[i965] Compiz low performance-flickering in jaunty

Bug #309838 reported by Ivan Stetsenko on 2008-12-19
This bug affects 4 people
Affects Status Importance Assigned to Milestone
xserver-xorg-video-intel (Ubuntu)

Bug Description

Binary package hint: xserver-xorg-video-intel

Compiz used to work fine in Intrepid, but after upgrade to jaunty some effects (for example, zoom animation for minimize/restore or fade animation for open/close) become extremely slow (1 or 2 fps) and buggy (i'm able to see a half-restored window, filled with random lines). The change in performance cannot be observed with a benchmark plugin, because the plugin slows down/freezes together with minimizing window.

lspci: 00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)

ii xserver-xorg-video-intel 2:2.5.1-1ubuntu6
ii xorg 1:7.4~5ubuntu7
ii xserver-xorg-core 2:

Bryce Harrington (bryce) wrote :

[This is an automated message]

Hi stetzen,

Please attach the output of `lspci -vvnn`, and attach your /var/log/Xorg.0.log file from after reproducing this issue. If you've made any customizations to your /etc/X11/xorg.conf please attach that as well.

Please attach the output of `lspci -vvnn` too.

Changed in xserver-xorg-video-intel:
status: New → Incomplete
Ivan Stetsenko (stetzen) wrote :

lspci -vvn

Ivan Stetsenko (stetzen) wrote :

I haven't modified my xorg.conf

nbubis (nbubis) wrote :

Hey all,

I'm having similar problems after upgrading to jaunty alpha 2. I'm using a dell inspiron 1420n with an intel g965 card.
glxgears has a frame rate of around 120 fps, but 3d games show a frame rate of only 5! fps.

It seems that hardware acceleration simply isn't enabled. Any idea on how to enable acceleration / fix the problem?

nbubis (nbubis) wrote :

xorg log shows numerous errors and warnings:

(WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
(WW) intel(0): libpciaccess reported 0 rom size, guessing 64kB
(WW) intel(0): Register 0x61200 (PP_STATUS) changed from 0xc0000008 to 0xd000000a
(WW) intel(0): PP_STATUS before: on, ready, sequencing idle
(WW) intel(0): PP_STATUS after: on, ready, sequencing on
(WW) intel(0): ESR is 0x00000001
(WW) intel(0): PRB0_CTL (0x0001f001) indicates ring buffer enabled
(WW) intel(0): Existing errors found in hardware state.
(WW) intel(0): Option "UseFBDev" is not used
(WW) intel(0): ESR is 0x00000001
(WW) intel(0): PRB0_CTL (0x0001f001) indicates ring buffer enabled
(WW) intel(0): Existing errors found in hardware state.

(EE) intel(0): underrun on pipe B!
(EE) intel(0): underrun on pipe B!
(EE) intel(0): underrun on pipe B!

confirmed here.
on alpha2 (previous install) and now on the 20090109 daily build alternate install CD.
No modifications at all. Stock config. no xorg.conf.

jaunty@jaunty:~$ uname -a
Linux jaunty 2.6.28-4-generic #9-Ubuntu SMP Tue Jan 6 19:34:01 UTC 2009 i686 GNU/Linux

xserver-xorg-video-intel 2:2.5.1-1ubuntu7

glxgears gives me 65fps.
glxinfo says direct rendering is enabled.
moving windows is slow, and becomes paintfully slow after a few mn.
Resizing is also very slow.

This machine usually runs ubuntu 8.10, with a snappy compiz.

Geir Ove Myhr (gomyhr) on 2009-01-18
Changed in xserver-xorg-video-intel:
status: Incomplete → Confirmed
Matt Zimmerman (mdz) wrote :

Confirmed here as well, it is cripplingly slow

Changed in xserver-xorg-video-intel:
importance: Undecided → High
status: Confirmed → Triaged
matthew (matthewbstanton) wrote :

when I run sudo glxgears instead of glxgears I get a better frame rate. The poor frame rate appears to be a permission issue for the user.

I can confirm, this bug appears to me after upgrading to Ubuntu Jaunty Alpha 3.

burningdog (bdog) wrote :

I had two boards with Intel 9xx Graphics, the Intel Double atom one D945...CFLthings2 and a Kontron (s479 mini itc board)

On the kontron, booted X with no problem but freaking slow compiz (3->15fps) and on the atom... no X...

needed to fix the atom setup adding to xorg.conf:
Option "AccelMethod" "UXA"

And it had freakking fast performance: 50fps :)

I've done the same on the kontron and tada! Fast compiz back :)

Maybe not the issue but a fix: )

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