Haven't seen this once since upgrading to 16.04 back in April, so I'm
pretty sure the issue has been fixed. Yay!
** Changed in: xorg (Ubuntu)
Status: Expired => Fix Released
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** Tags added: trusty
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https://bugs.launchpad.net/bugs/1345573
Title:
Horizontal lines flashing on screen briefly
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Just adding a note that this does still occur under 14.04, to which I
recently upgraded. Naturally this was to be expected, given that the
issue first occurred after switching to the Trusty HWE pack in 12.04.
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[Expired for xorg (Ubuntu) because there has been no activity for 60
days.]
** Changed in: xorg (Ubuntu)
Status: Incomplete => Expired
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Tit
I can, but it'll be hard to get definitive evidence as the phenomenon
can be quite elusive, and I cannot run the daily for very long periods
(as it gets in the way of productivity). Obviously, if I catch it even
once on the daily, it'll be proof enough that the issue persists, but on
the other hand
Jani Uusitalo, to see if this is already resolved in a later version of
Ubuntu, could you please test for this via http://cdimage.ubuntu.com
/daily-live/current/ and advise to the results?
** Description changed:
Since upgrading HWE from -lts-saucy to -lts-trusty, I have had recurring
graphic
Hi Christopher, the apport-collected data above was gathered from my
main desktop, which only has Intel graphics. (I mentioned the other
system with Radeon just because it *didn't* suffer from this problem
despite having the same software. I no longer have access to that system
so unfortunately I c
Jani Uusitalo, just to clarify, did you remove or disable your radeon
card before running the apport-collect?
** Tags added: latest-bios-1505
** Changed in: xorg (Ubuntu)
Importance: Low => Medium
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apport information
** Tags added: apport-collected compiz-0.9 ubuntu
** Description changed:
Since upgrading HWE from -lts-saucy to -lts-trusty, I have had recurring
graphical glitches on screen, with short black horizontal lines
appearing briefly on screen (on top of normal contents), par
Jani Uusitalo, thank you for reporting this and helping make Ubuntu
better. Could you please run the following command from a terminal as it
will automatically gather and attach updated debug information to this
report:
apport-collect -p xorg 1345573
Please ensure you have xdiagnose installed, an
Reopening. It didn't go away after all, looks like the occurrence varies
(didn't see it yesterday), perhaps those Chromium settings just made it
more probable.
** Changed in: xorg-lts-trusty (Ubuntu)
Status: Invalid => New
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I take that back, it seems to have been caused by Chromium all along
(more specifically either #threaded-compositing-mode or #deadline-
scheduling), despite those glitches appearing outside of Chromium too.
Sot it's a Chromium bug, but I'm too lazy to debug this further (the
issue goes away with th
Also, here's a screenshot (from the video) with the artifacts visible. I
notice they seem to cover mostly just Chromium's content area, but just
last night I had this occur just as I was logging out (with the lines
remaining on screen until I tried to take a screenshot), with nothing
but the log ou
Ha, finally caught a couple of glimpses of this in a screen recording!
Attaching it here.
** Attachment added: "blink.ogv"
https://bugs.launchpad.net/ubuntu/+source/xorg-lts-trusty/+bug/1345573/+attachment/4158687/+files/blink.ogv
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** Attachment added: "Xorg.0.log"
https://bugs.launchpad.net/ubuntu/+source/xorg-lts-trusty/+bug/1345573/+attachment/4157913/+files/Xorg.0.log
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