Encountered the same issue today. Updated from 16.04 to 18.04 on a SuperMicro server with ASPEED AST 2400 VGA controller. The boot console scrolling was very slow after the update and X11 performance was unusable. Enabled the "proposed" apt feed and updated to 4.15.0-44-generic kernel. Can confirm that console performance is back to normal again.
-- 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 Committed Status in linux source package in Cosmic: Fix Committed 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
