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[Tommy Nevtelen <tommy@xxxxxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-intel

After an update from Karmic to Lucid alpha3 Xorg became unusable.
I'm on an Acer 1810TZ with Intel 4500hd graphics.

Xorg is generally slow and uses 50-65% cpu on an average when it should
idle. The screen flickers and I think that the wrong refreshrate is set
somehow.

Xorg.0.log is being filled with the following lines a couple of times a second.
(II) intel(0): EDID vendor "AUO", prod id 8284
(II) intel(0): Printing DDC gathered Modelines:
(II) intel(0): Modeline "1366x768"x0.0   65.50  1366 1390 1406 1406  768 770 774 776 -hsync -vsync (46.6 kHz)

This is spewed out by dmesg:
[ 4680.010670] Skipping EDID probe due to cached edid
[ 4680.180661] Skipping EDID probe due to cached edid
[ 4680.343652] Skipping EDID probe due to cached edid
[ 4680.513419] Skipping EDID probe due to cached edid
[ 4680.690676] Skipping EDID probe due to cached edid
[ 4680.861993] Skipping EDID probe due to cached edid

More info in the attachement

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: flicker intel xorg

-- 
Xorg is unusably slow and flickery
https://bugs.launchpad.net/bugs/531590
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