Gentoo Archives: gentoo-user

From: "木叶" <enjoysilence@×××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Re: screen tearing when moving windows...
Date: Thu, 21 Mar 2013 04:01:13
Message-Id: 514A85EF.1060509@163.com
In Reply to: [gentoo-user] Re: screen tearing when moving windows... by Nikos Chantziaras
1 On 03/21/2013 11:31 AM, Nikos Chantziaras wrote:
2 > On 20/03/13 06:01, 木叶 wrote:
3 >> Hi all,
4 >>
5 >> I'm suffering screen tearing when moving windows around, watching
6 >> videos, and some other situations. I've tried almost all popular desktop
7 >> environments, including KDE, gnome(both traditional gnome 2 and new
8 >> gnome 3), and xfce, the issue always exists except in gnome 3. For the
9 >> main difference between these window managers, is gnome 3's window
10 >> manager (mutter) is based on opengl, I think there may be some problems
11 >> with my card's 2D acceleration. But'cat /proc/mtrr' shows everything is
12 >> well.
13 >> My graphical card is Nvidia Geforce GT240M, and I'm using the official
14 >> Nvidia drivers.
15 >>
16 >> Does anyone have any suggestions on how to troubleshoot this issue? Any
17 >> help much appreciated!
18 >
19 > Yes. Enable VSync and the issue goes away. I use KDE and the setting
20 > is in System Settings, Desktop Effects, "Advanced" tab ("Use VSync"
21 > checkbox.)
22 >
23 >
24 Thank you. I use XFCE4, and can't find any "VSync" like settings. But
25 I've found another way to solve the problem. I've replaced the default
26 WM xfwm4 with opengl-based emerald, and everything goes well now :-) .