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HDMI display blank on IMX8MQ Weston

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HDMI display blank on IMX8MQ Weston

‎10-10-2023 11:18 PM
1,999 Views
HennieLombaard
Contributor II

Hi

We have developed a board using the IMX8MQ processor, using yocto to build the image (repo init -u https://github.com/nxp-imx/imx-manifest -b imx-linux-langdale -m imx-6.1.1-1.0.0.xml). But I am strugling with what appears to me to be a weston issue. We are connecting directly with HDMI using dcss. I am currently working with the imx-full-image.

While the board is booting I can see the NXP Splash Screen in uboot, then 3 linux penguins during kernel boot, but the screen goes blank after I am given a login prompt (using UART debug header). If I try to run any applications (demoexperience, weston-image) they seem to run but nothing is displayed on the screen.

Oddly enough, if I uninstall weston from the image I can see a console login being displayed.

I have added video=HDMI-A-1:1920x1080-32@60 to my uboot bootcmd, and cannot see any errors from the bootlogs

 

dmesg | grep -i hdmi
[    0.072857] platform 32e00000.display-controller: Fixing up cyclic dependency with 32c00000.hdmi
[    2.040133] cdns-mhdp-imx 32c00000.hdmi: lane-mapping 0xe4
[    2.057701] imx-dcss 32e00000.display-controller: bound 32c00000.hdmi (ops cdns_mhdp_imx_ops)
[    2.114017] cdns-mhdp-imx 32c00000.hdmi: 0,ff,ff,ff,ff,ff,ff,0
[    2.161597] cdns-mhdp-imx 32c00000.hdmi: 0,ff,ff,ff,ff,ff,ff,0
[    9.913686] input: imx-audio-hdmi HDMI Jack as /devices/platform/sound-hdmi/sound/card0/input2
dmesg | grep -i dcss
[    2.057701] imx-dcss 32e00000.display-controller: bound 32c00000.hdmi (ops cdns_mhdp_imx_ops)
[    2.067477] [drm] Initialized imx-dcss 1.0.0 20190917 for 32e00000.display-controller on minor 0
[    2.437426] imx-dcss 32e00000.display-controller: [drm] fb0: imx-dcssdrmfb frame buffer device

 

From what I can see, it appears that HDMI is working (seeing images at various stages of boot) but there must be something I am missing with config.

 

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‎01-02-2024 03:31 AM
1,615 Views
solve_this
Contributor II

Can you tell me how you solved  this

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‎10-11-2023 08:24 PM
1,978 Views
Zhiming_Liu
NXP TechSupport
NXP TechSupport

Hi @HennieLombaard 

You can dump display information with modetest .

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‎10-11-2023 10:29 PM
1,958 Views
HennieLombaard
Contributor II

Thank you @Zhiming_Liu 

From modetest I am seeing the following:

 

root@imx8mq-evk:~# modetest
trying to open device 'i915'...failed
trying to open device 'amdgpu'...failed
trying to open device 'radeon'...failed
trying to open device 'nouveau'...failed
trying to open device 'vmwgfx'...failed
trying to open device 'omapdrm'...failed
trying to open device 'exynos'...failed
trying to open device 'tilcdc'...failed
trying to open device 'msm'...failed
trying to open device 'sti'...failed
trying to open device 'tegra'...failed
trying to open device 'imx-drm'...failed
trying to open device 'rockchip'...failed
trying to open device 'atmel-hlcdc'...failed
trying to open device 'fsl-dcu-drm'...failed
trying to open device 'vc4'...failed
trying to open device 'virtio_gpu'...failed
trying to open device 'mediatek'...failed
trying to open device 'meson'...failed
trying to open device 'pl111'...failed
trying to open device 'stm'...failed
trying to open device 'sun4i-drm'...failed
trying to open device 'armada-drm'...failed
trying to open device 'komeda'...failed
trying to open device 'imx-dcss'...done
[40109.167168] cdns-mhdp-imx 32c00000.hdmi: 0,ff,ff,ff,ff,ff,ff,0
Encoders:
id      crtc    type    possible crtcs  possible clones
50      36      TMDS    0x00000001      0x00000001

Connectors:
id      encoder status          name            size (mm)       modes   encoders
51      50      connected       HDMI-A-1        470x260         6       50
  modes:
        index name refresh (Hz) hdisp hss hse htot vdisp vss vse vtot
  #0 1920x1080 60.00 1920 2008 2052 2200 1080 1084 1089 1125 148500 flags: phsync, pvsync; type: driver
  #1 1920x1080 50.00 1920 2448 2492 2640 1080 1084 1089 1125 148500 flags: phsync, pvsync; type: driver
  #2 1280x720 60.00 1280 1390 1430 1650 720 725 730 750 74250 flags: phsync, pvsync; type: driver
  #3 1280x720 50.00 1280 1720 1760 1980 720 725 730 750 74250 flags: phsync, pvsync; type: driver
  #4 720x576 50.00 720 732 796 864 576 581 586 625 27000 flags: nhsync, nvsync; type: driver
  #5 720x480 59.94 720 736 798 858 480 489 495 525 27000 flags: nhsync, nvsync; type: driver
  props:
        1 EDID:
                flags: immutable blob
                blobs:

                value:
                        00ffffffffffff0012e50021502d3101
                        1c130103812f1a782e3585a656489a24
                        125054afef0001010101010101010101
                        0101010101013e0d200031e037102c58
                        3600dc0c1100001e000000ff00300a0a
                        0a0a0a0a0a0a0a0a0a0a000000fd0038
                        4b1e5315000a202020202020000000fc
                        0048444d490a0a0a0a0a0a0a0a0a01f8
                        020321714e0607020315961112130414
                        051f90230907078301000065030c0010
                        008c0ad090204031200c405500b98821
                        000018011d8018711c1620582c2500b9
                        882100009e011d80d0721c1620102c25
                        80b9882100009e011d00bc52d01e20b8
                        285540b9882100001e023a80d072382d
                        40102c4580b9882100001e00000000d0
        2 DPMS:
                flags: enum
                enums: On=0 Standby=1 Suspend=2 Off=3
                value: 0
        5 link-status:
                flags: enum
                enums: Good=0 Bad=1
                value: 0
        6 non-desktop:
                flags: immutable range
                values: 0 1
                value: 0
        4 TILE:
                flags: immutable blob
                blobs:

                value:
        7 HDR_OUTPUT_METADATA:
                flags: blob
                blobs:

                value:
        52 Colorspace:
                flags: enum
                enums: Default=0 SMPTE_170M_YCC=1 BT709_YCC=2 XVYCC_601=3 XVYCC_709=4 SYCC_601=5 opYCC_601=6 opRGB=7 BT2020_CYCC=8 BT2020_RGB=9 BT2020_YCC=10 DCI-P                                                 3_RGB_D65=11 DCI-P3_RGB_Theater=12
                value: 0
        53 Content Protection:
                flags: enum
                enums: Undesired=0 Desired=1 Enabled=2
                value: 0
        54 HDCP Content Type:
                flags: enum
                enums: HDCP Type0=0 HDCP Type1=1
                value: 0

CRTCs:
id      fb      pos     size
36      60      (0,0)   (1920x1080)
  #0 1920x1080 60.00 1920 2008 2052 2200 1080 1084 1089 1125 148500 flags: phsync, pvsync; type: driver
  props:
        24 VRR_ENABLED:
                flags: range
                values: 0 1
                value: 0

Planes:
id      crtc    fb      CRTC x,y        x,y     gamma size      possible crtcs
31      36      60      0,0             0,0     0               0x00000001
  formats: AR24 XR24 AB24 XB24 RA24 RX24 BA24 BX24 XR30 XB30 RX30 BX30 AR30 AB30 RA30 BA30 AYUV UYVY VYUY YUYV YVYU NV12 NV21 NV15
  props:
        8 type:
                flags: immutable enum
                enums: Overlay=0 Primary=1 Cursor=2
                value: 1
        30 IN_FORMATS:
                flags: immutable blob
                blobs:

                value:
                        01000000000000001800000018000000
                        04000000780000004152323458523234
                        41423234584232345241323452583234
                        42413234425832345852333058423330
                        52583330425833304152333041423330
                        52413330424133304159555655595659
                        5659555959555956595659554e563132
                        4e5632314e5631350310000000000000
                        00000000000000000100000000000006
                        03100000000000000000000000000000
                        02000000000000060310000000000000
                        00000000000000000500000000000006
                        ffffff00000000000000000000000000
                        0000000000000000
                in_formats blob decoded:
                         AR24:  VIVANTE_TILED VIVANTE_SUPER_TILED VIVANTE_SUPER_TILED_FC LINEAR
                         XR24:  VIVANTE_TILED VIVANTE_SUPER_TILED VIVANTE_SUPER_TILED_FC LINEAR
                         AB24:  LINEAR
                         XB24:  LINEAR
                         RA24:  LINEAR
                         RX24:  LINEAR
                         BA24:  LINEAR
                         BX24:  LINEAR
                         XR30:  LINEAR
                         XB30:  LINEAR
                         RX30:  LINEAR
                         BX30:  LINEAR
                         AR30:  VIVANTE_TILED VIVANTE_SUPER_TILED VIVANTE_SUPER_TILED_FC LINEAR
                         AB30:  LINEAR
                         RA30:  LINEAR
                         BA30:  LINEAR
                         AYUV:  LINEAR
                         UYVY:  LINEAR
                         VYUY:  LINEAR
                         YUYV:  LINEAR
                         YVYU:  LINEAR
                         NV12:  LINEAR
                         NV21:  LINEAR
                         NV15:  LINEAR
        33 zpos:
                flags: immutable range
                values: 2 2
                value: 2
        34 SCALING_FILTER:
                flags: enum
                enums: Default=0 Nearest Neighbor=1
                value: 0
        35 rotation:
                flags: bitmask
                values: rotate-0=0x1 rotate-90=0x2 rotate-180=0x4 rotate-270=0x8 reflect-x=0x10 reflect-y=0x20
                value: 1
        49 alpha:
                flags: range
                values: 0 65535
                value: 65535
37      0       0       0,0             0,0     0               0x00000001
  formats: AR24 XR24 AB24 XB24 RA24 RX24 BA24 BX24 XR30 XB30 RX30 BX30 AR30 AB30 RA30 BA30 AYUV UYVY VYUY YUYV YVYU NV12 NV21 NV15
  props:
        8 type:
                flags: immutable enum
                enums: Overlay=0 Primary=1 Cursor=2
                value: 0
        30 IN_FORMATS:
                flags: immutable blob
                blobs:

                value:
                        01000000000000001800000018000000
                        06000000780000004152323458523234
                        41423234584232345241323452583234
                        42413234425832345852333058423330
                        52583330425833304152333041423330
                        52413330424133304159555655595659
                        5659555959555956595659554e563132
                        4e5632314e5631350000e00000000000
                        000000000000000001000000000000f1
                        0000e000000000000000000000000000
                        02000000000000f10000e00000000000
                        000000000000000003000000000000f1
                        03100000000000000000000000000000
                        01000000000000060310000000000000
                        00000000000000000200000000000006
                        ffffff00000000000000000000000000
                        0000000000000000
                in_formats blob decoded:
                         AR24:  VIVANTE_TILED VIVANTE_SUPER_TILED LINEAR
                         XR24:  VIVANTE_TILED VIVANTE_SUPER_TILED LINEAR
                         AB24:  LINEAR
                         XB24:  LINEAR
                         RA24:  LINEAR
                         RX24:  LINEAR
                         BA24:  LINEAR
                         BX24:  LINEAR
                         XR30:  LINEAR
                         XB30:  LINEAR
                         RX30:  LINEAR
                         BX30:  LINEAR
                         AR30:  VIVANTE_TILED VIVANTE_SUPER_TILED LINEAR
                         AB30:  LINEAR
                         RA30:  LINEAR
                         BA30:  LINEAR
                         AYUV:  LINEAR
                         UYVY:  LINEAR
                         VYUY:  LINEAR
                         YUYV:  LINEAR
                         YVYU:  LINEAR
                         NV12:  VSI_UNKNOWN_MODIFIER VSI_UNKNOWN_MODIFIER VSI_UNKNOWN_MODIFIER LINEAR
                         NV21:  VSI_UNKNOWN_MODIFIER VSI_UNKNOWN_MODIFIER VSI_UNKNOWN_MODIFIER LINEAR
                         NV15:  VSI_UNKNOWN_MODIFIER VSI_UNKNOWN_MODIFIER VSI_UNKNOWN_MODIFIER LINEAR
        39 zpos:
                flags: immutable range
                values: 1 1
                value: 1
        40 SCALING_FILTER:
                flags: enum
                enums: Default=0 Nearest Neighbor=1
                value: 0
        41 rotation:
                flags: bitmask
                values: rotate-0=0x1 rotate-90=0x2 rotate-180=0x4 rotate-270=0x8 reflect-x=0x10 reflect-y=0x20
                value: 1
        42 dtrc_table_ofs:
                flags: range
                values: 0 18446744073709551615
                value: 0
        55 COLOR_ENCODING:
                flags: enum
                enums: ITU-R BT.601 YCbCr=0 ITU-R BT.709 YCbCr=1 ITU-R BT.2020 YCbCr=2
                value: 1
        56 COLOR_RANGE:
                flags: enum
                enums: YCbCr limited range=0 YCbCr full range=1
                value: 1
43      0       0       0,0             0,0     0               0x00000001
  formats: AR24 XR24 AB24 XB24 RA24 RX24 BA24 BX24 XR30 XB30 RX30 BX30 AR30 AB30 RA30 BA30 AYUV UYVY VYUY YUYV YVYU NV12 NV21 NV15
  props:
        8 type:
                flags: immutable enum
                enums: Overlay=0 Primary=1 Cursor=2
                value: 0
        30 IN_FORMATS:
                flags: immutable blob
                blobs:

                value:
                        01000000000000001800000018000000
                        06000000780000004152323458523234
                        41423234584232345241323452583234
                        42413234425832345852333058423330
                        52583330425833304152333041423330
                        52413330424133304159555655595659
                        5659555959555956595659554e563132
                        4e5632314e5631350000e00000000000
                        000000000000000001000000000000f1
                        0000e000000000000000000000000000
                        02000000000000f10000e00000000000
                        000000000000000003000000000000f1
                        03100000000000000000000000000000
                        01000000000000060310000000000000
                        00000000000000000200000000000006
                        ffffff00000000000000000000000000
                        0000000000000000
                in_formats blob decoded:
                         AR24:  VIVANTE_TILED VIVANTE_SUPER_TILED LINEAR
                         XR24:  VIVANTE_TILED VIVANTE_SUPER_TILED LINEAR
                         AB24:  LINEAR
                         XB24:  LINEAR
                         RA24:  LINEAR
                         RX24:  LINEAR
                         BA24:  LINEAR
                         BX24:  LINEAR
                         XR30:  LINEAR
                         XB30:  LINEAR
                         RX30:  LINEAR
                         BX30:  LINEAR
                         AR30:  VIVANTE_TILED VIVANTE_SUPER_TILED LINEAR
                         AB30:  LINEAR
                         RA30:  LINEAR
                         BA30:  LINEAR
                         AYUV:  LINEAR
                         UYVY:  LINEAR
                         VYUY:  LINEAR
                         YUYV:  LINEAR
                         YVYU:  LINEAR
                         NV12:  VSI_UNKNOWN_MODIFIER VSI_UNKNOWN_MODIFIER VSI_UNKNOWN_MODIFIER LINEAR
                         NV21:  VSI_UNKNOWN_MODIFIER VSI_UNKNOWN_MODIFIER VSI_UNKNOWN_MODIFIER LINEAR
                         NV15:  VSI_UNKNOWN_MODIFIER VSI_UNKNOWN_MODIFIER VSI_UNKNOWN_MODIFIER LINEAR
        45 zpos:
                flags: immutable range
                values: 0 0
                value: 0
        46 SCALING_FILTER:
                flags: enum
                enums: Default=0 Nearest Neighbor=1
                value: 0
        47 rotation:
                flags: bitmask
                values: rotate-0=0x1 rotate-90=0x2 rotate-180=0x4 rotate-270=0x8 reflect-x=0x10 reflect-y=0x20
                value: 1
        48 dtrc_table_ofs:
                flags: range
                values: 0 18446744073709551615
                value: 0
        57 COLOR_ENCODING:
                flags: enum
                enums: ITU-R BT.601 YCbCr=0 ITU-R BT.709 YCbCr=1 ITU-R BT.2020 YCbCr=2
                value: 1
        58 COLOR_RANGE:
                flags: enum
                enums: YCbCr limited range=0 YCbCr full range=1
                value: 1

Frame buffers:
id      size    pitch

 

 

So the imx-dcss driver is being loaded.

The screen is being picked up on HDMI-A-1? Using a strange resolution of 470x260 or is this physical screen size?

A Few modes are supported, including the one in my bootcmd.

Also I have the following screen env_variables set

 

root@imx8mq-evk:~# echo ${XDG_SESSION_TYPE}
tty
root@imx8mq-evk:~# echo ${XDG_RUNTIME_DIR}
/run/user/0
root@imx8mq-evk:~# echo ${WAYLAND_DISPLAY}
/run/wayland-0

 

 

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‎10-15-2023 07:20 PM
1,923 Views
Zhiming_Liu
NXP TechSupport
NXP TechSupport

The information is normal, works under 1920x1080@60

CRTCs:
id      fb      pos     size
36      60      (0,0)   (1920x1080)
  #0 1920x1080 60.00 1920 2008 2052 2200 1080 1084 1089 1125 148500 flags: phsync, pvsync; type: driver
  props:
        24 VRR_ENABLED:
                flags: range
                values: 0 1
                value: 0

 Can you dump the weston log and drm log when the weston can't start up？

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‎10-16-2023 01:57 AM
1,919 Views
HennieLombaard
Contributor II

Hi @Zhiming_Liu 

I am unsure where to get the DRM log.

WESTON:

imx8mq-evk:~# cat /run/user/0/weston.log
Date: 2023-10-11 UTC
[09:28:16.729] weston 11.0.1
               https://wayland.freedesktop.org
               Bug reports to: https://gitlab.freedesktop.org/wayland/weston/issues/
               Build: lf-6.1.1-1.0.0+
[09:28:16.733] Command line: /usr/bin/weston --log=/run/user/0/weston.log --modules=systemd-notify.so
[09:28:16.733] OS: Linux, 6.1.1+g29549c7073bf, #1 SMP PREEMPT Thu Mar  2 14:54:17 UTC 2023, aarch64
[09:28:16.733] Flight recorder: enabled
[09:28:16.740] Using config file '/etc/xdg/weston/weston.ini'
[09:28:16.757] Output repaint window is 16 ms maximum.
[09:28:16.777] Loading module '/usr/lib/libweston-11/drm-backend.so'
[09:28:16.875] initializing drm backend
[09:28:16.876] Trying logind launcher...
[09:28:16.901] logind: session control granted
[09:28:16.917] using /dev/dri/card0
[09:28:16.917] DRM: supports atomic modesetting
[09:28:16.917] DRM: supports GBM modifiers
[09:28:16.917] DRM: supports picture aspect ratio
[09:28:16.921] Loading module '/usr/lib/libweston-11/gl-renderer.so'
imx8mq-evk:~#

After systemctl stop weston, systemctl start weston

imx8mq-evk:~# cat /run/user/0/weston.log
Date: 2023-10-11 UTC
[09:28:16.729] weston 11.0.1
               https://wayland.freedesktop.org
               Bug reports to: https://gitlab.freedesktop.org/wayland/weston/issues/
               Build: lf-6.1.1-1.0.0+
[09:28:16.733] Command line: /usr/bin/weston --log=/run/user/0/weston.log --modules=systemd-notify.so
[09:28:16.733] OS: Linux, 6.1.1+g29549c7073bf, #1 SMP PREEMPT Thu Mar  2 14:54:17 UTC 2023, aarch64
[09:28:16.733] Flight recorder: enabled
[09:28:16.740] Using config file '/etc/xdg/weston/weston.ini'
[09:28:16.757] Output repaint window is 16 ms maximum.
[09:28:16.777] Loading module '/usr/lib/libweston-11/drm-backend.so'
[09:28:16.875] initializing drm backend
[09:28:16.876] Trying logind launcher...
[09:28:16.901] logind: session control granted
[09:28:16.917] using /dev/dri/card0
[09:28:16.917] DRM: supports atomic modesetting
[09:28:16.917] DRM: supports GBM modifiers
[09:28:16.917] DRM: supports picture aspect ratio
[09:28:16.921] Loading module '/usr/lib/libweston-11/gl-renderer.so'
Date: 2023-10-11 UTC
[09:33:12.881] weston 11.0.1
               https://wayland.freedesktop.org
               Bug reports to: https://gitlab.freedesktop.org/wayland/weston/issues/
               Build: lf-6.1.1-1.0.0+
[09:33:12.882] Command line: /usr/bin/weston --log=/run/user/0/weston.log --modules=systemd-notify.so
[09:33:12.882] OS: Linux, 6.1.1+g29549c7073bf, #1 SMP PREEMPT Thu Mar  2 14:54:17 UTC 2023, aarch64
[09:33:12.882] Flight recorder: enabled
[09:33:12.882] Using config file '/etc/xdg/weston/weston.ini'
[09:33:12.882] Output repaint window is 16 ms maximum.
[09:33:12.882] Loading module '/usr/lib/libweston-11/drm-backend.so'
[09:33:12.890] initializing drm backend
[09:33:12.891] Trying logind launcher...
[09:33:12.913] logind: session control granted
[09:33:12.923] using /dev/dri/card0
[09:33:12.923] DRM: supports atomic modesetting
[09:33:12.923] DRM: supports GBM modifiers
[09:33:12.923] DRM: supports picture aspect ratio
[09:33:12.923] Loading module '/usr/lib/libweston-11/gl-renderer.so'
imx8mq-evk:~#

DRM??

imx8mq-evk:~# dmesg | grep -i drm
[    2.047771] [drm] Failed to get HDCP config - using HDCP 2.2 only
[    2.069802] [drm] Initialized imx-dcss 1.0.0 20190917 for 32e00000.display-controller on minor 0
[    2.165624] [drm] Mode: 1920x1080p148500
[    2.205351] [drm] Pixel clock: 148500 KHz, character clock: 148500, bpc is 8-bit, fmt 1
[    2.205362] [drm] VCO frequency is 5940000 KHz
[    2.265735] [drm] Sink Not Support SCDC
[    2.266964] [drm] No vendor infoframe
[    2.439527] imx-dcss 32e00000.display-controller: [drm] fb0: imx-dcssdrmfb frame buffer device
[    5.266373] systemd[1]: Starting Load Kernel Module drm...
imx8mq-evk:~#

 

HDMI

imx8mq-evk:~# dmesg | grep -i hdmi
[    0.074992] platform 32e00000.display-controller: Fixing up cyclic dependency with 32c00000.hdmi
[    2.042244] cdns-mhdp-imx 32c00000.hdmi: lane-mapping 0xe4
[    2.059877] imx-dcss 32e00000.display-controller: bound 32c00000.hdmi (ops cdns_mhdp_imx_ops)
[    2.116353] cdns-mhdp-imx 32c00000.hdmi: 0,ff,ff,ff,ff,ff,ff,0
[    2.164357] cdns-mhdp-imx 32c00000.hdmi: 0,ff,ff,ff,ff,ff,ff,0
[    8.734992] input: imx-audio-hdmi HDMI Jack as /devices/platform/sound-hdmi/sound/card0/input2
[   53.089485] cdns-mhdp-imx 32c00000.hdmi: 0,ff,ff,ff,ff,ff,ff,0
imx8mq-evk:~#

 

 

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‎10-16-2023 02:01 AM
1,918 Views
HennieLombaard
Contributor II

Sorry to add to the above also

cat /var/log/syslog


Oct 11 09:30:13 imx8mq-evk trousers[685]: Starting Trusted Computing daemon:
Oct 11 09:30:13 imx8mq-evk trousers[685]: device driver not loaded, skipping.
Oct 11 09:30:13 imx8mq-evk systemd[1]: Started LSB: starts tcsd.
Oct 11 09:30:13 imx8mq-evk systemd[1]: Reached target Multi-User System.
Oct 11 09:30:13 imx8mq-evk systemd[1]: Reached target Graphical Interface.
Oct 11 09:30:13 imx8mq-evk systemd[1]: Starting Record Runlevel Change in UTMP...
Oct 11 09:30:13 imx8mq-evk systemd[1]: systemd-update-utmp-runlevel.service: Deactivated successfully.
Oct 11 09:30:13 imx8mq-evk systemd[1]: Finished Record Runlevel Change in UTMP.
Oct 11 09:30:13 imx8mq-evk systemd[1]: Startup finished in 3.211s (kernel) + 2min 5.071s (userspace) = 2min 8.282s.
Oct 11 09:33:12 imx8mq-evk systemd[1]: Starting Weston, a Wayland compositor, as a system service...
Oct 11 09:33:12 imx8mq-evk systemd[1]: Started Session c3 of User root.
Oct 11 09:33:12 imx8mq-evk kernel: audit: type=1006 audit(1697016792.819:19): pid=712 uid=0 old-auid=4294967295 auid=0 tty=tty7 old-ses=4294967295 ses=4 res=1
Oct 11 09:33:12 imx8mq-evk kernel: audit: type=1300 audit(1697016792.819:19): arch=c00000b7 syscall=64 success=yes exit=1 a0=8 a1=fffffbeb3f20 a2=1 a3=0 items=0 ppid=1 pid=712 auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=tty7 ses=4 comm="(weston)" exe="/lib/systemd/systemd" key=(null)
Oct 11 09:33:12 imx8mq-evk kernel: audit: type=1327 audit(1697016792.819:19): proctitle="(weston)"
Oct 11 09:33:13 imx8mq-evk weston[712]: [     1] Failed to open device: No such file or directory, Try again...
Oct 11 09:33:14 imx8mq-evk weston[712]: [     2] Failed to open device: No such file or directory, Try again...
Oct 11 09:33:15 imx8mq-evk weston[712]: [     3] Failed to open device: No such file or directory, Try again...
Oct 11 09:33:16 imx8mq-evk weston[712]: [     4] Failed to open device: No such file or directory, Try again...
Oct 11 09:33:16 imx8mq-evk weston[712]: [     5] _OpenDevice(1159): FATAL: Failed to open device, errno=No such file or directory.
Oct 11 09:33:17 imx8mq-evk weston[712]: [     6] Failed to open device: No such file or directory, Try again...
Oct 11 09:33:18 imx8mq-evk weston[712]: [     7] Failed to open device: No such file or directory, Try again...
Oct 11 09:33:19 imx8mq-evk weston[712]: [     8] Failed to open device: No such file or directory, Try again...
Oct 11 09:33:20 imx8mq-evk weston[712]: [     9] Failed to open device: No such file or directory, Try again...
Oct 11 09:33:20 imx8mq-evk weston[712]: [    10] _OpenDevice(1159): FATAL: Failed to open device, errno=No such file or directory.
Oct 11 09:33:20 imx8mq-evk systemd[1]: weston.service: Main process exited, code=exited, status=1/FAILURE
Oct 11 09:33:20 imx8mq-evk systemd[1]: weston.service: Failed with result 'exit-code'.
Oct 11 09:33:20 imx8mq-evk systemd[1]: Failed to start Weston, a Wayland compositor, as a system service.
Oct 11 09:33:21 imx8mq-evk systemd[1]: session-c3.scope: Deactivated successfully.
imx8mq-evk:~#

Not sure of that helps

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‎10-16-2023 07:21 PM
1,907 Views
Zhiming_Liu
NXP TechSupport
NXP TechSupport

Please try 24 bit, not 32 bit.

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‎10-16-2023 09:59 PM
1,897 Views
HennieLombaard
Contributor II

Hi @Zhiming_Liu 

I am very unsure of what I did and changed, made so many changes to try and resolve this.

I fiddled with the device tree, I must have fixed something there that I didn't know was broken. My screen works now, although I am stumped as to how I got it fixed.

imx8mq-evk:~# dmesg | grep -i hdmi
[    0.073247] platform 32e00000.display-controller: Fixing up cyclic dependency with 32c00000.hdmi
[    2.156557] cdns-mhdp-imx 32c00000.hdmi: lane-mapping 0xe4
[    2.174252] imx-dcss 32e00000.display-controller: bound 32c00000.hdmi (ops cdns_mhdp_imx_ops)
[    2.228700] cdns-mhdp-imx 32c00000.hdmi: 0,ff,ff,ff,ff,ff,ff,0
[    2.274274] cdns-mhdp-imx 32c00000.hdmi: 0,ff,ff,ff,ff,ff,ff,0
[    9.681463] input: imx-audio-hdmi HDMI Jack as /devices/platform/sound-hdmi/sound/card0/input2
[   13.204753] cdns-mhdp-imx 32c00000.hdmi: 0,ff,ff,ff,ff,ff,ff,0

imx8mq-evk:~# dmesg | grep -i drm
[    1.943391] [drm] Initialized vivante 1.0.0 20170808 for 38000000.gpu3d on minor 0
[    2.162083] [drm] Failed to get HDCP config - using HDCP 2.2 only
[    2.184157] [drm] Initialized imx-dcss 1.0.0 20190917 for 32e00000.display-controller on minor 1
[    2.275540] [drm] Mode: 1920x1080p148500
[    2.315640] [drm] Pixel clock: 148500 KHz, character clock: 148500, bpc is 8-bit, fmt 1
[    2.315650] [drm] VCO frequency is 5940000 KHz
[    2.376023] [drm] Sink Not Support SCDC
[    2.377251] [drm] No vendor infoframe
[    2.549819] imx-dcss 32e00000.display-controller: [drm] fb0: imx-dcssdrmfb frame buffer device
[    5.752325] systemd[1]: Starting Load Kernel Module drm...


imx8mq-evk:~# dmesg | grep -i dcss
[    2.174252] imx-dcss 32e00000.display-controller: bound 32c00000.hdmi (ops cdns_mhdp_imx_ops)
[    2.184157] [drm] Initialized imx-dcss 1.0.0 20190917 for 32e00000.display-controller on minor 1
[    2.549819] imx-dcss 32e00000.display-controller: [drm] fb0: imx-dcssdrmfb frame buffer device

imx8mq-evk:~# cat /run/user/0/weston.log
Date: 2023-10-17 SAST
[05:59:17.233] weston 11.0.1
               https://wayland.freedesktop.org
               Bug reports to: https://gitlab.freedesktop.org/wayland/weston/issues/
               Build: lf-6.1.1-1.0.0+
[05:59:17.237] Command line: /usr/bin/weston --log=/run/user/0/weston.log --modules=systemd-notify.so
[05:59:17.237] OS: Linux, 6.1.1+g29549c7073bf, #1 SMP PREEMPT Thu Mar  2 14:54:17 UTC 2023, aarch64
[05:59:17.237] Flight recorder: enabled
[05:59:17.248] Using config file '/etc/xdg/weston/weston.ini'
[05:59:17.265] Output repaint window is 16 ms maximum.
[05:59:17.275] Loading module '/usr/lib/libweston-11/drm-backend.so'
[05:59:17.373] initializing drm backend
[05:59:17.373] Trying logind launcher...
[05:59:17.395] logind: session control granted
[05:59:17.420] using /dev/dri/card1
[05:59:17.420] DRM: supports atomic modesetting
[05:59:17.421] DRM: supports GBM modifiers
[05:59:17.421] DRM: supports picture aspect ratio
[05:59:17.422] Loading module '/usr/lib/libweston-11/gl-renderer.so'
[05:59:17.599] Using rendering device: /dev/dri/renderD128
[05:59:17.599] EGL version: 1.5
[05:59:17.599] EGL vendor: Vivante Corporation
[05:59:17.599] EGL client APIs: OpenGL_ES OpenVG
[05:59:17.599] EGL features:
               EGL Wayland extension: yes
               context priority: no
               buffer age: yes
               partial update: yes
               swap buffers with damage: yes
               configless context: yes
               surfaceless context: yes
               dmabuf support: modifiers
[05:59:17.713] GL version: OpenGL ES 3.1 V6.4.11.p1.608260
[05:59:17.713] GLSL version: OpenGL ES GLSL ES 3.10
[05:59:17.713] GL vendor: Vivante Corporation
[05:59:17.713] GL renderer: Vivante GC7000L
[05:59:17.990] GL ES 3.1 - renderer features:
               read-back format: ARGB8888
               wl_shm 10 bpc formats: yes
               wl_shm 16 bpc formats: no
               wl_shm half-float formats: no
               internal R and RG formats: yes
               OES_EGL_image_external: yes
[05:59:18.051] event0  - 30370000.snvs:snvs-powerkey: is tagged by udev as: Keyboard
[05:59:18.051] event0  - 30370000.snvs:snvs-powerkey: device is a keyboard
[05:59:18.126] event1  - TeNizo TeNizo_R7Series_TC: is tagged by udev as: Touchscreen
[05:59:18.126] event1  - TeNizo TeNizo_R7Series_TC: device is a touch device
[05:59:18.136] event2  - imx-audio-hdmi HDMI Jack: is tagged by udev as: Switch
[05:59:18.137] event2  - not using input device '/dev/input/event2'
[05:59:18.217] libinput: configuring device "30370000.snvs:snvs-powerkey".
[05:59:18.217] Touchscreen - TeNizo TeNizo_R7Series_TC - /sys/devices/platform/soc@0/38200000.usb/xhci-hcd.1.auto/usb1/1-1/1-1.1/1-1.1:1.0/0003:1A86:E5E3.0001/input/input3/event1
[05:59:18.217] libinput: configuring device "TeNizo TeNizo_R7Series_TC".
[05:59:18.217] input device event1 has no enabled output associated (none named), skipping calibration for now.
[05:59:18.261] DRM: head 'HDMI-A-1' updated, connector 51 is connected, EDID make 'DWE', model 'HDMI', serial '0'
               Supported EOTF modes: SDR, traditional gamma HDR, ST2084, HLG
[05:59:18.261] DRM: head 'HDMI-A-1' found, connector 51 is connected, EDID make 'DWE', model 'HDMI', serial '0'
               Supported EOTF modes: SDR, traditional gamma HDR, ST2084, HLG
[05:59:18.262] Registered plugin API 'weston_drm_output_api_v1' of size 32
[05:59:18.262] Color manager: no-op
[05:59:18.263] Module '/usr/lib/libgbm.so' already loaded
[05:59:18.263] Output 'HDMI-A-1' attempts EOTF mode: SDR
[05:59:18.263] Output 'HDMI-A-1' using color profile: built-in default sRGB SDR profile
[05:59:18.270] Chosen EGL config details: id:  31 rgba: 8 8 8 8 buf: 32 dep:  0 stcl: 0 int: 1-60 type: win|pix|pbf|swap_preserved vis_id: ARGB8888 (0x34325241)
[05:59:18.270] Output HDMI-A-1 (crtc 36) video modes:
               1920x1080@60.0 16:9, current, 148.5 MHz
               1920x1080@50.0, 148.5 MHz
               1920x1080@50.0 16:9, 148.5 MHz
               1280x720@60.0 16:9, 74.2 MHz
               1280x720@50.0, 74.2 MHz
               1280x720@50.0 16:9, 74.2 MHz
               720x576@50.0, 27.0 MHz
               720x576@50.0 4:3, 27.0 MHz
               720x576@50.0 16:9, 27.0 MHz
               720x480@59.9 4:3, 27.0 MHz
               720x480@59.9 16:9, 27.0 MHz
[05:59:18.270] associating input device event0 with output HDMI-A-1 (none by udev)
[05:59:18.270] associating input device event1 with output HDMI-A-1 (none by udev)
[05:59:18.271] Output 'HDMI-A-1' enabled with head(s) HDMI-A-1
[05:59:18.272] Compositor capabilities:
               arbitrary surface rotation: yes
               screen capture uses y-flip: yes
               cursor planes: yes
               arbitrary resolutions: no
               view mask clipping: yes
               explicit sync: yes
               color operations: no
               presentation clock: CLOCK_MONOTONIC, id 1
               presentation clock resolution: 0.000000001 s
[05:59:18.280] Loading module '/usr/lib/weston/desktop-shell.so'
[05:59:18.289] Loading module '/usr/lib/libweston-11/xwayland.so'
[05:59:18.555] Registered plugin API 'weston_xwayland_v1' of size 32
[05:59:18.555] Registered plugin API 'weston_xwayland_surface_v1' of size 16
[05:59:18.556] xserver listening on display :0
[05:59:18.557] Loading module '/usr/lib/weston/systemd-notify.so'
[05:59:18.558] info: add 1 socket(s) provided by systemd
[05:59:18.558] launching '/usr/libexec/weston-keyboard'
[05:59:18.568] launching '/usr/libexec/weston-desktop-shell'

imx8mq-evk:~# cat /var/log/syslog | grep -i drm
Oct 17 05:59:05 imx8mq-evk kernel: [drm] Initialized vivante 1.0.0 20170808 for 38000000.gpu3d on minor 0
Oct 17 05:59:06 imx8mq-evk kernel: [drm] Failed to get HDCP config - using HDCP 2.2 only
Oct 17 05:59:06 imx8mq-evk kernel: [drm] Initialized imx-dcss 1.0.0 20190917 for 32e00000.display-controller on minor 1
Oct 17 05:59:06 imx8mq-evk kernel: [drm] Mode: 1920x1080p148500
Oct 17 05:59:06 imx8mq-evk kernel: [drm] Pixel clock: 148500 KHz, character clock: 148500, bpc is 8-bit, fmt 1
Oct 17 05:59:06 imx8mq-evk kernel: [drm] VCO frequency is 5940000 KHz
Oct 17 05:59:06 imx8mq-evk kernel: [drm] Sink Not Support SCDC
Oct 17 05:59:06 imx8mq-evk kernel: [drm] No vendor infoframe
Oct 17 05:59:06 imx8mq-evk kernel: imx-dcss 32e00000.display-controller: [drm] fb0: imx-dcssdrmfb frame buffer device
Oct 17 05:59:09 imx8mq-evk systemd[1]:  Starting Load Kernel Module drm...

 

I will go over the logs to see what is different, maybe I can come to an answer that might someone else struggling with something similar.

Thank you very much fro your assistance @Zhiming_Liu 

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