Ubuntu switched to using the "full" KMS graphics stack in Hirsute
(21.04). However, this means that the traditional means of forcing an
HDMI mode (hdmi_group, and hdmi_mode in config.txt) no longer work.
There's a couple of ways forward here, but first I should point out that
I don't think this is
I think Ubuntu is identifying wrong settings for my monitors,when I
start the pi it sets the resolution to 1920x1080(16:9),which is not
supported by my monitors,The maximum resolution is 1366x768(16:9),Is
there any way to change that?
** Changed in: ubuntu
Assignee: Midhun Mathew (memidhun)
Yup I tried that but no hope,I tried all the possible combinations.For other
distro's this usually works fine.Even with the older version of Ubuntu this
worked, but after that update to Ubuntu 21.04 this isn't working anymore.
I tried changing hdmi_mode=39/86/87,hdmi_group=2 and hdmi_cvt=1366 768
Try appending config with your group, mode and cvt values, plus:
hdmi_force_hotplug=1
I was having a similar issue connecting my RPI3 to an older Dell monitor
through a HDMI to VGA adapter and this did the trick for me.
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Ok.Thanks
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Title:
Display resolution not properly identifying in Ubuntu 21.04
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Title:
Display resolution not properly identifying in Ubuntu 21.04
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