imx6 Solox Galcore device node not getting created

chintanchoksi — Sat, 07 Mar 2020 12:06:17 GMT

Hello,

We have been working on to run qt 5 on i.MX 6 Solo X board. While running QT application,

We set following environment variable.

export QT_QPA_EGLFS_FB=/dev/fb0
export FB_FRAMEBUFFER_0=/dev/fb0
export QT_EGLFS_IMX6_NO_FB_MULTI_BUFFER=1
export QT_QPA_EGLFS_FORCEVSYNC=1
export QT_QPA_PLATFORM=eglfs

We see following error.

/opt/QT_App -platform eglfs
QEglFSVivIntegration will set environment variable FB_MULTI_BUFFER=2 to enable double buffering and vsync.
If this is not desired, you can override this via: export QT_EGLFS_IMX6_NO_FB_MULTI_BUFFER=1
[     1] Failed to open device: No such file or directory, Try again...
[     2] Failed to open device: No such file or directory, Try again...
[     3] Failed to open device: No such file or directory, Try again...
[     4] Failed to open device: No such file or directory, Try again...
[     5] _OpenDevice(1228): FATAL: Failed to open device, errno=No such file or directory.
[     6] Failed to open device: No such file or directory, Try again...
[     7] Failed to open device: No such file or directory, Try again...
[     8] Failed to open device: No such file or directory, Try again...
[     9] Failed to open device: No such file or directory, Try again...
[    10] _OpenDevice(1228): FATAL: Failed to open device, errno=No such file or directory.

After debugging further, we understand that /dev/galcore node is required which is not being created in our case.

We have enabled following things in kernel config,

CONFIG_DRM_VIVANTE=y

CONFIG_DRM_BRIDGE=y

CONFIG_MXC_IPU=y
CONFIG_MXC_IPU_V3=y
CONFIG_MXC_IPU_V3_PRG=y
CONFIG_MXC_IPU_V3_PRE=y

CONFIG_MXC_GPU_VIV=y

We have also verified that meta-freescale layer has udev entries for galcore device node.

Can anyone point out what can be the issue ?

Re: imx6 Solox Galcore device node not getting created

Bio_TICFSL — Mon, 09 Mar 2020 16:07:31 GMT

Hello chintanchoksi,

pls refer to the document which tell you how to set Environment variables:

How do I set the environment variable XDG_RUNTIME_DIR to '/tmp/runtime-root'? - Help - Chakra's Community

https://wiki.archlinux.org/index.php/environment_variables

Now are using the 4.19.35 BSP?

Regards

topic Re: imx6 Solox Galcore device node not getting created in i.MX Processors

imx6 Solox Galcore device node not getting created

Re: imx6 Solox Galcore device node not getting created