https://bugzilla.kernel.org/show_bug.cgi?id=200695 babgozd (babgozdtb@xxxxxxxxxxx) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |babgozdtb@xxxxxxxxxxx --- Comment #38 from babgozd (babgozdtb@xxxxxxxxxxx) --- (In reply to Adam from comment #37) > As several comments mention different behavior between the different > connector types I found a spare DVI cable and tried connecting to the same > monitor via that input and it worked! So once logged in I plugged in the > HDMI cable and switched input and it worked just fine (monitor was glitchy > at first but once I disabled DVI output in monitor configuration it worked > perfectly). To confirm this was indeed working with the DC code path I > tested audio over HDMI and it worked just fine (and does not work with DC > disabled, as expected). So I rebooted with both the DVI and HDMI in and the > output over HDMI worked all through boot. I then disconnected the DVI and > rebooted and the HDMI continues to work so far. Unfortunately I don't have a > displayport monitor around to test if that behaves as weirdly. Just to be > clear, I had tried to make this monitor work for a couple weeks over HDMI > and the only thing that worked was amdgpu.dc=0 until I plugged in the DVI > connector so this was not a one off fail. > > I forgot to mention before that when the HDMI output was not working with DC > my Xorg logs also showed no monitor detected. > > I can attach the two different Xorg logs if that helps? I am following this thread since it has created. My R9 380 with DVI-I output is connected to my VGA monitor with DVI-I male to VGA female adapter and I am getting black/blank screen while booting with amdgpu.dc=1 which is default since kernel 4.17. It is fine with amdgpu.dc=0. I can provide logs too if any kernel contributor wants to investigate the problem any further. -- 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
