I can confirm that bug in xubuntu 14.04 (nvidia-driver version 304.125),
XFCE4's compositor disabled.
the part from glxinfo output:
name of display: :0.0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx
For me the only way to avoid tearing when reproducing video or using
applications such as Firefox is to use the Nouveau driver.
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Title:
Screen
** Changed in: xorg-server (Ubuntu)
Importance: Undecided = High
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Title:
Screen tearing Nvidia - since Kubuntu 14.04
To manage notifications
I'm sorry to report that the Desktop Effects workaround does not work
anymore...
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https://bugs.launchpad.net/bugs/1374976
Title:
Screen tearing Nvidia - since Kubuntu 14.04
To manage
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: xorg-server (Ubuntu)
Status: New = Confirmed
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Title:
One more thing to add...
Sadly after my computer goes to sleep and then wakes up the tearing comes back.
You have to go to System Settings - Desktop Effects - Advanced tab and change
Scaling Method to whatever. Than Apply changes and that's it.
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