I can confirm that behavior. On my acer TravelMate 370 I can see that in
messages:
[...]
Jul 24 14:30:53 brain kernel: [16865.528000] psmouse.c: TouchPad at
isa0060/serio4/input0 lost sync at byte 1
Jul 24 14:30:53 brain kernel: [16865.528000] psmouse.c: TouchPad at
isa0060/serio4/input0 lost sync at byte 1
Jul 24 14:30:53 brain kernel: [16865.528000] psmouse.c: issuing reconnect
request
Jul 24 14:35:24 brain kernel: [17136.924000] psmouse.c: TouchPad at
isa0060/serio4/input0 lost synchronization, throwing 3 bytes away.
[...]
Soundsystem or disk seems not to be effected by this issue. The freeze takes
some seconds up to some minutes. It can be 'unfreezed' immediatly by pushing
the laptop lid button.
Sopping init's acpi services does not help, as it does removing asus_acpi.
uname -a
Linux brain 2.6.20-16-generic #2 SMP Thu Jun 7 20:19:32 UTC 2007 i686 GNU/Linux
** Changed in: Ubuntu
Status: Invalid => New
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When my laptop access acpi subsystem the mouse, sound, ecc.. stop working
https://bugs.launchpad.net/bugs/50188
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