I reported a similar problem which got dup'd to this bug. Not certain
they are related yet, but I do have one other detail to add. If I 'sudo
rmmod gspca_vc032x" the gnome-power-manager wakeups fall in frequency.
I do think there may be another problem with gnome-power-manager. If I strace
gnome-power-manager, I get:
socket(PF_FILE, SOCK_STREAM, 0) = 3
connect(3, {sa_family=AF_FILE, path="/tmp/.X11-unix/X0"}, 110) = 0
getpeername(3, {sa_family=AF_FILE, path="/tmp/.X11-unix/X0"}, [20]) = 0
...
gettimeofday({1224875772, 941304}, NULL) = 0
poll([{fd=4, events=POLLIN}, {fd=3, events=POLLIN}, {fd=8,
events=POLLIN|POLLPRI}, {fd=12, events=POLLIN|POLLPRI}, {fd=13,
events=POLLIN|POLLPRI}, {fd=14, events=POLLIN|POLLPRI}, {fd=17, events=POLLIN},
{fd=10, events=POLLIN|POLLPRI}, {fd=11, events=POLLIN}, {fd=15,
events=POLLIN}], 10, 100) = 0
gettimeofday({1224875773, 44717}, NULL) = 0
read(3, 0xa0b05d4, 4096) = -1 EAGAIN (Resource temporarily
unavailable)
gettimeofday({1224875773, 44956}, NULL) = 0
And repeat the poll, gtod, read, gtod loop.
So, a 100mSec does in fact seem too short, but it is no longer caught by
powertop once I remove the camera driver for my Sony laptop. I can keep
powertop up and gnome-power-manager running with no ill effect.
--
gnome-power-manager is generating excessive interupts
https://bugs.launchpad.net/bugs/284483
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