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FSR / NIS performance degradation #1307

Open BriaN890501 opened 7 months ago

BriaN890501 commented 7 months ago

Your system information

Please describe your issue in as much detail as possible:

This occured after updating to 3.5 stable and persisted on 3.5.7. I'm using 4K TV docked, upscaler set to FSR, emulator (PCSX2) and some other steam game locked itself to 15 fps with audio lag. changing upscaler to NIS resulted in similar perforamance lock, linear and integer seem to work fine.

Steps for reproducing this issue:

  1. connect deck to a higher resolution monitor (to make gamescope fsr work)
  2. set upscaler to FSR or NIS
  3. observe significant performance loss (e.g. 15 fps lock, audio lag)
Ponjen commented 7 months ago

Oh, I wonder if that's what was happening to me with Baldur's Gate 3 recently. Was playing docked, and would notice random spikes to 10-15 FPS. Like, spikes that would last a good 5 seconds. Normally when BG3 spikes, it's at least consistent (heavy area, shadercache, etc.) and is instant. But this would happen randomly and last quite a while. Didn't think about disabling FSR.

Ponjen commented 7 months ago

Can confirm I have the same issue. Tested with different games. All of them immediately drop to 15-20 fps when FSR or NIS is enabled. Only while docked. When in handheld mode, it works as expected.

jams3223 commented 6 months ago

Can confirm I have the same issue. Tested with different games. All of them immediately drop to 15-20 fps when FSR or NIS is enabled. Only while docked. When in handheld mode, it works as expected.

Does it still happen in the SteamOS Preview Channel?

krillme commented 6 months ago

I have the same problem and it still occurs on the preview channel.

Aboud2195 commented 6 months ago

I'm also having the same problem on the preview channel.

Stabbyson commented 2 months ago

Same issue on Stable and Beta channels. As others have said using it in handheld mode works as expected but the moment FSR / NIS is turned on regardless of sharpness values the games hard lock to 15-20 FPS.

Also worth noting that the CPU/GPU load being low or high changes nothing, it will always lock FPS.