Missing screen resolutions

Hi all,

I use a Manjaro stable with a Lenovo C940 laptop. Mostly a happy user, though there were some audio and thermal shutdown issues in the beginning. The arch/gentoo guides helped me straighten it out. (I can add links now: [1] and [2])

However, recently I noticed an odd behaviour with my screen resolutions. When I first installed the system a large range of screen resolutions were available to select from, but they are gone now. I am normally very happy with 1600x900 resolution, but recently I bought some old timey games from gog, and they need to be run in ancient screen resolutions. Below is some diagnostic information that might be useful.

Kernel: 5.9.11

$ xrandr
Screen 0: minimum 8 x 8, current 1600 x 900, maximum 32767 x 32767
eDP1 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 310mm x 170mm
1600x900_60.00 59.95*+
3840x2160 60.00 +
1600x900 59.95
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
DP3 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

Graphics information:

$ inxi -G
Graphics: Device-1: Intel Iris Plus Graphics G7 driver: i915 v: kernel
Device-2: Chicony Integrated Camera type: USB driver: uvcvideo
Display: x11 server: XOrg 1.20.10 driver: intel resolution: 1600x900~60Hz
OpenGL: renderer: Mesa Intel Iris Plus Graphics (ICL GT2) v: 4.6 Mesa 20.2.3

I’m using the video-linux driver, not the modesetting or vesa drivers. Not sure what the difference is. The video-linux is more than 2 years old though, maybe modesetting will be better.

$ mhwd

              NAME               VERSION          FREEDRIVER           TYPE

       video-linux            2018.05.04                true            PCI
 video-modesetting            2020.01.13                true            PCI
        video-vesa            2017.03.12                true            PCI

[1] Lenovo Yoga c940 - ArchWiki
[2] Lenovo Yoga C940 - Gentoo Wiki

Hi and welcome to the forum :+1:

It might help to provide info about which version of Manjaro you installed. (Just noticed you are using XFCE)
Solutions could be different depending on that info with respect to display managers…

Yes, I’m using XFCE. It doesn’t look like it is related to the desktop environment thought. My money is on the graphics driver or the XOrg. xrandr is hardly seeing any resolutions.

The different versions have a slightly different setup/config that’s why…
Not directly related to the DE used, but more with the WM…