Ah, now this is interesting. When we troubleshoot, we do examine all hardware/software changes before an issue presents itself.
I’d start with:
UMA_GAME_OPTIMIZED
sudo grubby --update-kernel=ALL --args=“amdgpu.sg_display=0”
Rebooting each time.
If none of these resolve it, it may be ticket worthy at that point.
Also reporting in on this issue. I have a machine with the exact same configuration and OS version reported by Cheng (Fedora 39 6.6.4-200 and FW v3.03 on 13" AMD, mine was a Batch 11), experiencing a blank white screen occasionally on wake.
Some notes: The system doesn’t seem to be locked up.
The cursor still appears and can be moved around. The cursor will change appropriately according to the content that should be on the screen, e.g. to drag the corner of a window.
Can still access a vterm with CTRL + ALT + FX to reboot.
Is this the same for you @Cheng?
It was intermittent, so hard to test, but will set amdgpu.sg_display=0 and let you all know if I experience further issues too.
@variegated.vanilla I haven’t tested the vterm. IIRC, I do remember that I can see the cursor moving, and I believe the top bar remains black, with some white squares where some icons supposed to be.
Do you mind sharing your exact config (CPU, disk, ram) to see if it helps framwork teams troubleshoot this?
@Cheng Thanks! I suspect I have the same issue as you. That said, unlike what you describe, my screen is entirely white with only the cursor visible.
My machine is configured exactly as yours is described in your original post. Same OS, kernel, RAM, etc. I am using a Batch 11 DIY machine with parts that were provided by Framework.
I’ll try to keep quiet for now so as to not to pollute this thread further with potential confounding information. 
same configuration, same issue, have just run the command above - will advise if it works or not.
I had the same issue. As per this thread, I changed UMA_GAME_OPTIMIZED in the BIOS. So far (1 day) the issue seemed to have gone away. I stress ‘tested’ it by running a couple of games where the issue popped up the most reliantly.
Do keep us posted.
I have the same framework computer (AMD fw 3.03) and the same issue whit fedora 39. I am going to keep following this conversation.
After I have set amdgpu.sg_display=0 kernel parameter, the issue never came back. Maybe you want to do that?
Thank you @Cheng I just did that and I had no problem today. I hope this fixes the issue permanenty!
Is there a particular kernel version in which this is or will be fixed?
All those affect, for proper tracking of this.
Please confirm the following:
UMA_GAME_OPTIMIZED is enabled in the BIOS. (Yes/No)
sudo grubby --update-kernel=ALL --args="amdgpu.sg_display=0" (Yes/No)
BIOS 3.03 (Yes/No)
Is this happening while gaming or watching videos/browsing? (Gaming/Browsing/Videos)
Kernel version on Fedora Workstation 39 (6.6.12 or which?)
(Please respond in this format so I am can get straight to the common details)
I have recently switched to silverblue, the issue did not occur during setup phase (with installation of large packages in distrobox, many rebasing etc.). But come back immediately after I started editing large documents in vscodium. So this align with the assumption that this is a (video) memory issue.
Here is the setup when the bug happended:
I have now set the kernel argument amdgpu.sg_display=0, and I will be back if the issue occurs again.
Appreciate the update. I have not needed this myself, but it appears to be one of those issues that affects some folks and not others. There is another bug coming up that we are getting in front of the Fedora team. There is an active patch for it (kernel 6.7.x), but I am working to get this sorted with Fedora shortly.
Just chiming in my own experience here. Recently got a new Framework 13, didn’t check BIOS versions or any configurations. Merely installed Fedora 39.
Experienced a white screen when I’d full screen a game, and when trying an external display.
I tried the grubby fix: grubby --update-kernel=ALL --args="amdgpu.sg_display=0", and now all is well.
Had the same issue that others have reported in this thread. My screen would consistently (read: every time) go white after I resumed from suspend. This was on a new Framework 13 AMD 7840 with Fedora 39 (6.7.11-200.fc39.x86_64), BIOS 03.03, and whatever UMA_GAME_OPTIMIZED defaults to.
When resuming from suspend, the display would flicker and I could see the desktop when moving my cursor but I could ctrl+alt+f3 to and the flickering and white screen would disappear. I could then restart gdm systemctl restart gdm to recover without restarting fully.
Ran the grubby sudo grubby --update-kernel=ALL --args=“amdgpu.sg_display=0” fix and it has immediately worked. I can now suspend and wake without any display issues. Hopefully this remains the case and it’s not just a coincidence.
Hi,
I had the white screen flickering after a suspend lid closed (about 1 hour). I got through the white screen by moving the cursor as it would make the screen blink so I could see a bit of interface and go from there.
Looks like what Mattias has experienced.
I’ll run the grubby command now.
Cheers
Framework 13 AMD 7640u
UMA_GAME_OPTIMIZED is enabled in the BIOS. -> No
sudo grubby --update-kernel=ALL --args="amdgpu.sg_display=0" -> No
BIOS 3.03 Yes
Is this happening while gaming or watching videos/browsing? -> Long suspend lid closed.
Kernel version on Fedora Workstation 39 (6.6.12 or which?) -> Linux 6.8.4-200.fc39.x86_64 x86_64 Fedora Workstation 39
Same issue coming from lid closed (suspend) and also YouTube when made full screen. Ran the sudo grubby --update-kernel=ALL --args=“amdgpu.sg_display=0” several days ago and it is fixed now!
Thank you!
For other Linux distros that have this bug and are not Fedora-based, you can add amdgpu.sg_display=0 to kernel parameters (accessed by pressing e if using grub, see this Arch wiki page for other setups.)