Seeing this on Bionic also, with 2 external screens and the built in
laptop display.
product: UX303UA
vendor: ASUSTeK COMPUTER INC.
product: HD Graphics 520
configuration: driver=i915 latency=0
I've attached my Xorg.log if that's helpful.
On first boot, or after unplugging the external displays (e.g. to walk
away), then reconnecting them, one or the other screen (or both) refuse
to power on, even if I fiddle with the power button. Sometimes
unplug/replug helps, mostly not. Eventually, after turning the screens
on and off via xrandr/arandr, multiple times, I can usually get them
both back on. I see the same thing if I connect two screens via a MST
hub, or one screen there and one via the HDMI port. It's got that race
condition feeling about it, in that I can do the same thing several
times over and one of the times it works fine, but the others not.
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1313539
Title:
[DisplayPort] monitor shows black screen and "no input signal" after
turning the monitor off and on manually
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+bug/1313539/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
