Public bug reported:
Hello !
I recently installed Xubuntu on 2 PC last week and I encounter a big
video performance hit.
To test my problem, I simply open a window (like a terminal that does
anything) and I shake it left to right.
The result is a "stair" effect. The window is no longer a single block. The
video driver displays multiple horizontally blocks not synchronized
horizontally.
I have the same problem while wathing videos when there is an horizontal
scrolling or when I scroll quickly in Firefox.
I previously saw such problems and the solution was always to install
the correct viedo driver (nvidia by example) instead of the vesa driver.
But there, my two PC has the correct driver. The nvidia proprietary driver for
one and the i915 for the other.
A lsmod and the X logs tell me that they are in use.
I did a 'top' as well and the CPU is far from being really used (4 or
5%) during the "shake test".
I googled a little, disabled the compositor, booted with
video=LVDS-1:d, with no effects.
I insist on the fact that with Ubuntu 13.10, I watched HD videos without
a trouble and both PC.
Am I the only one with this problem ?
** Affects: xubuntu-docs (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1329934
Title:
with correct video drivers
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