A recent update has fixed it! 18.04 as released comes with kernel
4.15.0-20-generic, which has the bad video effect. Latest update
(2/7/2018) includes 4.15.0-24-generic, which does not (it works
perfectly).
Thanks for your interest!
** Changed in: linux (Ubuntu)
Status: Incomplete => Fix
Merlin:
I) The scope of LP#1300349 is how a pre-3.18-rc4 kernel had an issue,
which 3.18-rc4 fixed. However, you are using a 4.15 kernel. Hence, the
scope and root cause are different (i.e. not relevant).
II) In order to allow additional upstream mainline kernel developers to examine
the issue,
Hi Christopher.
Answering your questions in turn:
1) All I can say for the moment is that it was OK in Ubuntu 17.10 and
not OK in 18.04.
2) The monitor is actually a Samsung television, model no. UE40EH5000.
However, I want to be clear that the issue is with the screen in the
laptop itself, not
Merlin:
1) For you personally with your hardware, what was the most recent
kernel/release where this issue did not happen?
2) As per the sticker of the monitor itself (not from the Bug
Description, or the result of a terminal command), could you please
provide the full manufacturer and model?
apport-collect was run on an installed and fully patched system as it
did not appear to run correctly from the distribution memory stick. The
video behavior is identical in both cases.
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apport information
** Tags added: apport-collected bionic
** Description changed:
When booting 18.04 on my Dell 5737 I am greeted with an image like the
attached. The colours are clearly incorrect and the display looks to be
of low resolution. This is true whether booting from a fresh
Merlin, thank you for taking the time to report this bug and helping to make
Ubuntu better. Please execute the following command only once, as it will
automatically gather debugging information, in a terminal:
apport-collect 1777257
When reporting bugs in the future please use apport by using
This post from
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300349 looks
particularly relevant:
Peter-jezdec (peter-jezdec) wrote on 2014-11-11:#49
Christopher, the first good commit is
344c5bbcb7a282cc59e2f111c8801106c4fe315c.
Fortunately I learned something from the
