[mythtv-users] HDPVR intermittent failure
Jim
lists at morton.hrcoxmail.com
Thu Jul 2 13:47:36 UTC 2020
On 7/2/2020 9:35 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.
>
>
Just to be clear - this is to confirm which device your hdpvr is
attached to
such as /dev/video0 so that you can formulate the proper cat command.
Jim
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