https://bugzilla.kernel.org/show_bug.cgi?id=206387 Bug ID: 206387 Summary: amdgpu with amdgpu.dc=1 and multiple monitors on DisplayPort keeps changing devices Product: Drivers Version: 2.5 Kernel Version: 5.5.0 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@xxxxxxxxxxxxxxxxxxxx Reporter: alexpereira@xxxxxxxxxxx Regression: No Hi, I have an amd rx580 with 2 monitors connected by display port. The 2 monitors are the same brand and model. When using the amdgpu driver with amdgpu.dc=0, the device names ( DisplayPort-2 and DisplayPort-3 ) stay consistent, but when using amdgpu.dc=1, the device names change randomly ( or at least not consistent ). They sometimes are DisplayPort-4 and DisplayPort-5 , sometimes DisplayPort-4 and DisplayPort-6, making me have to configure Xorg at every boot ( to correct the placement of the monitors, which is left and which is right ) and configure kde plasma and sway ( because they base their configurations on the device names ). Currently I switched to using amdgpu.dc=1 because amdgpu.dc=0 locks computer after a wake up from suspend ( with amdgpu.dc=1 it does not ). Thanks ! -- 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
