this post was submitted on 12 Jul 2023
10 points (100.0% liked)

Linux Gaming

14926 readers
1 users here now

Discussions and news about gaming on the GNU/Linux family of operating systems (including the Steam Deck). Potentially a $HOME away from home for disgruntled /r/linux_gaming denizens of the redditarian demesne.

This page can be subscribed to via RSS.

Original /r/linux_gaming pengwing by uoou.

Resources

WWW:

Discord:

IRC:

Matrix:

Telegram:

founded 1 year ago
MODERATORS
[email protected]
10
Mixed refresh rates question (lemmy.world)
submitted 1 year ago by [email protected] to c/[email protected]
14 comments fedilink hide all child comments
 

Hello everyone. I've read some posts before about Linux behaving poorly when using multiple monitors that have a different refresh rate.

Does anybody here know if X11 + AMDGPU + Mesa + Gnome handles this correctly? I'm thinking of getting a high refresh rate monitor (120hz+) while keeping my secondary at 60hz.

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 6 points 1 year ago* (last edited 1 year ago) (1 children)

When I was on X11 (kde), my 144hz monitor would frequently feel like it was operating at 60hz but I could never figure out what the cause was. I used to turn off my 60hz monitor before gaming as a workaround. I quickly switched to wayland and haven't had to deal with it since.

[–] [email protected] 5 points 1 year ago

I have a 144Hz between a 60 Hz and a 75 Hz monitor.

It's not perfect, but does the job decently. In your ~/.profile:

export KWIN_X11_REFRESH_RATE=144000
export KWIN_X11_NO_SYNC_TO_VBLANK=1
export KWIN_X11_FORCE_SOFTWARE_VSYNC=1

If you enable TearFree, it makes the lack of proper vsync less noticeable and fixes the tearing caused by software vsync.

OP's probably SoL for Gnome though, because Gnome.