I've just done a clean install of 18.04 and have the same issue where running 18.04 off a boot usb stick works flawlessly, however after installing on the hard drive the login screen is very laggy and once I enter my password the screen resolution is all messed up and unreadable.
If I reboot and hold down shift to get the Grub menu and choose Advanced then recovery mode and then without altering anything I choose resume from the recovery menu and the login screen works perfectly. So I assume the fix hasn't been rolled out yet as I've run the updater and there's nothing that needs updating on my system. -- 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/1808183 Title: ASPEED server console output extremely slow after upgrade to 18.04 Status in linux package in Ubuntu: Triaged Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Released Bug description: ===SRU Justification=== [Impact] Server console is extremely slow on ast, after the upgrade from 16.04 to 18.04. [Fix] Remove firmware/bootloader configured framebuffer device before probing. [Test] User confirmed the patch fixes the issue. [Regression Potential] Low. The fix is in stable tree, limits to one specific device, and other DRM drivers already do this for a while. ===Original Bug Report=== After the upgrade from 16.04 to 18.04 my server console is extremely slow. It looks similar to the youtube clips mentioned in the problem described here: https://ubuntuforums.org/showthread.php?t=2399941 My server is attached to a KVM switch with VGA cable to a 1920x1080 LCD. It runs on an ASUS P9D-X board. Before the upgrade everything was fine. Now it is so slow that it sometimes even hangs during boot and goes into an emergency console where I just can do a ctrl-alt-delete as described in bug 1802469 ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg (not installed) ProcVersionSignature: Ubuntu 4.15.0-42.45-generic 4.15.18 Uname: Linux 4.15.0-42-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 Date: Wed Dec 12 17:07:48 2018 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to bionic on 2018-10-11 (62 days ago) --- ProblemType: Bug AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Dec 15 07:22 seq crw-rw---- 1 root audio 116, 33 Dec 15 07:22 timer AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay' ApportVersion: 2.20.9-0ubuntu7.5 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 'arecord' AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=99dd75dc-dc37-4970-be5a-79d9244a3bcc IwConfig: eth0 no wireless extensions. eth1 no wireless extensions. lo no wireless extensions. MachineType: ASUSTeK COMPUTER INC. P9D-X Series Package: linux (not installed) PciMultimedia: ProcFB: 0 astdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-42-generic root=UUID=0fa1f208-3a7b-44ca-9f85-e7349a3b1844 ro nosplash ProcVersionSignature: Ubuntu 4.15.0-42.45-generic 4.15.18 RelatedPackageVersions: linux-restricted-modules-4.15.0-42-generic N/A linux-backports-modules-4.15.0-42-generic N/A linux-firmware 1.173.2 RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill' Tags: bionic Uname: Linux 4.15.0-42-generic x86_64 UnreportableReason: This report is about a package that is not installed. UpgradeStatus: Upgraded to bionic on 2018-10-11 (64 days ago) UserGroups: _MarkForUpload: False dmi.bios.date: 10/13/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0901 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P9D-X Series dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 17 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0901:bd10/13/2014:svnASUSTeKCOMPUTERINC.:pnP9D-XSeries:pvrRev1.xx:rvnASUSTeKCOMPUTERINC.:rnP9D-XSeries:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct17:cvrToBeFilledByO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: P9D-X Series dmi.product.version: Rev 1.xx dmi.sys.vendor: ASUSTeK COMPUTER INC. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1808183/+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
