Steamdeck UI has extremely low FPS when above 720p

[jessicamaybe]

Your system information

• Distribution (e.g. Ubuntu): Arch Linux
• Opted into Steam client beta?: Yes
• Have you checked for system updates?: Yes

Please describe your issue in as much detail as possible:

Running steam with gamepadui has very low FPS when rendering above 720p. The low framerate is mainly on the "home" screen. This is an issue on steam deck as well.

Steps for reproducing this issue:

1. opt into steamdeck steam branch
2. set resolution above 720p using gamescope
3. launch steam using gamepadui

[Rosentti]

This is a web component issue, as I experience the same issue if I open steam's library page maximized.

[Bitwolfies]

I have the same issue with the new offical beta rollout of the ui, is there any fix? It doesn't seem to affect any of my friends.

[ThisNekoGuy]

The new GPU acceleration update (1667318582) doesn't seem to improve this at all, just a heads up; even if you try to force it with the -cef-force-gpu arguement

[ThisNekoGuy]

Correction: At 1080p, (personally) this doesn't seem to be much of an issue but it persists at 4K (3840x2160)

[papamikey]

its really bad at 1440p as well. Very strange that this happens on Linux but not Windows. On Windows 10 it renders perfectly at 1440p at my max refresh rate. Also in the beta we have right now, it still persists. Not only that, but the overlay crashes often because of this lag I'm assuming. I hope this gets resolved soon, it's been a problem for almost a year!

[trinque]

Yep, this is currently pretty unusable in Big Picture. I'm running on Linux with a 3090. This probably shouldn't have been shipped to production in this state.

[kzdixon]

It's been working much better now in the beta updates I've been using (with GPU acceleration enabled on AMD/7900 XTX at 4k).
It does seem to crash/become unusable very often though; Does this every time after switching virtual desktops on i3wm and seems to only get a few toggle uses out of it when trying to edit a Steam Controller config midgame.
Scaling for the gamepad overview is also pretty broken at 4k.

[trinque]

Valve, any commentary? This thing's really not working well for users with 4k TVs on Linux.

[Rosentti]

Or people with a 4k monitor with steam maximized with the default library view.

[pquerner]

Confirming. Still an issue on 1716584667. (from Steam > Help > About Steam)

Nvidia 3080, X11, 550 drivers (dkms) on KDE Plasma 6.0.5, 6.9.3-arch1-1.