Also lshw reports VGA controller as *unclaimed*.
sudo lshw -c display ~ *-display UNCLAIMED description: VGA compatible controller product: 4th Gen Core Processor Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 06 width: 64 bits clock: 33MHz capabilities: msi pm vga_controller bus_master cap_list configuration: latency=0 resources: memory:f5800000-f5bfffff memory:e0000000-efffffff ioport:f000(size=64) memory:c0000-dffff The xorg intel package is installed: Package: xserver-xorg-video-intel Version: 2:2.99.917+git20171229-1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1767468 Title: Upgrade from 16.04 to 18.04, then uninstalling unity disables hardware acceleration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nux/+bug/1767468/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs