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ublue-os / bazzite

Bazzite is a custom image built upon Fedora Atomic Desktops that brings the best of Linux gaming to all of your devices - including your favorite handheld.
https://bazzite.gg
Apache License 2.0
3.3k stars 183 forks source link

Possible to overclock LCD display? #1287

Closed Tobe95 closed 1 week ago

Tobe95 commented 3 weeks ago

Just switched from Steam OS to Bazzite and loving it so far.

One thing that isn't working though is the display overclock to 70 hz.

With the beta release of Steam OS 3.6, Valve for some reason took away the option to disable the "unified frame rate control" under display/developer settings, needed for the overclock to work. Since Bazzite is using the same packages or even newer than Steam OS 3.6, the solution from #707 no longer applies unfortunately...

Is there currently any other way or fix to overclock the LCD display?

Globetrotter129 commented 2 weeks ago

is there any benefits to having bazzite vs steam os?

Tobe95 commented 1 week ago

is there any benefits to having bazzite vs steam os?

I think it depends on the use case. Bazzite includes lots of features by default, that on Steam OS you have to tinker with to get them working.

For example Btrfs instead of Ext4 as filesystem, which saves lots of disk space and has deduplication. VkBasalt (the Linux equivalent of Reshade) and ryzenadj come pre-installed, and you get up-to-date Kernel and Mesa versions which sometimes include performance improvements.

Also Bazzite features a 1000 HZ kernel tickrate which is said to slightly save power.

Just check the main page of this repository, it lists a lot of the features, you can also use Gnome instead of KDE as desktop environment which was made with touchscreen in mind.

Tobe95 commented 1 week ago

To get back to my problem... I've actually found a solution.

The Chimera OS fork of gamescope (which Bazzite uses as well), added an extra environment variable to set a custom refresh rate. This is already used in Bazzite to define the refresh rate range for some Handheld devices, not sure why this is not documented anywhere.

By adding CUSTOM_REFRESH_RATES=30-69 to /etc/environment you can actually increase the refresh rate on Steam Deck LCD as well. No need for STEAM_DISPLAY_REFRESH_LIMITS or GAMESCOPE_OVERRIDE_REFRESH_RATE.

The only difference I found compared to Steam OS 3.5 and older gamescope versions is, that my screen only goes up to a maximum of 69 Hz instead of 70.

Trying 70 Hz actually results in the screen going crazy, the colors being washed out and some tearing-like behaviour. If I remember correctly even prior on Steam OS, the display would never exactly reach 70 Hz but only something like 69.7 Hz. I suppose newer versions of gamescope just handle this differently now, hence the issues with 70 Hz.

Closing this as solved.