https://bugzilla.kernel.org/show_bug.cgi?id=83461
Bug ID: 83461 Summary: hdmi screen flicker/unusable Product: Drivers Version: 2.5 Kernel Version: 3.15, 3.16 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: blocking Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: kb@spatium.org Regression: No
Since kernel 3.15 I cannot get a stable video output on HDMI. The screen flickers and blinks, and my dmesg is full of these:
sound hdaudioC1D0: HDMI ATI/AMD: no speaker allocation for ELD
The video card in question is: Advanced Micro Devices, Inc. [AMD/ATI] RS880 [Radeon HD 4200]
Downgrading to 3.14 seems to remove the issue.