Greetings. Replying as an user – I am not a member of the Debian kernel team:
Homer Haddock - 12.08.26, 20:14:37 CEST: > I have a laptop equipped with an AMD Ryzen 5 3500U using integrated > graphics. After installing the latest kernel from Testing > (7.1.7+deb14-amd64) I noticed a problem while using it. > At first it was minor glitches of about 5% of the screen being replaced > with random blocky colours for just long enough to be noticed but would > disappear before it impacted anything. > > Recently it spiked to 75% of the screen with multiple flashes in short > succession. I checked btop and it reported high CPU usage but low load > average. So it seems as though a lack of available CPU impacts this > bug. > > I would normally figure out this problem myself but I couldn't find any > helpful information besides bug #1093084. I saw something similar with vanilla 7.1.7 kernel – self-compiled – on my ThinkPad T14 AMD Gen 5 with integrated AMD Radeon 780M GPU. I did not see the 75% case, but under usual workloads the CPU is not fully utilized on this system. It went away with vanilla 7.1.8. Can you try with 7.1.8 once the Debian kernel image for that becomes available? I use firmware-amd-graphics 20260622-1 package. Best, -- Martin
