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See the linked URL - it's a firmware bug, fixed with https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=a26e413e7481d12ab5a53f77e0cdde2d5be937d8. I see it since the last Fedora 42 update on my system. Can we backport the commit? It's quite a severe issue Reproducible: Always Steps to Reproduce: Just move the cursor around on an affected system Actual Results: Randomly but rather frequently, a second cursor shows, and the display area below the cursor flickers gray. Expected Results: No flicker Additional Information: It can be worked around by forcing a software cursor
I have the same issue since I updated earlier today. It seems to work fine when I use 6.14 kernel but starts happening on 6.15.
Can confirm issue; 6.14 kernel works fine, 6.15 kernel has gray rectangle flicker below cursor. Dual monitor setup; one monitor 1080p, the other 4K. Occurs in both XOrg and Wayland. AMD GPU 7900 XTX.
Can confirm as well. For me there is also occasional severe flickering of the entire screen though. Booting into a 6.14 kernel seems to work around this issue. I'm using Wayland on a Radeon 7900 XTX.
(In reply to Dennis Jacobfeuerborn from comment #3) > Can confirm as well. For me there is also occasional severe flickering of > the entire screen though. Booting into a 6.14 kernel seems to work around > this issue. I'm using Wayland on a Radeon 7900 XTX. Does downgrading the firmware also fix the issue?
For me, downgrading just linux-firmware to 20250311-1.fc42 on its own does not fix it. I also have to use kernel 6.14 as well to avoid the glitches.
(In reply to Xaver Hugl from comment #5) > For me, downgrading just linux-firmware to 20250311-1.fc42 on its own does > not fix it. I also have to use kernel 6.14 as well to avoid the glitches. The package that contains the GPU firmware is amd-gpu-firmware, the base linux-firmware contains other generic firmware so if you just did that I wouldn't expect that to fix it.
Ah, I didn't know it was split. Oddly enough, downgrading amd-gpu-firmware also doesn't fully fix it. Either I'm doing something wrong, or there's also a kernel bug.
there's probably kernel bugs too, but did you rebuild your initrd to ensure the right firmware is in it?
Ah, that's what I was missing, I thought installing the package did that already. After rebuilding the initrd, downgrading does indeed fix it.
The kernel package does that
On my AMD 5600G system which has integrated graphics, running F42 KDE, Wayland and kernel 6.15.3-200. I cannot repro the issue. If that helps.
FEDORA-2025-7feed8b25a (kernel-6.15.4-200.fc42 and linux-firmware-20250627-1.fc42) has been submitted as an update to Fedora 42. https://bodhi.fedoraproject.org/updates/FEDORA-2025-7feed8b25a
FEDORA-2025-f6f8526a43 (kernel-6.15.4-100.fc41 and linux-firmware-20250627-1.fc41) has been submitted as an update to Fedora 41. https://bodhi.fedoraproject.org/updates/FEDORA-2025-f6f8526a43
FEDORA-2025-7feed8b25a has been pushed to the Fedora 42 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2025-7feed8b25a` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2025-7feed8b25a See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
FEDORA-2025-f6f8526a43 has been pushed to the Fedora 41 testing repository. Soon you'll be able to install the update with the following command: `sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2025-f6f8526a43` You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2025-f6f8526a43 See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
I can confirm that the above update fixes this issue for me.
I can also confirm that the above update fixes this issue for me.
FEDORA-2025-7feed8b25a (kernel-6.15.4-200.fc42 and linux-firmware-20250627-1.fc42) has been pushed to the Fedora 42 stable repository. If problem still persists, please make note of it in this bug report.
FEDORA-2025-f6f8526a43 (kernel-6.15.4-100.fc41 and linux-firmware-20250627-1.fc41) has been pushed to the Fedora 41 stable repository. If problem still persists, please make note of it in this bug report.
Hi, I'm running Linux fedora 6.15.4-200.fc42.x86_64, with the following system specs; - AMD Ryzen™ 9 7950X × 32 - AMD Radeon™ RX 7600 - Dell UltraSharp U4025QW connected with DP And on 120Hz I still get a duplicated flickering cursor on the left half of the screen, on 60Hz it is gone.