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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Testing if VRR is active and working (discuss.tchncs.de)

submitted 6 months ago* (last edited 6 months ago) by Sentau@discuss.tchncs.de to c/linux@lemmy.ml

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I recently updated to fedora 40 and enabled the experimental setting to get VRR running. But I am an idiot who has been playing at frames rates between 30-60 on screens without VRR for almost all of my life so I can't even know if VRR is actually working or not. Is there some rest I can run to see if VRR is functional¿? If not, which parts of the game should I concentrate to see the difference between VRR and no VRR¿?

Edit : I am on a laptop with the integrated screen being the one being used. I am currently using ublue-main

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[–] taaz@biglemmowski.win 8 points 6 months ago* (last edited 6 months ago) (1 children)

https://github.com/Nixola/VRRTest

Also afaik it only works in fullscreen on Linux (and in programs that support it).

[–] Sentau@discuss.tchncs.de 1 points 6 months ago (3 children)

I am on ublue which is immutable. Do appimages work normally on immutable distros¿?

[–] acockworkorange@mander.xyz 3 points 6 months ago (1 children)

Supposedly.

[–] Sentau@discuss.tchncs.de 1 points 6 months ago

Thanks I will try it then

[–] pipe01@programming.dev 1 points 6 months ago

Probably would be easier to download LÖVE and run it with that

[–] baru@lemmy.world 1 points 6 months ago

An appimage should run where, normally you'd put that in your home directory. The immutable bit is outside of your homedir.

[–] azvasKvklenko@sh.itjust.works 2 points 6 months ago

Remember to enable vsync in game for vrr to work. Use Mangohud to see performance details. With VRR working properly, your FPS should fluctuate as you play the game, byt the feeling should be similar to having smooth vsync-ed game locked to your refresh rate with no stuttering. You can compare that to when VRR is disabled to see if it’s different. You should see the difference with bare eye.

Also VRR Test as others mentioned

[–] sgibson5150@slrpnk.net 1 points 6 months ago (1 children)

Will your display device or associated equipment tell you? My home theater receiver has a signal info button that will display the refresh rate or VRR, if enabled. Also has HDR mode if any, as well as audio input & output formats.

[–] Sentau@discuss.tchncs.de 1 points 6 months ago (1 children)

Sorry I should have mentioned that this is the integrated screen of a laptop

[–] sgibson5150@slrpnk.net 1 points 6 months ago

Alas. Hope you find a way to verify your set up!