https://bugzilla.kernel.org/show_bug.cgi?id=188091 Bug ID: 188091 Summary: Resume with two monitors, second monitor is not resumed until VT switch Product: Drivers Version: 2.5 Kernel Version: 4.9 rc5 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@xxxxxxxxxxxxxxxxxxxx Reporter: gwhite@xxxxxxxxxxx Regression: No This is for AMDGPU. I have an RX470 with two monitors attached via DP. After a long suspend, when one of the monitors has apparently gone into a deeper sleep state, it takes one of them longer to wake. When this happens, the second monitor is not detected and will not be seen until I switch to a VT and then back again. Here's what I see in dmesg before the switch: 18887.893100] [drm:amdgpu_atombios_dp_link_train] *ERROR* displayport link status failed [18887.893103] [drm:amdgpu_atombios_dp_link_train] *ERROR* clock recovery failed [18888.070075] [drm:amdgpu_atombios_dp_link_train] *ERROR* displayport link status failed [18888.070077] [drm:amdgpu_atombios_dp_link_train] *ERROR* clock recovery failed Again, after I switch to a VT and then back again, all is well. -- 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
