David Pérez, as this report is closed, if you have a bug please file a new
report via a terminal:
ubuntu-bug xorg
Please ensure you have the package xdiagnose installed, and that you
click the Yes button for attaching additional debugging information.
Also, please feel free to subscribe me to it
I've found a relevant document about our bug:
There are a couple of backends available for accelerating the DDX. "UXA"
(Unified Acceleration Architecture) is the mature backend that was
introduced to support the GEM driver model. It is in the process of
being superseded by "SNA" (Sandybridge's New
After reading this page https://downloadcenter.intel.com/product/81523
/Graphics-Drivers-for-Intel-82Q963-Graphics-and-Memory-Controller-Hub-
GMCH-, I see that latest official drivers from Intel date from august
2013.
Possible workarounds:
- Keep on using Linux and have to reboot every few hours
I'm experiencing also this nasty bug:
$ lspci|grep -i graphic
00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965 Integrated
Graphics Controller (rev 02)
00:02.1 Display controller: Intel Corporation 82Q963/Q965 Integrated Graphics
Controller (rev 02)
After reading your technical c
I opened Bug #1314551 for the current AMD version of this behaviour and
subscribed Christopher to it.
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Title:
[gen4 sna] Font corruption
To mana
Jmadero, thank you for your comment. So your hardware and problem may be
tracked, could you please file a new report by executing the following in a
terminal:
ubuntu-bug xorg
Please ensure you have xdiagnose installed, and that you click the Yes
button for attaching additional debugging informat
I still have the same issue - not sure if it's made it into 13.10
repositories
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Title:
[gen4 sna] Font corruption
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I am having ATI video card. The problem still persists. Any idea on
this?
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Title:
[gen4 sna] Font corruption
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I'm keeping the upstream bug open to see if we can fix the performance
implications of the workaround. But as far as the corruption is
concerned, the fix has been release (and packaged by Ubuntu).
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Incomplete => Fix Released
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I was expirening this bug in Ubuntu 13.10, but I've been running the
14.04 alpha for a few weeks now and haven't noticed it recently at all.
uname -a
Linux sidekick 3.13.0-6-generic #23-Ubuntu SMP Thu Jan 30 09:48:03 UTC 2014
x86_64 x86_64 x86_64 GNU/Linux
I'll report back here if it comes back.
Anirban Ghosh, thank you for your comment. So your hardware and problem may be
tracked, could you please file a new report by executing the following in a
terminal:
ubuntu-bug xorg
For more on this, please see the official Ubuntu documentation:
Ubuntu X.Org Team, Ubuntu Bug Control, and Ubuntu B
This happens with me in Firefox in Ubuntu 13.10.
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Title:
[gen4 sna] Font corruption
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Thaddäus Tintenfisch, please allow the original reporter to perform the
requested action, so his logs may be collected.
Thank you for your understanding.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed => Incomplete
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** Tags added: trusty
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Incomplete => Confirmed
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Title:
[gen4 sna] Font corruption
** Bug watch added: freedesktop.org Bugzilla #73348
https://bugs.freedesktop.org/show_bug.cgi?id=73348
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Title:
[gen4 sna] Font corruption
To
Jonathan Thomas, this bug was reported a while ago and there hasn't been
any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/
For me #define MAX_FLUSH_VERTICES 1 fixes the issue. #define
MAX_FLUSH_VERTICES 2 is also stable so far. Values starting from 3
result in artifacts.
However, as I wrote in post #150, reverting this:
diff --git a/src/sna/sna_glyphs.c b/src/sna/sna_glyphs.c
index 62415c8..43086a0 100644
--- a/src
Gents,
I've spent some time bisecting the xf86-video-intel to track down the issue. So
far my conclusion is as follows: the issue was introduced in this commit -
http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/commit/?id=2a59eadf8165bd70780ac16220456c6196ac3ff1
Reverting the changes in
I just noticed that when I visit the web page
http://www.thomann.de/se/thomann_dp25.htm and play a music sample
from that page something happens with the text on the screen. Characters are
distorted and back synchronized with the music.
The error pops around on the screen seemingly in random. I
** Summary changed:
- [gen4 sna] Font corruption in Chromium tab bar
+ [gen4 sna] Font corruption
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[gen4 sna] Font corruption
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** Tags added: saucy
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Title:
[gen4 sna] Font corruption in Chromium tab bar
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Notice how with Chromium/Chrome the corruption happens only on display
positions where the fade out effect is applied to the right side of the
tab.
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** Bug watch added: freedesktop.org Bugzilla #51471
https://bugs.freedesktop.org/show_bug.cgi?id=51471
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Title:
[gen4 sna] Font corruption in C
Same thing here. After upgrading to Raring, font tabs in chrome began to
show the described jittery behavior. I've tried full uninstall, and then
install (chrome) with no success... I'm in Xubuntu 13.04, on a Lenovo
Thinkpad Edge 13...
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I'm seeing the "jittery" behavior when scrolling any window in Firefox
too ... !!
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Title:
[gen4 sna] Font corruption in Chromium tab bar
To mana
I've seen this not just on Chromium, but on window title bars
occasionally.
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Title:
[gen4 sna] Font corruption in Chromium tab bar
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I'm seeing the "jittery" behavior when scrolling any window in Firefox and
Thunderbird.
Also, I have noticed occasional font corruption (to the point that it is
illegible) when using Citrix Receiver to run remote desktop to my corporate
Citrix server (altering the RDP display properties from Ful
** Summary changed:
- Font corruption in Chromium tab bar using Intel SNA
+ [gen4 sna] Font corruption in Chromium tab bar
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Title:
[gen4 sna] Fo
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