<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - radeonsi 120Hz graphic glitches" href="https://bugs.freedesktop.org/show_bug.cgi?id=87796#c13">Comment # 13</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - radeonsi 120Hz graphic glitches" href="https://bugs.freedesktop.org/show_bug.cgi?id=87796">bug 87796</a> from <a class="email" href="mailto:ahartmetz@gmail.com" title="Andreas Hartmetz <ahartmetz@gmail.com>"> Andreas Hartmetz</a> <pre>I have a somewhat similar issue with radeonsi, latest everything (xorg, llvm, mesa) except Linux kernel which is 3.17.8, and Cape Verde PRO (aka Radeon HD 7750) hardware. The screen sometimes turns completely black for a frame. It happened a few times per hour. In the past this could be reliably avoided by pinning the power setting to min or max, but DPM changes prevented that fix from working. Now that I know this: echo high > /sys/class/drm/card0/device/power_dpm_force_performance_level (looks similar to the one that used to work a few kernels earlier?) I can avoid the problem again, but of course at the cost of power consumption. The underlying issue might be the same timing problem. I can file a new bug if you think it is a different issue.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>