[mythtv-users] Hauppauge HD-PVR trials and tribulations.

[Andrew C. (AFPup) Stadt]

On 20/12/2014 5:00 PM, georgia_tech_swagger wrote:
> I figured I would post this to the list in the hopes it would help 
> somebody else as much as me, as most of the similar results I found 
> trying to solve this problem were old threads on this list.
>
> My HD-PVR was running just fine on my old X58 Core i7 920 system.  I 
> just upgraded to X99 on a Core i7 5820k. An my HD-PVR went nuts on the 
> new machine.
>
> First ... some migration tips:
> - Don't forget to make sure your Storage Directory has proper 
> permissions for user and/or group (depending on distro) mythtv
> - Don't forget to include your change channel script if you're 
> controlling a converter box with a blaster like I am.  If the script 
> isn't there, there is no error what-so-ever... just silent failure.  
> That one was a PITA to figure out.
>
> So ... it would work but hard lock up the HD-PVR, typically in less 
> than 5 minutes, but sometimes taking 15-20 minutes.  I tried the usual 
> myriad of Google suggestions with mixed success:
> - Overheating?  No.  I keep it fairly chilly in the winter.
> - Crap capacitors in power brick?  No.  Was working just fine previously.
> - Try using irqbalance?  This actually helped double the time to lock 
> but did not fix it.
> - Try using a USB2 instead of USB3 port?  This actually helped double 
> the time to lock but did not fix it.
> - Try disabling USB3 on the motherboard?  I haven't done this.  And 
> REALLY don't want to unless it is the full on last resort.
> - Try upgrading firmware of HD-PVR?   I havne't done this.  I don't 
> have immediate access to a Windows box. I believe I'm using 0x1e
> - Make sure you're not using an old kernel?   I tried 3.16.5-gentoo 
> first.  Horror show.  I am now using 3.17.6 ... which seems to greatly 
> improve things.  In my first test I got up to about 40 minutes before 
> lock up.  I'm in the second test now.
>
> The logging from mythfrontend, mythbackend, and modprobe hdpvr 
> hdpvr_debug=7 aren't particularly helpful.   The HDPVR in debug would 
> return:
>
> config call request for value 0x800 returned -110
>
> Right before that happened you'd get a steady stream of calling for 
> buffer 1 ... but immediately before that error you'd get call for 
> buffer 1 immediately followed by call for buffer 2.  And that is, as 
> far as I can see in the blur of those calls going by, the only time 
> that happens... right before the error.
>
> In mythbackend you would get:
>
> "Poll giving up 2"
> "Device error detected "
>
> I welcome all suggestions/advice/debug tips.  It seems most likely to 
> be a kernel issue in the driver and/or xhci.   My old X58 system was 
> on kernel 3.10 ... but I cannot downgrade that far as I need at least 
> kernel 3.15/3.16 for critical patches for the soundcard on my Asus X99 
> Pro motherboard (ALC1150 Intel HD).
>
>
Probably not going to like this answer, but I ended up having to 
blacklist the xhci driver, which in my case was not a big deal as I 
don't *need* usb3 on that machine. I tried a couple different 
aftermarket usb cards (PCIe) to see if that would help, but as soon as 
the xhci driver got loaded, my troubles would begin.  Haven't tried in a 
while, but its been working well for the past few months, so I haven't 
wanted to screw with it.


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