[mythtv-users] Any way to tell which tuner card might be bad?

[Dan Wilga]

IOBOUND messages mean that data could not be written to the disk fast 
enough. Either you're trying to do too many things with that disk at 
once, or there's some sort of disk error. A disk error would probably 
show up in other ways, though.

Is your recordings directory on the same hard drive as your MySQL 
database? That could cause this. Are there other things going on at the 
same time, such as commflag or transcode jobs? How many programs are you 
recording at once?

Is the recordings disk network-attached? If so, you could be limited by 
the speed of your Ethernet connection or have a bad NIC. (I ran into the 
bad NIC problem and had this exact symptom.)
-- 
Dan Wilga                                                        "Ook."