I'm suddenly getting 1-2 FPS instead of 60+ in games. I haven't changed anything (on purpose). Where can I start to diagnose?

Bill

10/19/22, 5:00 PM

I've got a really odd issue:

Today while using my Machine (Ubuntu 20.04 on Intel i5 + AMD R9390X) I noticed that I could no longer do audio-over-displayport. I tried pulseaudio -k and re-plugging the cable to no avail, so I rebooted.

Then after a reboot the resolution was locked at 1024x768. No other options in settings and any attempt to do xrandr --newmode failed with an error about gamma levels: xrandr: Failed to get size of gamma for output default

I did some googling and found I could edit /etc/default/grub and set GRUB_GFXMODE=3440x1440. Now I have my native resolution back, but it's also the only resolution option in settings, which makes me think that's a bit of a hacky fix. I also still don't have audio-over-displayport.

Finally, games now just don't run. Minecraft gets 1-10FPS instead of 60+, and 'golf with your friends' gets < 1 instead of 100+

I have a dedicated GPU and that's what's connected to my monitor. I haven't changed anything on purpose lately to do with GPUs etc. I installed libolm-dev as part of element-desktop, but that's the only change since last reboot.

If anyone could suggest next steps in diagnosing the problem I'd greatly appreciate it.

Thanks in advance, Bill

Update

The output of sudo lshw -c video looks wrong too:

*-display UNCLAIMED       
       description: VGA compatible controller
       product: Hawaii XT / Grenada XT [Radeon R9 290X/390X]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 80
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list
       configuration: latency=0
       resources: memory:e0000000-efffffff memory:f0000000-f07fffff ioport:e000(size=256) memory:f7e00000-f7e3ffff memory:c0000-dfff

Why unclaimed?

0 + 0

xrandr

graphics

display-resolution

amd-graphics

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: I'm suddenly getting 1-2 FPS instead of 60+ in games. I haven't changed anything (on purpose). Where can I start to diagnose?

TH: ทันใดนั้นฉันได้รับ 1-2 FPS แทนที่จะเป็น 60+ ในเกม ฉันไม่ได้เปลี่ยนแปลงอะไร (โดยตั้งใจ) ฉันจะเริ่มวินิจฉัยได้ที่ไหน

RO: Primesc brusc 1-2 FPS în loc de 60+ în jocuri. Nu am schimbat nimic (intenționat). De unde pot începe să pun diagnosticul?

RU: У меня вдруг 1-2 FPS вместо 60+ в играх. Я ничего не менял (намеренно). С чего начать диагностику?

VI: Tôi đột nhiên nhận được 1-2 FPS thay vì hơn 60 trong các trò chơi. Tôi đã không thay đổi bất cứ điều gì (về mục đích). Tôi có thể bắt đầu chẩn đoán ở đâu?

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