https://bugzilla.kernel.org/show_bug.cgi?id=195743 Bug ID: 195743 Summary: Screen flicker and instability on hdmi monitors with AMDGPU, EDID problems Product: Drivers Version: 2.5 Kernel Version: 4.10.13 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@xxxxxxxxxxxxxxxxxxxx Reporter: keziolio123@xxxxxxxxx Regression: No Hi, I want to report the bug described in this forum thread: https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/open-source-amd-linux/947352-recent-extremely-annoying-multimonitor-bug-don-t-know-where-to-report I'll copy the relevant part for convenience: "basically it acts like monitors are unplugged and plugged back in, and often the detected EDID is wrong, like dmesg suggests, wrong resolutions are found and I remain with one monitor right, one in 1024*768 and the other one off, not even detected. This happens only with HDMI monitors, the one DVI monitor that I have seems to always work reliably, and swapping them has no effect, the left one seems to have always the same problems (wrong resolution). In the video, the center monitor is DVI, the other two are identical, connected with hdmi and are affected by the problem. I'm 100% sure everything was working right until some weeks ago, never had any issues with xonotic or cheese in years, i've reproduced also with serious sam fusion beta GPU is a sapphire RX480" Here's a youtube video of the problem: https://www.youtube.com/watch?v=Tfu_pxRVHag The system now is basically unusable with multiple monitors and 3d apps, with continuous flicker -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
