Comment # 36
on bug 101691
from Ethan Hsieh
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: https://goo.gl/8p26HZ 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: https://goo.gl/8p26HZ Besides the corruption issue, sometimes the gear stopped when I touched the touchpad. DC mode: $ DRI_PRIME=1 glxgears -info => Pass!!
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