https://bugs.freedesktop.org/show_bug.cgi?id=77892
Priority: medium Bug ID: 77892 Assignee: dri-devel@lists.freedesktop.org Summary: [RV635] when GPU locks up, reset happens but X is unresponsive except mouse Severity: critical Classification: Unclassified OS: Linux (All) Reporter: shawn.starr@rogers.com Hardware: x86-64 (AMD64) Status: NEW Version: unspecified Component: DRM/Radeon Product: DRI
For a long time now, I don't recall which 3.x broke this but there's been many changes since and now, when the GPU does randomly reset, the display goes blank, X display is restored, but I can only move mouse, cannot interact with X.
Can someone point me to some debugging approaches to see if there's some lock being held somewhere thats causing this?
I am able to ssh into the laptop so, this seems to point to some sort of lock thats not released.
Bisecting radeon drm will be difficult if I have to start from near the beginning of r600g drm support.