After disabling AMDGPU DC on my RX460, my Arch does not load. It was shown on 4.16.13 and earlier, and is now on new 4.17.2. Inclusion should be mandatory for Vega and Raven Ridge, but not Polaris.
It's a bit unclear what you're saying. Disabling DC (via amdgpu.dc=0?) worked with 4.16.13, but doesn't anymore with 4.17.2? Please attach the dmesg output from a good case and if possible from a bad case.
Almost. The shutdown did not work on 4.16.13 and earlier. And there is now on my fresh 4.17.2. Disable by removing amdgpu.dc=1 of the string. P.S. I noticed that there is a bug and when you disable TearFree in the config.
Created attachment 140192 [details] dmesg
(In reply to Dmitry from comment #2) > Almost. The shutdown did not work on 4.16.13 and earlier. And there is now > on my fresh 4.17.2. What is there now? > Disable by removing amdgpu.dc=1 of the string. DC is enabled by default as of 4.17, you have to explicitly disable it with amdgpu.dc=0. > P.S. I noticed that there is a bug and when you disable TearFree in the > config. Please file a separate report about that against product xorg, component Driver/AMDgpu.
>> What is there now? Same thing. The system is not loaded beyond the point "Reached target graphic Interface". But there is one point, helps pressing Enter, sometimes two presses. >> DC is enabled by default as of 4.17, you have to explicitly disable it with amdgpu.dc=0. I understood the update meant that it was no longer necessary to specify startup parameters such as amdgpu.dc=1. Tried with amdgpu.dc=0, but the same problem.
Found out that this bug with SDDM which I use. It is happening because of a change in configuration or any other reason.
Sorry. Indeed the problem was on the SDDM side. Decided to install haveged.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.