When starting D4 in the Bnet window, a warning appears that “The GPU you are using is not supported. You may experience graphical bugs, instability, or poor performance while using it.” This issue only appeared after this week’s update (version 1.0.3.42677). Since then D4 has been very stuck, but before that the game ran smoothly on my computer.
Same here. Any solutions?
Also getting this message after the new patch and the game won’t start. It’s been running smoothly since launch on my GTX 1050, so it’s definitely something with the patch.
Have you tried the suggestions in this blue post? I know it’s about resetting your gpu setting to default, but maybe it will help.
Edit: this isn’t the blue post I was originally looking at, but it’s better. 
Just to add to this, for this particular problem, they can also try using this:
-bypassgpucheck
This has to be entered in the Bnet launcher, under game settings for Diablo IV. In there they have a check box for Additional command line arguments. Check the box and add that above to the empty box.
It will then skip checking the GPU.
If it doesn’t like the driver, it can still have other issues, but it should let it try to run.
I used this trick to get Diablo IV to run on an older version of the driver without issue with the AMD test gaming box I built the other week.
I tried it, none of it worked for me, but thanks for the info. 
I have this problem too, it seems that the game runs on my intel GPU instead of nvidia. This only happens after the latest update. I tried setting to high performance in window’s graphic setting and nvidia control, reinstalling nvidia driver but none worked
I had the same problem on my Desktop (was working fine earlier today). Except it gives a second error after, and doesn’t even try to load. I logged into my laptop (everything worked fine a couple nights ago), and got the same first message, but it at least loads the game. Unfortunately after logging in, it maxes out at 6-7 FPS.
Tried doing the -bypassgpucheck and it doesn’t seem to change anything on either machine.
So either Blizzard or Nvidia must have changed something within the last 10 hours, although it sounds like it started failing for you all a little earlier. Wondering if their hotfix for this issue, broke it for myself and others.
I’m trying to look into this.
Quick question, what version of Windows are you all running? 11?
And all of you have an Intel onboard along side an Nvidia?
I have the same problem since 30/06 patch…
Game was working perfectly fine before.
Well.
I will say the update to the patch is weird.
I hadn’t updated my Blizzard games on my laptop for a few days, so I had updates for OW, D4 and HS.
Both OW and HS installed fast, downloaded their updates in seconds (couple minutes for the 8GB update for HS).
But D4? Took nearly 10 minutes to download the 200MB update. Not only that, it crashed the bnet out of being logged in 3 times!
I noticed even on the desktop earlier today it was acting weird, but did update.
Very interesting.
Update.
Finished updating the game, rebooted the laptop. Game plays… Fine. No crash, no errors.
MSI GF63 Thin UD11. i5 11th gen, 3050Ti, 32GB DDR4, Samsung 1TB NVME. 11 Home.
*shrug
Played with settings, can see where you could select Nvidia or Intel now in game settings. I did not change it though, but I could and see what happens I suppose, but know that someone else did this and it broke the game. Will think about it for testing purposes, but not tonight.
Good luck.
Yeah, I didn’t realize there is an in-game setting, changed it and the game works fine now. Thanks
Happy to hear it worked for you guys, still nothing for me. Hope blizzard can fix this. My game has been working fine until this patch.
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My Desktop is Win 10, my Laptop is Win 11.
Ahhh, I never noticed there was an adapter option either. Mine had switched to my random onboard Intel on the Laptop, and it worked fine after switching to my actual graphics card. Thank you! Can’t even get into the game menu for my Desktop to check though, so will have to keep trying things on there.
Success! I disabled the onboard video card in my device manager, and was able to get the desktop working. Thanks for pointing me in the right direction. Not sure what they changed to make it want to use the onboard card, but glad to have a work around.
Disabling the onboard video card worked for me as well. Thank you!
Keep in mind, those of you on laptops, might want to not have the intel disabled, this will use less power than the nvidia, so when it comes to battery use, it will limit your run time a lot.
I would disable it, make the change in game to be on Nvidia then maybe enable it back on.
Also check the Settings → System → Display → Graphics.
Under here in the list of Apps, look for Diablo IV. If its not here, add it. (Browse to the Diablo IV install folder, find the Diablo IV.exe file) Then once added, go to options on it, and set it to use Nvidia.
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Wow thank you for this thread. I was getting the “unsupported GPU” message after the patch and also did not know there was an in-game setting that had switched my video adapter over to the Intel adapter on my laptop instead of using the 3070 nvidia…logged in, made the switch, applied and now the game is fine. Thanks again!
Was any proper solution found for this problem? i tried to lunch D4 after patch 1.1 before sesons starts and to my surprise i got warrning the “GPU is not supported” . I was running game no problem on my GTX 1050 last time. It does look like diablo is forcing my laptop to use integrated Graphics card i tried installing/reinstalling drivers, using nvidia panel to make diablo use my 1050 nothing worked the only thing somewhat working was turning off my integrated card but even then game was running in less then 10 fps.
I know there is option to just change GPU used after you login to Diablo but i can’t even do that when it is forcing usage of integrated card.