Comment 0 for bug 1768615

Hello,

in Ubuntu 18.04, after upgrade from 17.10, when I login to Ubuntu desktop via X.org, a wrong display driver is used (llvmpipe). It will cause a horribly poor performance due to software acceleration.
When I switch to Wayland, the correct driver (intel) with enabled hardware acceleration is loaded.

I have two exactly the same laptops, the same issue on both.

Hardware:
HP ProBook 4330s
Intel i5-2430M
8GB RAM
512GB SDD
Kernel: 4.15.0-20-generic

Installed packages:

ii intel-gpu-tools 1.22-1
ii intel-microcode 3.20180312.0~ubuntu18.04.1
ii libdrm-intel1:amd64 2.4.91-2
ii libdrm-intel1:i386 2.4.91-2

ii libegl-mesa0:amd64 18.0.0~rc5-1ubuntu1
ii libegl1-mesa:amd64 18.0.0~rc5-1ubuntu1
ii libgl1-mesa-dri:amd64 18.0.0~rc5-1ubuntu1
ii libgl1-mesa-dri:i386 18.0.0~rc5-1ubuntu1
ii libgl1-mesa-glx:amd64 18.0.0~rc5-1ubuntu1
ii libgl1-mesa-glx:i386 18.0.0~rc5-1ubuntu1
ii libglapi-mesa:amd64 18.0.0~rc5-1ubuntu1
ii libglapi-mesa:i386 18.0.0~rc5-1ubuntu1
ii libgles2-mesa:amd64 18.0.0~rc5-1ubuntu1
ii libglu1-mesa:amd64 9.0.0-2.1build1
ii libglu1-mesa:i386 9.0.0-2.1build1
ii libglx-mesa0:amd64 18.0.0~rc5-1ubuntu1
ii libglx-mesa0:i386 18.0.0~rc5-1ubuntu1
ii libosmesa6:amd64 18.0.0~rc5-1ubuntu1
ii libosmesa6:i386 18.0.0~rc5-1ubuntu1
ii libwayland-egl1-mesa:amd64 18.0.0~rc5-1ubuntu1
ii mesa-utils 8.4.0-1
ii mesa-va-drivers:amd64 18.0.0~rc5-1ubuntu1
ii mesa-vdpau-drivers:amd64 18.0.0~rc5-1ubuntu1

ii libva-wayland2:amd64 2.1.0-3
ii libwayland-client0:amd64 1.14.0-2
ii libwayland-cursor0:amd64 1.14.0-2
ii libwayland-egl1-mesa:amd64 18.0.0~rc5-1ubuntu1
ii libwayland-server0:amd64 1.14.0-2
ii xwayland 2:1.19.6-1ubuntu4

ii xserver-xorg-video-intel 2:2.99.917+git20171229-1
ii xorg-docs-core 1:1.7.1-1.1
ii xserver-xorg 1:7.7+19ubuntu7
ii xserver-xorg-core 2:1.19.6-1ubuntu4
ii xserver-xorg-input-all 1:7.7+19ubuntu7
ii xserver-xorg-input-libinput 0.27.1-1
ii xserver-xorg-input-wacom 1:0.36.1-0ubuntu1
ii xserver-xorg-legacy 2:1.19.6-1ubuntu4
ii xserver-xorg-video-all 1:7.7+19ubuntu7
ii xserver-xorg-video-amdgpu 18.0.1-1
ii xserver-xorg-video-ati 1:18.0.1-1
ii xserver-xorg-video-fbdev 1:0.4.4-1build6
ii xserver-xorg-video-intel 2:2.99.917+git20171229-1
ii xserver-xorg-video-nouveau 1:1.0.15-2
ii xserver-xorg-video-qxl 0.1.5-2build1
ii xserver-xorg-video-radeon 1:18.0.1-1
ii xserver-xorg-video-vesa 1:2.3.4-1build3
ii xserver-xorg-video-vmware 1:13.2.1-1build1