<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Screen flickering under amdgpu-experimental [buggy auto power profile]" href="https://bugs.freedesktop.org/show_bug.cgi?id=102646#c74">Comment # 74</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Screen flickering under amdgpu-experimental [buggy auto power profile]" href="https://bugs.freedesktop.org/show_bug.cgi?id=102646">bug 102646</a> from <a class="email" href="mailto:bmilreu@gmail.com" title="bmilreu@gmail.com">bmilreu@gmail.com</a> <pre>(In reply to Bastian from <a href="show_bug.cgi?id=102646#c73">comment #73</a>) > (In reply to Bastian from <a href="show_bug.cgi?id=102646#c69">comment #69</a>) > > Distro/Kernel: Ubuntu 18.04.2/5.0.2 > > GPU AMD: Readon RX570 - Mesa 19.0 > > Display: Iiyama G23530HSU 75hz > > Desktop: Gnome > > > > video: <a href="https://www.youtube.com/watch?v=gNJ2kJ8hsHA">https://www.youtube.com/watch?v=gNJ2kJ8hsHA</a> > > > > Have the same problem as the op. The problems started with the 4.20 Kernels. > > Had not this problem with 4.19 LTS Kernels. The flickering doesn't appear on > > wayland if I choose only 60hz. On xorg it is irrelevant how much hz I use, > > it flickers regardless. > > > > sudo -i > > echo "manual" > > > /sys/class/drm/card0/device/power_dpm_force_performance_level > > echo "2" > /sys/class/drm/card0/device/pp_dpm_mclk > > > > Fixes the flickering. > > Just a quick update. After switching from HDMI to DisplayPort the issue > resolved itself for me. That's interesting. It's the opposite for me - only DP flickers, not HDMI. Lots of people on reddit have been discovering this as they're coming from older kernels, only this week I've helped 4 different posters asking about it. We'd like to hear anything from devs at this point so I'll CC this to AMD's DC dev Nicholas Kazlauskas.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>