Tuesday, December 15, 2009

MythBuntu 9.10 Quickly Dying Due to missing PCHDTV firmware

So, I have been pretty unhappy with my MythTV for the last week, as something was seriously wrong with it. It would work for a while and then performance would collapse to the point I couldn't even SSH into it. Apparently, there was a massive memory leak, and the swap became exhausted resulting in the kernel doing nothing but try to find a few extra bytes.

This was after I pushed the button to upgrade to 9.10. And if there is anything I less want to do is spend more time tweaking Linux.

Anyway, I took a few minutes this morning to look through /var/log/messages and found it was jam packed with:
...
Dec 14 06:53:40 MythTV kernel: [25073.152929] or51132: No firmware uploaded(timeout or file not found?)
Dec 14 06:53:40 MythTV kernel: [25073.653032] or51132: Waiting for firmware upload(dvb-fe-or51132-vsb.fw)...
Dec 14 06:53:40 MythTV kernel: [25073.653042] cx8800 0000:02:0c.0: firmware: requesting dvb-fe-or51132-vsb.fw
Dec 14 06:53:41 MythTV kernel: [25073.902202] or51132: No firmware uploaded(timeout or file not found?)
Dec 14 06:53:41 MythTV firmware.sh[23812]: Cannot find firmware file 'dvb-fe-or51132-vsb.fw'
Dec 14 06:53:41 MythTV kernel: [25074.401098] or51132: Waiting for firmware upload(dvb-fe-or51132-vsb.fw)...
Dec 14 06:53:41 MythTV kernel: [25074.401109] cx8800 0000:02:0c.0: firmware: requesting dvb-fe-or51132-vsb.fw
Dec 14 06:53:41 MythTV firmware.sh[23823]: Cannot find firmware file 'dvb-fe-or51132-vsb.fw'
Dec 14 06:53:41 MythTV kernel: [25074.780264] or51132: No firmware uploaded(timeout or file not found?)
Dec 14 06:53:42 MythTV kernel: [25075.281031] or51132: Waiting for firmware upload(dvb-fe-or51132-vsb.fw)...
Dec 14 06:53:42 MythTV kernel: [25075.281042] cx8800 0000:02:0c.0: firmware: requesting dvb-fe-or51132-vsb.fw
Dec 14 06:53:42 MythTV firmware.sh[23839]: Cannot find firmware file 'dvb-fe-or51132-vsb.fw'
Dec 14 06:53:42 MythTV kernel: [25075.503654] or51132: No firmware uploaded(timeout or file not found?)
Dec 14 06:53:43 MythTV kernel: [25076.001099] or51132: Waiting for firmware upload(dvb-fe-or51132-vsb.fw)...
Dec 14 06:53:43 MythTV kernel: [25076.001110] cx8800 0000:02:0c.0: firmware: requesting dvb-fe-or51132-vsb.fw
Dec 14 06:53:43 MythTV kernel: [25076.266695] or51132: No firmware uploaded(timeout or file not found?)
Dec 14 06:53:43 MythTV firmware.sh[23850]: Cannot find firmware file 'dvb-fe-or51132-vsb.fw'
...

Googling "Cannot find firmware file" dvb gave me this forum post which very helpfully gave the proper command line solution:
sudo apt-get install linux-firmware-nonfree
Now my MythTV can go 20 minutes without grinding to a halt.

Now, as to whether a missing firmware to a tuner card should bring a linux distribution to a halt is another thing entirely.
 
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