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** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1783957
Title:
Nouveau crashes at login with Kernel 4.15.0-29 on MacBook Air, so no
login screen in a normal sequence
Status in linux package in Ubuntu:
Incomplete
Bug description:
I have a MacBook Air laptop which is running Linux (Kubuntu 16.04.5
LTS) with NVidia Graphics Card, KDE, Xorg, SDDM, and so on... Clean
and natural install, no funky custom kernel or drivers or anything...
Everything worked fine (with the 4.13.* kernel) until I've upgraded
all my packages (which included the "wonderful" 4.15.0-29 kernel,
which broke my system).
Now, everytime I try to boot normally, it asks me for my disk password (I
have an encrypted LVM) and after that, guess what ?: blank screen. The login
screen does not appear.
I can switch the Terminals with Ctrl+Alt+Fx, however.
However, the same kernel, if I boot it in recovery mode and then I
select "Resume", the login screen appears, but it lags a little bit...
Needless to say, if I boot the older kernel (4.13), everything works
perfectly.
I dug up some logs and found something like "sddm-greeter"
segmentation fault in nouveau_dri.so or something like this.
So, it looks like the new kernel doesn't quite seem to look eye-to-eye
with nouveau drivers...
And no, I don't want the NVidia proprietary drivers because I get
along just perfectly with Nouveau on other machines, and I don't want
to reinstall nvidia drivers everytime I'm upgrading the kernel.
And yes, I already have "haveged" installed, to provide sufficient
entropy (I saw that the possible lack of entropy might be a problem in
some cases)...
If I boot in recovery mode and then select "resume", everything works.
So, what is going on ?
Any help would be appreciated...
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg 1:7.7+13ubuntu3
ProcVersionSignature: Ubuntu 4.15.0-29.31~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-29-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CurrentDesktop: KDE
Date: Fri Jul 27 10:40:31 2018
InstallationDate: Installed on 2018-07-04 (22 days ago)
InstallationMedia: Kubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64
(20180228)
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
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