Arch Linux

emcannon

Member

Registered: 2022-04-20

Posts: 2

issues with xrandr - hdmi monitor stuck at low framerate

Hello,
I've been having some issues attempting to try to migrate from manjaro to arch recently, namely that I can't seem to get my 2nd monitor to refresh at a high refresh rate (120-144hz). I know that it is capable with the connections and cables I have (I was able to get it to run flawlessly at 120hz on manjaro a couple days ago), and trying to use xrandr to update the refresh rate isn't working. I can update the mode and refresh rate on my other monitor (DP-1) just fine, but the HDMI-1 monitor is just not updating. I was originally using the noveau drivers, and I installed the nvidia drivers relevant to my gpu (NVIDIA GeForce GTX TITAN) to see if that would fix anything, but it didn't seem to help. The output from xrandr is appended at the bottom of the page. The command that I am currently trying to use to update the refresh rate is...
xrandr --output DP-1 --mode 1920x1080 --rate 144 --primary --left-of HDMI-1 --output HDMI-1 --mode 1920x1080 --rate 120
...Am I doing something wrong / missing something obvious? Any help would be appreciated. Thanks in advance!
- EmCannon

~ ~ ~ Output from xrandr ~ ~ ~
Screen 0: minimum 320 x 200, current 3840 x 1080, maximum 16384 x 16384
DVI-I-1 disconnected (normal left inverted right x axis y axis)
DVI-D-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 connected 1920x1080+1920+0 (normal left inverted right x axis y axis) 531mm x 299mm
   1920x1080    119.98*+  60.00    50.00    59.94
   1920x1080i    60.00    50.00    59.94
   1680x1050     59.88
   1280x1024     60.02
   1440x900      59.90
   1280x960      60.00
   1280x800      59.91
   1152x864      75.00
   1280x720      60.00    50.00    59.94
   1024x768      70.07    60.00
   800x600       60.32    56.25
   720x576       50.00
   720x480       60.00    59.94
   640x480       66.67    60.00    59.94
   720x400       70.08
DP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 531mm x 299mm
   1920x1080     60.00 + 144.00*  119.98    99.93    50.00    59.94
   1680x1050     59.95
   1280x1024     60.02
   1440x900      59.89
   1280x960      60.00
   1280x800      59.81
   1152x864      75.00
   1280x720      60.00    50.00    59.94
   1024x768      70.07    60.00
   800x600       60.32    56.25
   720x576       50.00
   720x480       60.00    59.94
   640x480       66.67    60.00    59.94
   720x400       70.08

deid84

Member

From: Turin - Italy

Registered: 2022-03-30

Posts: 7

Re: issues with xrandr - hdmi monitor stuck at low framerate

Hello, could you please tell me what DE are you using? Just to give you some alternatives to xrandr

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"We all live under the same sky, but we don't all have the same horizon."

emcannon

Member

Registered: 2022-04-20

Posts: 2

Re: issues with xrandr - hdmi monitor stuck at low framerate

Hello, could you please tell me what DE are you using? Just to give you some alternatives to xrandr

I am trying to use bspwm. I have windows appearing and tiling just fine.

deid84

Member

From: Turin - Italy

Registered: 2022-03-30

Posts: 7

Re: issues with xrandr - hdmi monitor stuck at low framerate

bspwm is not a desktop environment but a window manager. I think that probably using a full DE could give you better integration with monitors. However as I can see there's a section for multiple monitor management here https://wiki.archlinux.org/title/bspwm

I've never used this window manager but there's a particular section for multiple monitor management, hope it helps.

If you decide to use a DE consider that they all have an option into settings to manage multiple monitors.

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"We all live under the same sky, but we don't all have the same horizon."

seth

Member

From: Don't DM me only for attention

Registered: 2012-09-03

Posts: 74,100

Re: issues with xrandr - hdmi monitor stuck at low framerate

Please edit the initial post and wrap the xrandr output in code tags, https://bbs.archlinux.org/help.php#bbcode

On topic: the default rates are 120Hz on the HDMI-1 and 60Hz on the DP-1 output.
Afaiu there's no issue w/ the higher rates themselves (the active mode on the DP-1 /is/ the 144Hz one) you just would like the DPI-1 ouput to default to 144Hz?

Otherwise please explain how you deduce

I can't seem to get my 2nd monitor to refresh at a high refresh rate (120-144hz).

The command that I am currently trying to use to update the refresh rate is...
xrandr --output DP-1 --mode 1920x1080 --rate 144 --primary --left-of HDMI-1 --output HDMI-1 --mode 1920x1080 --rate 120
...Am I doing something wrong / missing something obvious

xrandr sucks at manipulating two outputs at once, if there's any issue w/ the above try to segment it

xrandr --output DP-1 --mode 1920x1080 --rate 144 --primary
xrandr --output HDMI-1 --mode 1920x1080 --rate 120 --right-of DP-1

Setting the mode and rate for HDMI should™ not be necessary, since it's the default anyway.
You can also https://wiki.archlinux.org/title/Multih … _xorg.conf and since you mentioned nvidia, make sure there's no static config in /etc/X11/xorg.conf (nvidia-settings allows to generate them and it's "metamode" will nuke anything else)

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