I think I'm seeing the same problem; the systemctl command did not fix it for me. I've submitted my logs at https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video- intel/+bug/1772366
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1768497 Title: Upgrade from 17.10 to 18.04 lost native 3D hardware acceleration for intel UHD 620, laptop is XPS 9370 Status in linux package in Ubuntu: Incomplete Bug description: Hi, I did an upgrade via terminal yesterday, everything seemed to work fine but then I noticed very heavy CPU usage by gnome-shell. The problem is that the UHD card is not fully recognized, so it uses instead llvmpipe, so no native 3D acceleration :-( This was working great in 17.10 Some outputs which might be useful: ______________________________________ sudo lspci -nnk | grep -i vga -A3 00:02.0 VGA compatible controller [0300]: Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) Subsystem: Dell UHD Graphics 620 [1028:07e6] Kernel driver in use: i915 Kernel modules: i915 glxinfo | grep llv Device: llvmpipe (LLVM 6.0, 256 bits) (0xffffffff) OpenGL renderer string: llvmpipe (LLVM 6.0, 256 bits) ____________________________________ Pls let me know if providing more info would help. I am not sure if the driver is missing or if XORG is broken, please help. I am using XORG at the moment, Wayland freezes befpre desktop environment shows up (it was working in 17.10). Thanks! --- ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: santiago 1756 F.... pulseaudio /dev/snd/controlC1: santiago 1756 F.... pulseaudio CurrentDesktop: ubuntu:GNOME DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-02-22 (69 days ago) InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1) MachineType: Dell Inc. XPS 13 9370 Package: linux (not installed) ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic root=UUID=2446979d-5a7e-47f0-8993-0072227049ff ro resume=/dev/nvme0n1p4 resume_offset=28704768 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 RelatedPackageVersions: linux-restricted-modules-4.15.0-20-generic N/A linux-backports-modules-4.15.0-20-generic N/A linux-firmware 1.173 Tags: bionic Uname: Linux 4.15.0-20-generic x86_64 UpgradeStatus: Upgraded to bionic on 2018-04-30 (2 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 02/21/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.2.1 dmi.board.name: 0F6P3V dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.2.1:bd02/21/2018:svnDellInc.:pnXPS139370:pvr:rvnDellInc.:rn0F6P3V:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9370 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1768497/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
