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[Jonathan Scoles <657976@xxxxxxxxxxxxxxxxxx>]

Seeing the same behavior on a 1001p Eee PC.

Specifically, I am seeing very slow/inconsistent performance when using
the launcher bar at the left edge of the screen.  It takes 2 or 3 clicks
on an icon for it to actually switch to or start the application that I
clicked on.  In Top I see mutter using up 50% or more of the cpu.

I tried setting clutter_vblank and see no improvment.  However, after running mutter with the command
CLUTTER_VBLANK=NONE mutter --replace

I saw lots of errors in the terminal window, like these:

(mutter:6015): Clutk-DEBUG: CtkText: focus-in
Mesa 7.9-devel implementation error: Bad renderbuffer format: 21

Please report at bugzilla.freedesktop.org

(mutter:6015): dee-WARNING **: Unable to connect to peer (:1.20): Could
not get owner of name ':1.20': no such name

(mutter:6015): dee-WARNING **: Unable to connect to peer (:1.20): Could not get owner of name ':1.20': no such name
(mutter:6015): Clutk-DEBUG: CtkText: focus-in
Window manager warning: Log level 16: g_object_weak_unref: couldn't find weak ref 0x7124c0(0xa1db3b8)
Window manager warning: Log level 8: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(mutter:6015): Clutter-CRITICAL **: clutter_actor_unparent: assertion
`CLUTTER_IS_ACTOR (self)' failed


This last line shows up every time I mouse over or click one of the icons in the launcher bar on the left edge of the screen.

-- 
[Intel GMA 945/950] Unity Interface Is Extremely Slow (Ubuntu Netbook 10.10)
https://bugs.launchpad.net/bugs/657976
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