[mythtv-users] Issues running kernel 4.3.x with HD-PVR's / LIRC?

[Michael]

On 01/30/2016 08:23 PM, Matt Goebel wrote:
> Hi All,
>
> Is anyone else experiencing issues with their HD-PVR's and/or LIRC 
> under the 4.3.x kernel?  I've had a fairly stable setup with 2x 
> HD-PVR's and a mceusb IR receiver/blaster for a several years.  After 
> recently upgrading to Fedora 23 from 22, and with it the 4.3 I've had 
> some show stopper issues.  The HD-PVR's will lock up after a few 
> minutes of use consistently and need a power cycle to fix and my IR 
> receiver started acting erratically, recording multiple key presses 
> when they were only pressed once and not detecting others. I believe 
> the issue is all related to the HD-PVR's however as I have another 
> Fedora 23 system running 4.3.3 with an identical mceusb IR 
> receiver/remote combination (but no HD-PVR's) which has no problems at 
> all (and yes I've swapped the hardware).  It seems someone has 
> reported a similar/same issue with Debian and 4.3: 
> https://lists.debian.org/debian-kernel/2016/01/msg00235.html.
>
> As a workaround I've downgraded to a 4.2 kernel and all my HD-PVR/LIRC 
> issues went away. Although, after 8-9 days both of my HD-PVR's stopped 
> getting a lock at the same time and the only fix I was able to find 
> was a reboot.  Nothing in logs that helped either.  I've had the odd 
> lockup every once in awhile but never that happen so I've not sure 4.2 
> works entirely reliably either.
>


Funny you should mention this.  I am sitting at my desk trying to debug 
this very same issue right now.

I am also on Fedora 23 x86_64 w/ 2 HDPVRs and the 4.3.x kernels.  I am 
not using lirc at all however.  My FC23 system was very stable with the 
4.2.x kernels.

I just downloaded the last 4.2.x kernel from Koji in hopes of resolving 
the hangs based on the same Debian error report.

In my logs for mythbackend, I am seeing this error:

2016-01-30 10:01:37.093858 E [10880/13733] DeviceReadBuffer 
recorders/DeviceReadBuffer.cpp:543 (Poll) - DevRdB(/dev/v4l/hdpvr0): 
Poll giving up 2
2016-01-30 10:01:37.093931 E [10880/6576] RecThread 
recorders/mpegrecorder.cpp:1044 (run) - MPEGRec[7](/dev/v4l/hdpvr0): 
Device error detected
2016-01-30 10:01:38.093868 W [10880/6576] RecThread 
recorders/mpegrecorder.cpp:829 (SetV4L2DeviceOptions) - 
MPEGRec[7](/dev/v4l/hdpvr0): Unable to set audio input.
2016-01-30 10:01:40.093906 W [10880/6576] RecThread 
recorders/mpegrecorder.cpp:1349 (StartEncoding) - 
MPEGRec[7](/dev/v4l/hdpvr0): StartEncoding failed
                         eno: Connection timed out (110)
2016-01-30 10:01:43.595947 E [10880/13737] DeviceReadBuffer 
recorders/DeviceReadBuffer.cpp:543 (Poll) - DevRdB(/dev/v4l/hdpvr0): 
Poll giving up 2
2016-01-30 10:01:43.596025 E [10880/6576] RecThread 
recorders/mpegrecorder.cpp:1044 (run) - MPEGRec[7](/dev/v4l/hdpvr0): 
Device error detected
2016-01-30 10:01:44.595835 W [10880/6576] RecThread 
recorders/mpegrecorder.cpp:829 (SetV4L2DeviceOptions) - 
MPEGRec[7](/dev/v4l/hdpvr0): Unable to set audio input.
2016-01-30 10:01:46.595872 W [10880/6576] RecThread 
recorders/mpegrecorder.cpp:1349 (StartEncoding) - 
MPEGRec[7](/dev/v4l/hdpvr0): StartEncoding failed
                         eno: Connection timed out (110)
2016-01-30 10:01:50.097904 E [10880/13738] DeviceReadBuffer 
recorders/DeviceReadBuffer.cpp:543 (Poll) - DevRdB(/dev/v4l/hdpvr0): 
Poll giving up 2
2016-01-30 10:01:50.097982 E [10880/6576] RecThread 
recorders/mpegrecorder.cpp:1044 (run) - MPEGRec[7](/dev/v4l/hdpvr0): 
Device error detected
2016-01-30 10:01:51.097800 W [10880/6576] RecThread 
recorders/mpegrecorder.cpp:829 (SetV4L2DeviceOptions) - 
MPEGRec[7](/dev/v4l/hdpvr0): Unable to set audio input.
2016-01-30 10:01:53.097962 W [10880/6576] RecThread 
recorders/mpegrecorder.cpp:1349 (StartEncoding) - 
MPEGRec[7](/dev/v4l/hdpvr0): StartEncoding failed
                         eno: Connection timed out (110)

during the lockups.

I am not really sure where to go other than open a ticket with the 
Fedora team.

Michael

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