This bug is still present! I am sorry but i don't have access to the HW
atm, so someone else needs to take over :)
@Bryan Can you do that?
** Changed in: xorg (Ubuntu)
Status: Expired => Incomplete
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*** This bug is a duplicate of bug 1550779 ***
https://bugs.launchpad.net/bugs/1550779
@Bryan Yeah that's why open source collaboration rocks :) I will mark
the bug duplicate and we should follow the other one for getting the fix
backported.
For all T450s owner that might find this bug, you n
Running a newer 4.6 kernel from http://kernel.ubuntu.com/~kernel-
ppa/mainline/v4.6-yakkety and it seems like the issue is gone. That
would actually mean that this bug seems like a duplicate of Bug
#1550779.
@Bryan: Can you please test the newer kernel as well and confirm this?
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You received t
Just did a quick try while working with the annoyance before i will
switch back to my laptop i found that the options for the intel xorg
driver will proably have no impact on this issue. For example:
t450s:~$ cat /var/log/Xorg.0.log | grep -i tear
[10.276] (==) intel(0): TearFree disabled
Did
FYI as i just noticed it happens on the first and secondary screen with
the known error:
May 23 14:16:23 HOSTNAME kernel: [18314.479875]
[drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe B FIFO
underrun
** Summary changed:
- [Thinkpad T450s] Screen flickering on second monitor wi
Can confirm the same behaviour on an T450s i am testing for a colleague
with the Thinkpad Ultra Dock (40A2) and two NEC EA244WMi attached via
Displayport.
The frequency is always changing from one till 30 times per hour. But i
think i also got the flickering and screen off at the third and interna
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