I have a Radeon R9-270 and I am running Fedora 23 with the default OpenSource drivers supplied with the repository. Yesterday I did an Update from Kernel 4.3.3-300 to 4.4.3-300 and I started seeing some issues. When I do nothing for about 12 seconds the screens (dual head) turn blank. Moving the mouse makes the screen go back on again. Sometimes the login-screen of the gnome-shell or chrome are frozen but the system as a whole seems fine. During normal operations /sys/kernel/debug/dri/0/radeon_pm_info is the following: power level 0 sclk: 30000 mclk: 120000 vddc: 950 vddci: 1000 pcie gen: 2 When the screen is still for a bit (exactly when it turns blank) the output is power level 0 sclk: 30000 mclk: 15000 vddc: 900 vddci: 850 pcie gen: 2 So apparently, when the video card is clocked down, the output is deactivated. My current "workaround" is running videos on the side - not an ideal solution.
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/703.
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.