4K resolution is not supported on ls1028ardb

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4K resolution is not supported on ls1028ardb

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Eddy1
Contributor V

Hi:

Does ls1028ardb support 4K resolution? When the 4K resolution is set, it is found that the Weston desktop is not displayed. The steps are as follows:

1.vi /etc/xdg/weston/weston.ini:

idle-time=0
#use-g2d=1
#xwayland=true
gbm-format=argb8888

[libinput]
#touchscreen_calibrator=true

[output]
name=DP-1
mode=3840x2160@60
force-on=true
#transform=90

[shell]
size=3840x2160

2.Then set the Weston display:

root@LS1028ARDB:~# mkdir -p /run/user/0/
root@LS1028ARDB:~# export XDG_RUNTIME_DIR="/run/user/0/"
root@LS1028ARDB:~# weston --tty=1 &

3.check the mode

root@LS1028ARDB:~# weston-info

04:37:42.155] failed to create input devices
[04:37:42.171] DRM: head 'DP-1' found, connector 56 is connected, EDID make 'AOC', model 'U2790R3B', serial '7010'
[04:37:42.179] Registered plugin API 'weston_drm_output_api_v1' of size 24
[04:37:42.221] Chosen EGL config details: id: 51 rgba: 8 8 8 8 buf: 32 dep: 0 stcl: 0 int: 1-60 type: win|pix|pbf|swap_preserved vis_id: ARGB8888 (0x34325241)
[04:37:42.221] Output DP-1 (crtc 48) video modes:
3840x2160@60.0, preferred, current, 533.2 MHz

I would appreciate your advice?

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Pavel
NXP Employee
NXP Employee

Besides the steps you listed, the following steps are needed for 4K resolution.
1. Update the bootargs in uboot and change it to 4K as attached log.
2. apply the patch as attched.

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Pavel
NXP Employee
NXP Employee

Besides the steps you listed, the following steps are needed for 4K resolution.
1. Update the bootargs in uboot and change it to 4K as attached log.
2. apply the patch as attched.

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Eddy1
Contributor V

Thank you very much for your support.

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