Please post this in the forums at ubuntuforums.com or at askubuntu.com.
Also, please check to see if this is happening with any of the other
flavors, especially Xubuntu. For now, I have to mark this bug as
incomplete since further information may be required, such as your
specific hardware information. Moreover, the bug has to be targeted at
a specific package and not the Ubuntu flavor in general, so until there
is further information this bug is incomplete.
** Changed in: ubuntustudio
Importance: Undecided => Low
** Changed in: ubuntustudio
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1787857
Title:
USB mouse cursor lags after random time of correct behaviour
Status in Ubuntu Studio:
Incomplete
Bug description:
I installed Ubuntu Studio 18.04.1 LTS. After the first apt-get update I
noticed the following behaviour:
after havig logged in, my USB mouse works normally for about ten seconds,
then the cursor starts lagging a lot which makes the mouse pretty much unusable.
The last dmesg always contain lines these: (more in attached file)
[<000000009e659b0c>] irq_default_primary_handler threaded
[<00000000fa56edac>] usb_hcd_irq
[<000000009e659b0c>] irq_default_primary_handler threaded
[<00000000fe1afb05>] _rtl_pci_interrupt [rtl_pci]
Disabling IRQ #18
Out of frustration & curiosity I disabled most autostart apps
(Settings > Session ... > Autostart) and re-enabled them after
rebooting. Since then I rarely encounter the lagging cursor. If I open
Settings > Mouse & Touchpad and toggle any option on/off the cursor
starts lagging.
How can make the cursor work reliably?
Some comment in dmesg mentions "irqpoll" boot option
Ubuntu Studio 18.04.1
4.15.0-20-lowlatency #21-Ubuntu SMP PREEMPT
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