[mythtv-users] HDPVR intermittent failure

John P Poet jppoet at gmail.com
Fri Jul 10 01:18:10 UTC 2020


On Thu, Jul 9, 2020 at 7:12 PM DryHeat122 <dryheat122 at gmail.com> wrote:

>
>
> On Thu, Jul 2, 2020, 6:00 PM DryHeat122 . <dryheat122 at gmail.com> wrote:
>
>>
>>
>> On Thu, Jul 2, 2020 at 6:53 AM Rick <rick at laity.ca> wrote:
>>
>>> On 7/2/2020 10:35 AM, DryHeat122 . wrote:
>>> >
>>> >
>>> > On Thu, Jul 2, 2020, 5:08 AM Jim <lists at morton.hrcoxmail.com
>>> > <mailto:lists at morton.hrcoxmail.com>> wrote:
>>> >
>>> >     On 7/1/2020 9:23 PM, DryHeat122 . wrote:
>>> >      >
>>> >      > On Sun, Jun 28, 2020 at 9:32 AM Greg <gregl at nycap.rr.com
>>> >     <mailto:gregl at nycap.rr.com>
>>> >      > <mailto:gregl at nycap.rr.com <mailto:gregl at nycap.rr.com>>> wrote:
>>> >      >
>>> >      >
>>> >      >     On 6/27/20 9:46 PM, DryHeat122 . wrote:
>>> >      >>     On Mon, May 11, 2020 at 12:59 PM DryHeat122 .
>>> >      >>     <dryheat122 at gmail.com <mailto:dryheat122 at gmail.com>
>>> >     <mailto:dryheat122 at gmail.com <mailto:dryheat122 at gmail.com>>>
>>> wrote:
>>> >      >>
>>> >      >>         On Mon, May 11, 2020 at 2:41 AM Stephen Worthington
>>> >      >>         <stephen_agent at jsw.gen.nz
>>> >     <mailto:stephen_agent at jsw.gen.nz> <mailto:stephen_agent at jsw.gen.nz
>>> >     <mailto:stephen_agent at jsw.gen.nz>>>
>>> >      >>         wrote:
>>> >      >>
>>> >      >>             On Sun, 10 May 2020 20:20:30 -0700, you wrote:
>>> >      >>
>>> >      >>             >On Sun, May 10, 2020, 7:58 PM Greg
>>> >     <gregl at nycap.rr.com <mailto:gregl at nycap.rr.com>
>>> >      >>             <mailto:gregl at nycap.rr.com
>>> >     <mailto:gregl at nycap.rr.com>>> wrote:
>>> >      >>
>>> >      >>             >Ok thanks I will investigate that.  But it's been
>>> >      >>             working fine with the
>>> >      >>             >current power source for like a year now, and
>>> others on
>>> >      >>             this list use it
>>> >      >>             >too.
>>> >      >>
>>> >      >>             <snip><https://forum.mythtv.org>
>>> >      >>
>>> >      >>
>>> >      >>         Thanks for all the suggestions.  I will investigate
>>> all of
>>> >      >>         them.  Something I do not see in here is an opinion
>>> that
>>> >     some
>>> >      >>         software problem could have evolved.  I was kind of
>>> thinking
>>> >      >>         of that as a possibility given that it worked fine for
>>> so
>>> >      >>         long then seems to be degrading.  OTOH I never thought
>>> >     of the
>>> >      >>         possibility that the USB connection could be
>>> degrading.  I'm
>>> >      >>         going to try Greg's connector, assuming I can get parts
>>> >      >>         during the Apocalypse.  Also, his link specifies Radio
>>> Shack
>>> >      >>         parts.  What's Radio Shack?!? ;-)
>>> >      >>
>>> >      >>
>>> >      >>     Well folks this is getting frustrating.  I addressed a
>>> possible
>>> >      >>     ventilation issue.  I also unplugged the power cord I had
>>> from
>>> >      >>     the Myth box USB and connected it to an old iPad charger
>>> >     rated at
>>> >      >>     5V/2A.  No help.  It wouldn't record anything, no matter
>>> how
>>> >     much
>>> >      >>     rebooting and power-cycling. So I concluded the HDPVR was
>>> hosed
>>> >      >>     and got a new one (more accurately, a replacement circuit
>>> board
>>> >      >>     for it).  Powered it with the same wall wart. Recorded
>>> great for
>>> >      >>     a day.  Just turned it on and I have failed recordings and
>>> it
>>> >      >>     won't respond when I try to manually play a channel.
>>> >     Reboot, and
>>> >      >>     it works fine, same pattern as before.
>>> >      >>
>>> >      >>     I finally got a molex connector and am still going to try
>>> what
>>> >      >>     Greg suggested, but I really don't think it's a power
>>> issue.
>>> >      >>     Apply makes good electronics and that wart has the same
>>> specs as
>>> >      >>     the power supply that comes with the HDPVR.  The HDPCR
>>> isn't
>>> >      >>     overheating.  It's not the HDPVR itself.  That only leaves
>>> the
>>> >      >>     software on the myth box.  Anyone have ideas how to
>>> troubleshoot
>>> >      >>     that?
>>> >      >>
>>> >      >>
>>> >      >      The next time it won't record,try to cat it and see if it
>>> >      >     responds.  This is the command I use,  cat /dev/video0 >
>>> test ..
>>> >      >     dmesg for the proper port it's connected to. This may help
>>> >     too see
>>> >      >     if it is the software or not..
>>> >      >
>>> >      >     I am curious were you got the motherboard? There used to be
>>> a
>>> >      >     place in Ohio (I believe) ,but they have gone out of
>>> business.
>>> >      >
>>> >      > It failed again (despite putting the conf file in place).
>>> Here's
>>> >     the
>>> >      > result:
>>> >      >
>>> >      > steve at steve-EP45-UD3P:~$ cat /dev/video0 > test.ts
>>> >      > cat: /dev/video0: Input/output error
>>> >      >
>>> >      > I don't know how to "dmesg for the proper port it's connected
>>> >     to."  I
>>> >      > think it's just connected to a USB port, but I don't know how to
>>> >     find
>>> >      > out which one. Can you be more specific?
>>> >      >
>>> >      >
>>> >     This works on my system
>>> >
>>> >     dmesg | grep pvr
>>> >     [    6.231302] hdpvr 2-2:1.0: firmware version 0x15 dated Jun 17
>>> 2010
>>> >     09:26:53
>>> >     [    6.452748] hdpvr 2-2:1.0: device now attached to video0
>>> >     [    6.452844] usbcore: registered new interface driver hdpvr
>>> >     docbuntu:~$
>>> >
>>> >
>>> > Ok next time it crashes I will try that.
>>> >
>>> >
>>>
>>> I think the latest firmware is 0x1e from 2012. Probably won't make a
>>> difference though but you never know.
>>>
>>> It crashed again.  Same result when I try to cat /dev/video0:
>> input/output error
>>
>> Here is what dmesg says:
>>
>> steve at steve-EP45-UD3P:~$ dmesg | grep pvr
>> [   12.937541] hdpvr 2-6:1.0: firmware version 0x14 dated May 12 2010
>> 10:29:31
>> [   12.937544] hdpvr 2-6:1.0: untested firmware, the driver might not
>> work.
>> [   13.152225] hdpvr 2-6:1.0: device now attached to video0
>> [   13.152252] usbcore: registered new interface driver hdpvr
>>
>> So it seems I do not have the latest device driver.  I doubt this is the
>> problem as it was working fine for years with the existing device driver
>> and I've not updated anything else.  But can't hurt to try.  How to install?
>>
>
> I looked into this and realized it was about firmware, which apparently
> can't be updated without hooking up to Windows. I don't think it's worth it
> because like I said it worked with the firmware it's got for quite some
> time.
>
> I'm out of ideas. Can you guys think of anything?  I'm thinking I will
> need to just rebuild my machine with a fresh install of the lastest Ubuntu
> and see if that helps.  I've been getting this "system software problem
> detected" popup a lot. Maybe that has something to do with it.
>
>>
The first generation HD-PVR was extremely sensitive to the USB port it was
plugged into. Basically did not work at all when plugged into USB3, and was
picky about the USB2 chipset as well. The only thing you have probably not
tried yet, is buying a USB2 add-on card to see if that helps. I don't think
it will, but if you are desperate to keep your HD-PVR working, then that is
the only thing I can think of.

Your experience pretty much mirrors mine from a few years ago. My first
generation HD-PVRs slowly got less and less reliable over time. That is
what gave me the motivation to get the second generation HD-PVR working
with Myth.

John
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