** Changed in: linux (Ubuntu)
Status: Incomplete => New
** Summary changed:
- external monitor goes black for several seconds at a time, randomly
+ [i915] external monitor goes black for several seconds at a time, randomly
** Tags added: i915 multimonitor
--
You received this bug notifi
You mentioned "intermediate adapters". I'm using a Lenovo Ultradock between my
laptop and the monitor.
This causes no trouble on my Acer B326HK, which is just as high-res, but the
new Samsung monitor continues to do the blackout thing. It's not strictly
reproducible so far (fullscreening does n
Thank you so much, Daniel!
The Samsung is new. I'll try some swapping to isolate any hardware problem.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1929209
Title:
external monitor goes black for se
Ah, it appears you've tried both an Acer B326HK (Xrandr.txt) and a
Samsung U32J59x (XorgLog.txt). If you experience similar problems with
both then it suggests the problem is not the monitor but the cable,
connectors, adapters (if any) or the laptop.
** Description changed:
At times it is compl
Thanks for the log. There doesn't seem to be anything relevant there, at
least not for the past few days. So it seems like the kernel isn't aware
of the problem.
Indeed this looks like a bad cable or bad connection somewhere.
Especially if fullscreening a window triggered the problem -- that
sugge
(Recently,) it only happens when I make something full-screen on the external
monitor. I do not think this is a hardware (which is brand new) problem.
Just now I made a browser full screen and it immediately strted happening every
several seconds for a couple of seconds at a time. I've attached t
Thanks for the bug report. Issues like this are almost always caused by
a bad cable, bad connection, or by using intermediate adapters. So
ideally please try a new cable.
Also, next time the problem happens please then run:
journalctl -b0 > journal.txt
and attach the resulting text file here.
