Arc 770: GPU randomly not detected anymore by games

[peorg]

Hi, I have noticed that my Arc 770 GPU will sometimes randomly stop to be detected by games with similar error messages. League of Legends for example will work just fine for hours and then suddenly refuse to load into matches (Launcher works fine) because it "couldn't initialize graphics device". Other games will specifically say that they cant detect a DirectX11/12 compatible GPU, eventho they usually run without issues.

These are the games that I have experienced this problem with so far:

- League of Legends (DX11)

- Ozymandias (DX11)

- PUBG (DX11)

- Blacktail (DX12)

- Hogwarts Legacy (DX12)

Im fairly sure that every other GPU/DX dependent games would throw the same error. The issue has persisted with every driver since I own the card (31.0.101.4032 up to the beta 31.0.101.4123 one, which I currently use). It very much looks like a driver-related problem to me, as dxdiag will still report the card as present without issues, even when games can't detect it anymore.

DXVK (which makes games from DX9-DX11 run via the Vulkan API) will not alleviate the problem either, I tried that with League of Legends, assuming that maybe only DX-reliant games would be affected. I still get the same error when trying to load into a match. Prior to that Ive made sure that DXVK is indeed working with League by calling up a live metrics overlay via a conf file before the issue occurred.

I also sometimes randomly get short blackscreens, that last maybe 2-3 seconds and can also occur when no game is running. There does not seem to be a clear correlation to the "GPU not detected" issue.

Once the "GPU not detected" problem appears, I can sometimes temporarily fix it by "updating" the graphics driver via the device manager (basically reinstalling the current driver). Win+Ctrl+Shift+B does not work. Most of the time I end up having to reboot the system to get the GPU recognized again. I was not able to somehow reproduce the issue, it just seems to randomly appear.

Another odd thing I have noticed is that (re)installing the Arc shortly resets all or at least some USB devices connected to my PC (for example my keyboard will flare up, reconnect and reload its LED configuration just like when I boot up the system) - is that supposed to happen?

My system:

AMD Ryzen 3700X (= no IGPU present on the system)

16 GB DDR4 RAM / 3200 MHz

ASRock X570 Pro4 Mainboard (with latest Bios v4.50 released in October '22) - ReBAR is enabled

Intel Arc A770 LE 16 GB (in case it matters: the cable for the RGB controller is not plugged in, since I have no need for that feature)

Windows 11 Pro with all current updates (Build 22621.1105)

[peorg]

Some additional info: I discovered this thread from 2022 where the Iris Xe Max notebook GPU keeps losing DirectX levels
https://community.intel.com/t5/Graphics/HELP-Intel-Iris-Xe-Max-Graphics-DirectX-feature-levels-keep-on/td-p/1356383

So the devs going after that bug should probably look into driver aspects that are shared between the Xe Max and the Arc dGPUs. One similarity that I can report is the tendency of blackscreens occuring while watching video content in Chrome, which sometimes - but not reliably - are preceding the disappearence of DirectX feature levels.

Other than that I dont see a lot that the affected system would have in common with mine, apart maybe the display (which in my case was built by Acer).

[Scarba]

Having the exact same issue. Out of the box ho spectre build. Updating the graphics card for me how ever caused sporadic system freezes that could only be remedied by locking my screen