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Date: Sun, 15 Jan 2012 02:27:03 -0800
From: Yuri <yuri@rawbw.com>
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Subject: Sound on the system briefly interrupts when kde4 switches windows
 with nvidia card
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I have kde4 on 8.2 with translucency windows effect enabled and nvidia 
graphics driver.
Every time I switch an active window or maximize some window, sound 
played by mplayer interrupts for ~0.5 sec. Very annoying effect. Problem 
disappears when windows effects in kde4 are turned off.
Is this likely a bug in nvidia driver that it locks up the system when a 
lot of OpenGL operations are in progress? Or what might be a problem?

Yuri