libglvnd0/libegl installed in Ubuntu 18.04 breaks graphics drivers and forces LLVMpipe driver on i915 systems
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
ubiquity (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
This bug is in ubiquity and in libglvnd0/libegl1:
a) Upgrading from artful to bionic installs libglvnd0 and libegl1 when they aren't needed;
b) having libglvnd0/libegl1 installed breaks EGL on Intel-graphics systems so you get llvmpipe as the video driver. This means you can't choose Wayland for gnome-shell, but instead are forced into X with software rendering.
Original description:
I upgraded to 18.04 and I no longer get an option to run a wayland session (17.10 offered both the default ubuntu wayland session and xorg on this laptop).
gnome-shell runs under the llvmpipe driver. (Unity used to run when I first upgraded, but now gnome-shell is the only option because the gdm login screen offers no login options.)
The upgrade did force me to remove bumblebee and nvidia, but afterwards I manually reinstalled bumblebee and nvidia-387 and reset to using intel via prime-select (installing nvidia changes some of the symlinks so that gnome-shell no longer boots, but "sudo prime-select intel" fixes this).
The nvidia-387 modules are blacklisted in /etc/modprobe.d, and bumblebee isn't reporting any errors - bbswitch reports that the nvidia card is off, so I don't think it's an issue with hybrid graphics. (primusrun does work, as well.)
Attached are the mutter logs that I generated via the environment variables mentioned in https:/
Window manager warning: Failed to create renderer: Failed to initialize renderer: Missing extensio
n for GBM renderer: EGL_KHR_
EGL_EXT_device_base
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.26.2-0ubuntu1
Uname: Linux 4.14.0-
ApportVersion: 2.20.8-0ubuntu1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sun Nov 19 10:28:10 2017
DisplayManager: gdm3
InstallationDate: Installed on 2017-08-16 (94 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
JournalErrors:
Error: command ['journalctl', '-b', '--priority=
Users in the 'systemd-journal' group can see all messages. Pass -q to
turn off this notice.
No journal files were opened due to insufficient permissions.
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to bionic on 2017-11-17 (1 days ago)
Here's the output from glxinfo in case that helps.