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Bug 673416 - gnome-base/gnome-shell-3.26.2-r4 impossible to set non-native resolution
Summary: gnome-base/gnome-shell-3.26.2-r4 impossible to set non-native resolution
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo Linux Gnome Desktop Team
Depends on:
Reported: 2018-12-19 08:03 UTC by Anton Gubarkov
Modified: 2019-10-15 07:19 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---

xorg.log (Xorg.1.log,681.23 KB, text/plain)
2018-12-19 08:03 UTC, Anton Gubarkov

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Description Anton Gubarkov 2018-12-19 08:03:28 UTC
Created attachment 558140 [details]

With gnome-session 3.24 I could lower the resolution of the display panel of my notebook. I can no longer do it with 3.26.2-r4. It affects also screen mirroring feature when I connect a monitor with resolution different from the resolution of the display panel (3840x2160). I can only join the displays - thus having native resolutions for both displays.
Comment 1 Mart Raudsepp gentoo-dev 2019-03-09 08:37:25 UTC
Does it work with 3.28?
Comment 2 Anton Gubarkov 2019-03-10 19:21:35 UTC
It seems that it is associated with BIOS upgrade. Something changed in the EDID and I can no longer set anything less than 4K (native) in X (no matter what DE I use).
Comment 3 Anton Gubarkov 2019-10-15 07:19:34 UTC
Looking deeper into this I found out that I can change any resolution when I use intel card (Hybrid graphics in BIOS). When I set discrete graphics in BIOS, only 4K is available for the internal panel.

This has a very annoying effect when I connect an external display and want to mirror my display. I can't do it since the panel cannot lower the resolution and 4K projectors are far from being ubiquitous.