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
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1787743 Title: Slow USB mouse input on linux-lowlatency To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1787743/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs