Hi Toradex Community,
I am currently developing a Yocto image to run a Qt6 app using the following configs/version:
- Yocto 4.0.11 (Kirkstone)
- Uboot 2022.07
- Kernel version 6.1.37
- Yocto manifest: Boot2Qt 6.2.10 for Toradex (v6.2.10-lts.xml)
- Board: Apalis iMX6
- External screen resolution 1366x768
- Connection type: HDMI
On my previous version, I was working with Yocto 3.1 (Dunfell), and to set the screen’s resolution, I would create a file /etv/fb.modes containing the following:
mode “1360x768 60.00Hz 32bit (GTF)”
# PCLK: 84.72 MHz, H: 47.70 kHz, V: 60.00 Hz
geometry 1360 768 1360 768 32
timings 11804 208 64 23 1 144 3
Calling the command
fbset “1360x768 60.00Hz 32bit (GTF)”
would then work like a charm, immediately setting the screen’s resolution to it.
However, upon upgrading the kernel, even though I am using the same hardware, screen and connections, calling this custom display resolution now outputs
fbset: FBIOPUT_VSCREENINFO: Invalid argument
I’ve taken a look at Display Output, Resolution and Timings (Linux) | Toradex Developer Center, but changing vidargs to anything doesn’t seem to have any effect.
Would anyone be able to help me figure out what’s missing, or if this newer version has a new way to set custom resolutions?
Thanks in advance,