F26 16:9 resolutions not listed when in Xorg session (on on Wayland)

asked 2017-09-14 11:18:24 +0000

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Just fresh installed F26, and need help with screen resolution.

I want to set my hidpi laptop screen (3840x2160 native) to 1920x1080 to match the DPI of my second/third screen, but the mode is not listed in Display Settings, like it used to be on F24 (also Xorg)

I get all screen modes listed on Wayland session, but the reason for not using Wayland is that I have to connect one extra screen via USB using DisplayLink

I can set the desired mode via xrandr and it works fine,

sudo cvt 1920 1080 60
sudo xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
sudo xrandr --addmode eDP-1 1920x1080_60.00

I could of course make those commands run on startup, but I just don't get why it should not be working the regular way, especially that it worked on F24 and works on Wayland. All of the modes are 4:3 except for native and some weird 5:4 mode.

Kernel 4.12.11-300.fc26.x86_64

$ lspci | grep VGA  
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)

1920x1080 is not listed neither in Display Manager nor xrander output

$ xrandr -d :0
Screen 0: minimum 320 x 200, current 6400 x 2160, maximum 8192 x 8192
eDP-1 connected 3840x2160+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   3840x2160     48.00*+
   2048x1536     60.00  
   1920x1440     60.00  
   1856x1392     60.01  
   1792x1344     60.01  
   1600x1200     60.00  
   1400x1050     59.98  
   1280x1024     60.02  
   1280x960      60.00  
   1024x768      60.04    60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   800x600       60.00    60.32    56.25  
   700x525       59.98  
   640x512       60.02  
   640x480       60.00    59.94  
   512x384       60.00  
   400x300       60.32    56.34  
   320x240       60.05


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