Today I installed Ubuntu Studio 18.10 64bit, after install I updated
4.18.0-18-lowlatency and now instead of what I observed in 4.15 kernels, see
that IRQ16 nobody cares does not occur and my mouse is OK. A780gm-a
motherboard , SB700.
Happier that I have progress but note I have IRQ18 nobody cares event and an
IRQ18 disabled occurring. Moving my mouse to the front panel exhibits same
laggy behavior.
$ cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 116 0 0 0 IO-APIC 2-edge timer
1: 0 0 775 0 IO-APIC 1-edge i8042
8: 0 0 0 1 IO-APIC 8-edge rtc0
9: 0 0 0 0 IO-APIC 9-fasteoi acpi
14: 0 0 0 0 IO-APIC 14-edge
pata_atiixp
15: 0 0 1476 0 IO-APIC 15-edge
pata_atiixp
16: 571 0 107 0 IO-APIC 16-fasteoi
ohci_hcd:usb3, ohci_hcd:usb4, snd_hda_intel:card0
17: 0 0 0 0 IO-APIC 17-fasteoi
ehci_hcd:usb1
18: 0 51217 0 0 IO-APIC 18-fasteoi
ohci_hcd:usb5, ohci_hcd:usb6, ohci_hcd:usb7, radeon
19: 59 0 0 32 IO-APIC 19-fasteoi
ehci_hcd:usb2, snd_hda_intel:card1
22: 9134 36093 0 0 IO-APIC 22-fasteoi
ahci[0000:00:11.0]
24: 0 0 0 17924 PCI-MSI 1048576-edge
enp2s0
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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/1787743
Title:
Slow USB mouse input on linux-lowlatency
Status in linux package in Ubuntu:
Confirmed
Bug description:
USB mouse input is very slow and "laggy" onscreen after switching over
from the generic 'linux' kernel to 'linux-lowlatency.'
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-lowlatency 4.15.0.32.34
ProcVersionSignature: Ubuntu 4.15.0-32.35-lowlatency 4.15.18
Uname: Linux 4.15.0-32-lowlatency x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: jeb 1710 F.... pulseaudio
/dev/snd/controlC1: jeb 1710 F.... pulseaudio
/dev/snd/controlC0: jeb 1710 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Sat Aug 18 12:41:52 2018
InstallationDate: Installed on 2018-08-17 (1 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
MachineType: BIOSTAR Group A880G+
ProcEnviron:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-32-lowlatency
root=UUID=a967adb1-1600-455b-8704-e2bf5de5081d ro quiet splash vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-4.15.0-32-lowlatency N/A
linux-backports-modules-4.15.0-32-lowlatency N/A
linux-firmware 1.173.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/21/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080016
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: A880G+
dmi.board.vendor: BIOSTAR Group
dmi.chassis.asset.tag: None
dmi.chassis.type: 3
dmi.chassis.vendor: BIOSTAR Group
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr080016:bd09/21/2011:svnBIOSTARGroup:pnA880G+:pvr:rvnBIOSTARGroup:rnA880G+:rvr:cvnBIOSTARGroup:ct3:cvr:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: A880G+
dmi.sys.vendor: BIOSTAR Group
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