<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - amdgpu.dc=1 shows performance issues with Xorg compositors when moving windows" href="https://bugs.freedesktop.org/show_bug.cgi?id=106175#c43">Comment # 43</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - amdgpu.dc=1 shows performance issues with Xorg compositors when moving windows" href="https://bugs.freedesktop.org/show_bug.cgi?id=106175">bug 106175</a> from <a class="email" href="mailto:bmilreu@gmail.com" title="bmilreu@gmail.com">bmilreu@gmail.com</a> <pre>(In reply to Brandon Wright from <a href="show_bug.cgi?id=106175#c42">comment #42</a>) > This is pretty serious. Just moving the mouse cursor around while something > slightly GPU-heavy is running at 60hz can produce frame-skipping. > > I switched the display core off with amdgpu.dc=0 and everything got > significantly smoother and chromium doesn't chug on heavy pages any more. > > I'm using 4.19.x. I haven't tried the drm-next-4.21-wip tree yet. Dont need to try drm-next-4.21-wip, just did and it still has the issue If devs want an easy test case, use these links for reproducing it in chromium: <a href="https://www.vsynctester.com/">https://www.vsynctester.com/</a> <a href="https://www.testufo.com/photo">https://www.testufo.com/photo</a> <a href="https://www.slither.io">https://www.slither.io</a> move the cursor around, move/resize some windows. you will notice it the vsync/cursor stutters and frame-skips are pretty noticeable with dc=1 on all three links KWin, compton, TearFree, mutter, xfwm4 all have the same problems.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>