I have been experiencing an issue ever since I started using Debian (weird enough, never had this with Ubuntu):
With Debian Squeeze and now, with Wheezy after a while of running the system I get a short beep from my internal speaker. If I happen to have a terminal window open, I get the following warnings:
Message from syslogd@crysPC at [date and time]
kernel: [ 1328.168823] Disabling IRQ #16
dmesg "explains" a little bit:
[ 910.691991] irq 17: nobody cared (try booting with the "irqpoll" option)
[...] snipped [...]
[ 910.692097] Disabling IRQ #17
[ 1328.168705] irq 16: nobody cared (try booting with the "irqpoll" option)
[...] snipped [...]
[ 1328.168823] Disabling IRQ #16
In /proc/interrupts, I can see:
16: 200304 0 0 0 0 0 0 0 IO-APIC-fasteoi nouveau, eth0
17: 200003 0 0 0 0 0 0 0 IO-APIC-fasteoi firewire_ohci, snd_hda_intel
Everytime this happens, video performance dies (If I have compiz enabled this used to make all animations very slow and poor performance, and now, with Gnome3, animations are also very slow). Also, typing appears to have some weird lag (USB keyboard).
Unfortunately, this is as far as my hardware/Linux knowledge goes -- I really have no idea what is happening, or how to try and troubleshoot this.
Could anyone please help, if you have any suggestions as to what I could try to fix this?
Thank you in advance!
--
Regards,
Catalin Soare