Post #3426481

2026-06-27 01:55 UTC

Hey #Linux users, I'm running into an annoying issue where my system randomly just soft-locks, but only on Gentoo. It didn't do it on Debian-based systems or Arch-based systems for me. (What little I used of Fedora also didn't do it, but I'm not sure if I used in long enough.) It's a bad lock, but it's a soft-lock, so if I hold ctrl+alt+F3 or whatever for about two or three minutes, eventually I get to a console and can reset. The GUI never returns. The specific error seems to be "flip_done timed out" from amdgpu. My searches so far have yielded claims that disabling variable framerate and adding KWIN_DRM_NO_AMS=1 and KWIN_DRM_NO_DIRECT_SCANOUT=1 stops the freezes and so far it seems to have done so, but I really want variable framerate back... Again, only in Gentoo...

Replies (1)

@nazokiyoubinbou@urusai.social 2026-06-27 02:04

Two extra things of note. First, I tried a different kernel too. Specifically Zen which is using 7.0.12 right now, so it's not just the 6.18.35 kernel from the distribution. Second, I tried using those variables without actually disabling variable refresh rates and still got a softlock. So far after turning off variable refresh rates I haven't had a soft lock, so it definitely seems to be the deciding factor, or at least a deciding factor. EDIT: Woops. Those variables weren't correctly set. Apparently env-update is not recursive (it and the devs just think it is) and the /etc/environment.d directory is useless. I'll have to retest with VFR on now that the variables are correctly set. I don't have the spoons to do so just atm though...

Open ##3466573