Hi,
using a Nova-T dvb card, I get the following in /var/log/messages...
22:09:54 kernel: cx88_wakeup: 2 buffers handled (should be 1)
22:09:57 kernel: cx88_wakeup: 2 buffers handled (should be 1)
22:10:06 kernel: cx88_wakeup: 2 buffers handled (should be 1)
22:10:09 kernel: cx88_wakeup: 2 buffers handled (should be 1)
22:10:12 kernel: cx88_wakeup: 2 buffers handled (should be 1)
22:10:15 kernel: cx88_wakeup: 2 buffers handled (should be 1)
...every few seconds while watching TV with xine or other dvb-apps. The
event results in a visible interruption of the video stream.
Looking on the net for solutions, I found these suggestions:
- changing PCI latency in the BIOS settings
- putting the card into a different PCI slot
- using "pci=routeirq" or "pci=noacpi" kernel boot parameters
I tried all these, but it did NOT help.
So, where should I look for solutions now?
The system is an Intel 965 chipset mainboard, running a default Ubuntu
"Feisty" 7.04 with its stock kernel (package 2.6.20-15-generic).
The dvb card is fine, it works without these problems with a different
mainboard.
Hope this info helps:
------------------------------------------
# egrep "CPU|cx88" /proc/interrupts
CPU0 CPU1
23: 21861 407216 IO-APIC-fasteoi cx88[0], cx88[0], HDA Intel
------------------------------------------
# lspci -v
07:01.0 Multimedia video controller: Conexant CX23880/1/2/3 PCI Video
and Audio
Subsystem: Hauppauge computer works Inc. Unknown device 9002
Flags: bus master, medium devsel, latency 64, IRQ 23
Memory at 92000000 (32-bit, non-prefetchable) [size=16M]
Capabilities: [44] Vital Product Data
Capabilities: [4c] Power Management version 2
07:01.2 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and
Audio Decode
Subsystem: Hauppauge computer works Inc. Nova-T DVB-T Model 909
Flags: bus master, medium devsel, latency 64, IRQ 23
Memory at 91000000 (32-bit, non-prefetchable) [size=16M]
Capabilities: [4c] Power Management version 2
07:01.4 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and
Audio Decode
Subsystem: Hauppauge computer works Inc. Nova-T DVB-T Model 909
Flags: bus master, medium devsel, latency 64, IRQ 10
Memory at 90000000 (32-bit, non-prefetchable) [size=16M]
Capabilities: [4c] Power Management version 2
------------------------------------------
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