I'm having this problem on a Radeon HD 7870 on 14.04.
It is supposedly fixed by a glyph cache fix in xserver 1.17.
Unfortunately, the xserver in the upcoming Ubuntu 15.04 Vivid Vervet
is still based on xserver 1.16.
** Changed in: xserver-xorg-video-ati (Ubuntu)
Status: New = Confirmed
In my case this happens with the open source Radeon driver on a Radeon
HD 7950, but does not happen on a Radeon HD 5450.
The only affected application its Firefox, and only when I'm editing
text on a web site on a text editor gadget.
In my case parts of the text dissapear, if I select the text
I forgot to mention that I have been observing this problem since 13.10,
I currently run 14.04.
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https://bugs.launchpad.net/bugs/1314551
Title:
1002:130f
[Expired for xorg (Ubuntu) because there has been no activity for 60
days.]
** Changed in: xorg (Ubuntu)
Status: Incomplete = Expired
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I've had similar problems.
Regarding comment #7, 12.04 was not affected, I first saw the problem
after upgraded to 13.10 (I didn't use 12.10 or 13.04 so can't say it
they were affected). The problem persisted after upgrading to 14.04.
I've had the same problem affected both open source ATI and
Bartlomiej Ogryczak, thank you for your comment. So your hardware and problem
may be tracked, could you please file a new report with Ubuntu by executing the
following in a terminal while booted into the default Ubuntu kernel (not a
mainline one) via:
ubuntu-bug linux
For more on this, please
Pending
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1314551/comments/7 .
** Changed in: xorg (Ubuntu)
Status: New = Incomplete
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Just because nobody fixed it doesn't mean that it magically fixed
itself.
** Changed in: xorg (Ubuntu)
Status: Expired = New
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Title:
[Expired for xorg (Ubuntu) because there has been no activity for 60
days.]
** Changed in: xorg (Ubuntu)
Status: Incomplete = Expired
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Florian Hars, regarding only the hardware noted in the bug description,
does the AMD proprietary drivers provide a WORKAROUND following
https://help.ubuntu.com/community/BinaryDriverHowto/AMD ?
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Installing fglrx results in an unbootable system, even rebooting into
failsafeX mode hangs completly after configuring the network. Luckily
there has been a kernel update since the beta, so I could use the old
grub entry to boot into failsafe mode and puge fglrx from there.
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I updated to the F7 BIOS, that doesn't fix the problem.
** Tags removed: bios-outdated-f7
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Title:
1002:130f [GIgabyte G1.Sniper A88X-CF]
Florian Hars, for regression testing purposes, could you please test
Precise via http://old-releases.ubuntu.com/releases/12.04.0/ and advise
to the results?
** Description changed:
I see the occasional corrupted letters in 14.04 using AMD Radeon R7
graphics hardware with the radeon driver.
+
I never used anything else on that hardware. It did not happen with
13.04 on the intel graphics machine I used before, but that information
does probably not help.
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