<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - gfx corruption on windowed 3d-apps running on dGPU" href="https://bugs.freedesktop.org/show_bug.cgi?id=101691#c36">Comment # 36</a> on <a class="bz_bug_link bz_status_ASSIGNED " title="ASSIGNED - gfx corruption on windowed 3d-apps running on dGPU" href="https://bugs.freedesktop.org/show_bug.cgi?id=101691">bug 101691</a> from <a class="email" href="mailto:ethan.hsieh@canonical.com" title="Ethan Hsieh <ethan.hsieh@canonical.com>"> Ethan Hsieh</a> <pre>Based on AMD's comment (The issue is gone without Compiz), I did some tests. Here is the test result: ----------------------------------- 1) Run glxgears without a desktop environment ----------------------------------- a. Logout b. Switch to tty1 c. Stop lightdm and then start x $ service lightdm stop $ startx d. Run glxgears AC mode: $ DRI_PRIME=1 glxgears -info => corruption issue is gone, but it is back when I touch touchpad. Video: <a href="https://goo.gl/8p26HZ">https://goo.gl/8p26HZ</a> Besides the corruption issue, sometimes the gear stopped when I touched the touchpad. DC mode: $ DRI_PRIME=1 glxgears -info => Pass!! ----------------------------------- 2) Run glxgears with other window manager ----------------------------------- a. Install TWM $ sudo apt-get install twm $ sudo apt-get install afterstep b. Logout and then login with twm c. Run glxgears AC mode: $ DRI_PRIME=1 glxgears -info => corruption issue is gone, but it is back when I touch touchpad. Video: <a href="https://goo.gl/8p26HZ">https://goo.gl/8p26HZ</a> Besides the corruption issue, sometimes the gear stopped when I touched the touchpad. DC mode: $ DRI_PRIME=1 glxgears -info => Pass!!</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>