<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - 2560x1440 @144Hz graphic glitches and bad refresh rate" href="https://bugs.freedesktop.org/show_bug.cgi?id=93826#c55">Comment # 55</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - 2560x1440 @144Hz graphic glitches and bad refresh rate" href="https://bugs.freedesktop.org/show_bug.cgi?id=93826">bug 93826</a> from <a class="email" href="mailto:iuno@posteo.net" title="iuno@posteo.net">iuno@posteo.net</a> <pre>(In reply to Pavel Bordukov from <a href="show_bug.cgi?id=93826#c54">comment #54</a>) > Doesn't work for me. Linux 4.11.3, R9 290x, Asus MG279Q, 144Hz has > flickering and dirty picture. 120Hz works well. I have a similar setup. Can you try what I posted above? Make sure to raise the DC clock above the default value, e.g. to 625 MHz (value 62500) If you use amdgpu: in amdgpu_atombios.c adev->clock.default_dispclk If you use radeon: in atombios_crtc.c rdev->clock.default_dispclk That should fix the broken image. To fix flickering, set mclk to high (echo 1 > /sys/class/drm/card0/device/power_dpm_force_performance_level)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>