kernel update breaks X server: /dev/dri/card0: failed to set DRM interface version 1.4: Permission denied

[Manuel López-Ibáñez]

Updating to linux-image-4.15.0-34-generic broke X at start-up.

[ 157.020] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
[ 157.021] (II) xfree86: Adding drm device (/dev/dri/card0)
[ 157.021] (EE) /dev/dri/card0: failed to set DRM interface version 1.4: Permission denied
[ 157.035] (EE) Screen 0 deleted because of no matching config section.
[ 157.035] (II) UnloadModule: "modesetting"
[ 157.035] (EE)
Fatal server error:
[ 157.035] (EE) Cannot run in framebuffer mode. Please specify busIDs for all framebuffer devices
[ 157.035] (EE)
[ 157.035] (EE)
Please consult the The X.Org Foundation support
         at http://wiki.x.org
 for help.
[ 157.035] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 157.035] (EE)
[ 157.059] (EE) Server terminated with error (1). Closing log file.

Reverting back to linux-image-4.15.0-33-generic fixed it.

By the way, the failsafe X did not offer this option and nothing offered worked for me. This felt like being back in the 90s...

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.15.0-34-generic 4.15.0-34.37~16.04.1
ProcVersionSignature: Ubuntu 4.15.0-33.36~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-33-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
Date: Wed Sep 12 20:28:27 2018
InstallationDate: Installed on 2018-04-20 (145 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
SourcePackage: linux-signed-hwe
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Po-Hsu Lin (cypressyew)]

Hello,

can you still reproduce this now with the latest kernel? (If yes, please attach the "lsb_release -a ; uname -a" output from a terminal here)

Thanks!

[Manuel López-Ibáñez (manuellopezibanez)]

No

On Wed, 3 Apr 2019, 04:30 Po-Hsu Lin, <email address hidden> wrote:

> Hello,
>
> can you still reproduce this now with the latest kernel? (If yes, please
> attach the "lsb_release -a ; uname -a" output from a terminal here)
>
> Thanks!
>
> ** Changed in: linux-signed-hwe (Ubuntu)
> Status: Confirmed => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1792213
>
> Title:
> kernel update breaks X server: /dev/dri/card0: failed to set DRM
> interface version 1.4: Permission denied
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1792213/+subscriptions
>

[Po-Hsu Lin (cypressyew)]

Closing this as per comment #4

Please feel free to open a new bug if you have encounter any issue in the future.