Public bug reported:
While in use from minutes to hours, the cursor disappears and the
buttons stop working. Attaching another mouse to a different USB ports
restores functionality , but the original mouse stays dead. This
behaviour has been discussed in Askubuntu #69594, but solutions there
did not prevent hanging on this system.
Been pecking away at this issue for a few years now. Still occurs
annoyingly frequently on a HP DV7 AMD system running updated 12.04.3
upgraded to 3.11-0-15-generic kernel.
This time when it happened, looked at the dmesg outputs. They all showed
a very recent
type=1400 audit(1390858876.548:75): apparmor="DENIED"
operation="capable" parent=1 profile="/usr/sbin/cupsd" pid=1249
comm="cupsd" pid=1249 comm="cupsd" capability=36
capname="block_suspend"
There was no printing occurring. No printer is connected to this system
(it prints via another (XP) system via network), and there are no other
USB devices attached except for a powered-down HDD..
Figured the next thing to try was disabling apparmor for cups. Since
doing that, the mouse remains working.
Wild guess here is that something in the cupsd profile is triggering for
a dangerous behaviour of a USB printer which can be mistakenly triggered
by a USB mouse. (Launchpad 1199933 discusses the issue around
block_suspend and why I couldn't just shut down that single rule.)
** Affects: apparmor (Ubuntu)
Importance: Undecided
Status: New
** Tags: mouse usb
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https://bugs.launchpad.net/bugs/1273806
Title:
mouse dies intermittently until cold reboot
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