[mythtv-users] Problems with P5Q motherboard and cx88 tuner

[Greg Lucas-Smith]

Thanks,

 That worked a treat, moved from PCI 1 to PCI 2 and now everything is fine.

Greg

On Sun, Oct 4, 2009 at 10:45 PM, George Mari
<george_mythusers at mari1938.org>wrote:

> On 10/04/2009 06:17 AM, Greg Lucas-Smith wrote:
> <deleted>
>
>>   I have 2 Leadtek DTV1000s that have sered me very well for a few years
>> now.  The one in PCI slot 1 works, the one in the other slot doesn't and I
>> get a "Tuner is asleep" message from myth.  If I swap them around, or only
>> have one, PCI slot 1 always works.  Does anyone have any ideas how to
>> resolve this?  It doesn't happen all of the time, about 2 reboots in 3
>> will
>> present the problem and on the third it will perform as normal.
>>
>>  <deleted>
>
> I think this is your problem:
>
>  and I get this message in my dmesg:
>>
>>  <deleted>
>
>> [   13.805734] IRQ 16/cx88[1]: IRQF_DISABLED is not guaranteed on shared
>> IRQs
>>
> <deleted>
>
>> [   13.806203] IRQ 18/cx88[0]: IRQF_DISABLED is not guaranteed on shared
>> IRQs
>>
>
> Your motherboard is messing up or somehow restricting IRQ assignmemnts or
> IRQ sharing between the two cards, it looks like.  One of your cards is on
> IRQ 16, and the other is on IRQ 18 - but for some reason, the cx88 driver
> still thinks they are on a shared IRQ somehow?
>
> Take the first card out of PCI slot 1 - try slots 2 and 3, or some other
> combination without slot 1.
>
> Read your motherboard manual for information on how it deals with shared
> IRQs, check your BIOS options.  See if there is a BIOS update available, or
> even consider downgrading the BIOS, if possible.
>
> Motherboard bugs are not uncommon.  I recently had to re-purpose a Socket
> 754 board that I was planning on using as a consolidated server (with 6 PCI
> slots) but I had to change plans because it would not allow any mass storage
> card I had - SCSI or SATA - to co-exist with my PVR-350.  Somehow the BIOS
> would not assign resources to both cards properly while they co-existed in
> any combination of slots.  Either card was fine without the other - PVR-350
> with no storage cards, or storage cards without PVR-350.  No more BIOS
> updates available for the motherboard, and the manufacturer appears to be
> out of business anyway.
>
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