I look a quick look at your posted data. It does seem odd that your system starts out configuring the drm and then uses fb. Do you have anything custom on your boot line, like some video parameters? E.g. 'cat /proc/cmdline'. More grabbing at straws.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1768610 Title: No acceleration after upgrading to 18.04: gnome-session-check- accelerated incorrectly picks llvmpipe Status in gnome-session package in Ubuntu: Confirmed Bug description: After an upgrade from 17.10 to 18.04, I noticed that all gnome windows animations were gone. After some digging, it seems that gnome-session incorrectly assumes that my graphics has no acceleration, when in fact it does: it's a i5-2520M CPU @ 2.50GHz with Intel integrated graphics (i915 driver). I've tried this with and without the xserver-xorg-video-intel package (a.k.a. Intel driver) with the same behavior. The output of gnome-session-check-accelerated is: llvmpipe (LLVM 6.0, 256 bits) however the system should have DRM 2.0 capability. GL checks (e.g. glxinfo, glxgears produce the expected output from a working DRM system). mesa-utils and mesa-utils-extra are both installed. I can't find a work around. Perhaps there is something wrong with my install/upgrade? Everything else works fine, although the graphical transitions are no longer smooth. But it would be nice to restore the expected behavior. I have attached the log of 'journalctl -b0' ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gnome-session 3.28.1-0ubuntu2 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Wed May 2 13:06:00 2018 EcryptfsInUse: Yes InstallationDate: Installed on 2016-04-22 (739 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: gnome-session UpgradeStatus: Upgraded to bionic on 2018-04-27 (5 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/1768610/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

