On 03/21/2013 11:31 AM, Nikos Chantziaras wrote:
> On 20/03/13 06:01, 木叶 wrote:
>> Hi all,
>>
>> I'm suffering screen tearing when moving windows around, watching
>> videos, and some other situations. I've tried almost all popular desktop
>> environments, including KDE, gnome(both traditional gnome 2 and new
>> gnome 3), and xfce, the issue always exists except in gnome 3. For the
>> main difference between these window managers, is gnome 3's window
>> manager (mutter) is based on opengl, I think there may be some problems
>> with my card's 2D acceleration. But'cat /proc/mtrr' shows everything is
>> well.
>> My graphical card is Nvidia Geforce GT240M, and I'm using the official
>> Nvidia drivers.
>>
>> Does anyone have any suggestions on how to troubleshoot this issue? Any
>> help much appreciated!
>
> Yes. Enable VSync and the issue goes away. I use KDE and the setting
> is in System Settings, Desktop Effects, "Advanced" tab ("Use VSync"
> checkbox.)
>
>
Thank you. I use XFCE4, and can't find any "VSync" like settings. But
I've found another way to solve the problem. I've replaced the default
WM xfwm4 with opengl-based emerald, and everything goes well now :-) .
