font corruption in firefox and gnome-terminal after suspend

Here an illustration of the issue affecting the lowercase letter p.

Here's the issue affecting the lowercase f.

And here's the issue affected the bold uppercase letter W.

And here's one last one showing corruption on the uppercase letter E, and also the lowercase letter d in the small font above, where it says "xserver-org-video-intel"

Echo. Echo. Echo.

I get this as well but after a normal startup. Seems to be only in Firefox. This is on a EeePC 701 with 11.04.

Just a me too. Sony Vaio TT.

00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)

Fairly vanilla 10.04LTS 32 bit userspace with a 3.0-rc6 64 bit kernel. Using s2disk and s2both.

I'm using x-swat-team-x-backports-lucid, ubuntu-x-swat-x-updates-lucid & ubuntu-x-swat-x-backports-lucid

Each suspend / resume cycle progressively corrupts more of the fonts/graphic tiles until I have to close everything and restart X.

(II) LoadModule: "intel"
(II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
(II) Module intel: vendor="X.Org Foundation"
        compiled for 1.7.6, module version = 2.14.0
        Module class: X.Org Video Driver
        ABI class: X.Org Video Driver, version 6.0

More info :
On the hunt for another issue I put

option "Tiling" "false"

in the device entry of my xorg.conf and I've not seen the problem since. It might be worth trying.

I put the option you recommended, and it worked! Thanks, Brad!

Here are the steps I took to create an xorg.conf file (I did not have one) and then add the option to it.

1. Stop gdm:

        sudo service gdm stop

2. Log in at command prompt.

3. Enter the /etc/X11 directory:

        cd /etc/X11

4. Generate an xorg.conf.new file:

        sudo Xorg -configure

5. Rename xorg.conf.new to xorg.conf:

        sudo mv xorg.conf.new xorg.conf

6. Edit xorg.conf file, adding the following to the "Device" section:

        Option "Tiling" "False"

See also bug 782855, same issue except it happens on its own without any need for suspend/resume. Driving me crazy. I'll try Tiling false.

Darn! I spoke too soon! The issue remains.

Here too -- Option "Tiling" "False" doesn't help. I also tried "AccelMethod" "XAA" which I'd seen recommended elsewhere, but it caused a lot of other rendering errors. BTW, this is a Vaio TX650, X log says "Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller rev 3".

My graphics device is an "Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)".

Remember, I'm using the latest driver for 10.04LTS as listed in the PPA's post #6.

I was seeing the problem intermittently on a Vaio TX also, but when I moved to a TT (as detailed above) the problem progressively got worse. When I get some time, I'll upgrade my TX and see if I can reproduce it locally on that machine.

Status changed to 'Confirmed' because the bug affects multiple users.

I've seen this on my Asus EeePC 900, with Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller [8086:2592] (rev 04), on Maverick. It happens very rarely.

This is affecting also 11.10, with unity-2d on Asus EeePC 900.

Just saw this on Natty on the same Asus EeePC 900. I use Compiz, that is Unity 3D.

Interesting fact: usually I see this kind of font corruption after resuming from suspend, but this time my Asus was never suspended since it was booted a week ago (I've checked syslog to be sure).

Can this be a duplicate of bug 745608?

It is also happening on Precise Pangolin, 12.04, beta.
I found the issue after screen becomes blank or after user switch. I saw it only on Unity, never on XFCE, despite using composite on both. I didn't tried on Gnome 3.
Today i found it happening on Firefox after Firefox was grayed due to becoming unresponsive (too high memory usage); then the webpage characters became corrupted, a refresh of the webpage seems to fix it, and the background behind was 'pixelated'.
Using Intel Video Chipset on a desktop board:
VGA compatible controller: Intel Corporation 82945G/GZ Integrated Graphics Controller .