Public bug reported:
I'm using Ubuntu 16.04 on my HP laptop. My screen is horizontally
divided into two parts. The upper part is fine but the lower part is
flickering. This is not a hardware issue because sometimes I don't see
any issues.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package:
Public bug reported:
want calibration profiles
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic i686
.tmp.unity.support.test.0:
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: i386
Sometimes freezes arise when Firefox is running. It seems that something
like out of memory happens and (as 'top' shows) kswap is active
(although I disable swap completely). Pressing Alt+SysRq+F kills Firefox
and everything goes well.
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Christopher, unfortunately this bug appears not very often and I cannot
reproduce it at will. Say after last reboot there are no problems (but I
turn off many services like update center, may be there is some kind of
connection with the problem).
What about video driver... - that was not a
I tried latest development release and there were no problems during
about 1 hour of OS activity. I hope I try to test it longer in a few
days.
What about video driver: I use radeon, below there is an output of
command dmesg | egrep 'drm|radeon'
[1.913046] [drm] Initialized drm 1.1.0
Public bug reported:
Random screen freezes (see also
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1184451).
Sometimes system is hanging and it looks like swapping is active (but swap is
disabled completely), no response to either mouse/keyboard. Switching to
terminals
I recreate the same bug with ubuntu-bug xorg command. See
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1222791
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https://bugs.launchpad.net/bugs/1077616
Similar bug-report:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1210397
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https://bugs.launchpad.net/bugs/1222791
Title:
(EE) [mi] EQ overflowing. Additional events will be
Similar bug-report:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1222791
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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1210397
Title:
Xorg hang: (EE) [mi] EQ overflowing. Additional
Apropos, please write which graphics driver do you use.
I use radeon.
Below I attach Xorg.0.log when xorg is almost frozen and I need to
restart it from terminal.
Short peace of it:
[1048945.485] [mi] These backtraces from mieqEnqueue may point to a culprit
higher up the stack.
[1048945.485]
The problem with screen freezing seems to be solved when I set
/proc/sys/vm/swappiness to 0 (probably 10 also will be fine).
And I should note than in my case of screen freezing mouse cursor also stops
moving completely. Such freeing lasts from 1 second to ~10 seconds.
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Unfortunately, problem is not solved... :(
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https://bugs.launchpad.net/bugs/1184451
Title:
Ubuntu 13.10 random screen freeze while Normal OS activites
To manage
I confirm the problem. XUbuntu 13.04, kernel 3.8.0-25-generic.
I think this is a problem with X-server.
** Package changed: ubuntu = xorg-server (Ubuntu)
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The screen freeze arises mainly while processor is fully loaded
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https://bugs.launchpad.net/bugs/1184451
Title:
Ubuntu 13.10 random screen freeze while Normal OS activites
Bryce Harrington wrote:
Hi cornucopic,
Please attach the output of `lspci -vvnn` and `dmesg`, and attach your
/var/log/Xorg.0.log (and maybe Xorg.0.log.old) file from after reproducing
this issue. If you're using a custom /etc/X11/xorg.conf please attach that
as well.
I don;t face
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