I see now, thanks.
This appears to be a kernel regression relating to 'ast' performance:
04:00.0 VGA compatible controller: ASPEED Technology, Inc. ASPEED Graphics
Family (rev 21)
Subsystem: ASUSTeK Computer Inc. ASPEED Graphics Family
Kernel driver in use: ast
Kernel modules: ast
** Summary changed:
- server console output extremely slow after upgrade to 18.04
+ ASPEED server console output extremely slow after upgrade to 18.04
** Package changed: ubuntu => linux (Ubuntu)
** Tags added: regression-release
** Changed in: linux (Ubuntu)
Status: Incomplete => New
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https://bugs.launchpad.net/bugs/1808183
Title:
ASPEED server console output extremely slow after upgrade to 18.04
Status in linux package in Ubuntu:
New
Bug description:
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)
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