Arch Linux

rigers

Member

Registered: 2019-08-26

Posts: 5

Cannot set external monitors at the same resolution

Hi,

I have a Lenovo Thinkpad X1 Extreme Gen 2 laptop connected to two external Acer G246HL monitors. One is connected to the USB-C display port, and the other to the HDMI port. When I first installed Arch on this laptop I was able to have all 3 monitors (including the laptop display) set at 1920 X 1080. However, after an update pacman -Syu I cannot set both the external monitors at the same resolution. I can set one at 1920x1080, and the other at 1680x1050 for example. When I try and set both at 1920x1080 one of them displays Input Not Supported. The same thing happens if I set both at 1680x1050 as well. I'm pretty stumped at this point.

OS: Arch Linux 
Kernel: x86_64 Linux 5.9.1-arch1-1
Resolution: 5520x1080
DE: Xfce4
WM: Xfwm4
WM Theme: Default
GTK Theme: Adwaita-dark [GTK2]
Icon Theme: Adwaita
Font: Sans 10
Disk: 44G / 484G (10%)
CPU: Intel Core i9-9880H @ 16x 4.8GHz [48.0°C]
GPU: GeForce GTX 1650

$ optimus-manager --status

Optimus Manager (Client) version 1.2.2

Current GPU mode : nvidia
GPU mode requested for next login : nvidia
GPU mode for next startup : nvidia
Temporary config path: no

When I use nvidia-settings the laptop display (eDP-1-1) it says PRIME Displays cannot be controlled by nvidia-settings (not sure if relevant), but the external monitors I can configure.

 $ lspci -k | grep -A 2 -E "(VGA|3D)"
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile) (rev 02)
	Subsystem: Lenovo Device 22a8
	Kernel driver in use: i915
--
01:00.0 VGA compatible controller: NVIDIA Corporation TU117M [GeForce GTX 1650 Mobile / Max-Q] (rev a1)
	Subsystem: Lenovo Device 22a8
	Kernel driver in use: nvidia

$ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x1b8 cap: 0x1, Source Output crtcs: 4 outputs: 3 associated providers: 1 name:NVIDIA-0
Provider 1: id: 0x1f6 cap: 0xf, Source Output, Sink Output, Source Offload, Sink Offload crtcs: 3 outputs: 1 associated providers: 1 name:modesetting

$ xrandr
Screen 0: minimum 8 x 8, current 5520 x 1080, maximum 32767 x 32767
DP-0 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 531mm x 299mm
   1920x1080     60.00*+
   1680x1050     59.95  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1280x800      59.81  
   1280x720      60.00  
   1152x864      75.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   640x480       75.00    72.81    59.94  
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected 1680x1050+3840+0 (normal left inverted right x axis y axis) 530mm x 300mm
   1920x1080     60.00 +
   1680x1050     59.95* 
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x960      60.00  
   1280x800      59.81  
   1280x720      60.00  
   1152x864      75.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   640x480       75.00    72.81    59.94  
eDP-1-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   3840x2160     60.00 +  59.98    59.97  
   3200x1800     59.96    59.94  
   2880x1620     59.96    59.97  
   2560x1600     59.99    59.97  
   2560x1440     59.99    59.99    59.96    59.95  
   2048x1536     60.00  
   1920x1440     60.00  
   1856x1392     60.01  
   1792x1344     60.01  
   2048x1152     59.99    59.98    59.90    59.91  
   1920x1200     59.88    59.95  
   1920x1080     60.01*   59.97    59.96    59.93  
   1600x1200     60.00  

Last edited by rigers (2020-11-02 18:22:45)