Thanks!
The login screen uses Wayland so that's also a good test in itself. If
the issue affects the Wayland backend then it sounds like this is a
kernel or hardware problem. To check that, next time the issue happens,
please run:
grep . /sys/class/drm/*/modes > modes.txt
and then attach the file 'modes.txt' here.
---
Just a guess: The problem might be timeouts on the i2c bus waiting for
the monitor to return its EDID. So that could happen randomly. In that
case, maybe try a different DisplayPort cable if you can.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Changed in: linux (Ubuntu)
Importance: Undecided => High
--
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/1859071
Title:
Modesetting randomly fails to offer all modes available in the EDID
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1859071/+subscriptions
_______________________________________________
Mailing list: https://launchpad.net/~ubuntu-x-swat
Post to : ubuntu-x-swat@lists.launchpad.net
Unsubscribe : https://launchpad.net/~ubuntu-x-swat
More help : https://help.launchpad.net/ListHelp
