[linux-dvb] problem: Hauppauge Nova TD500

[linux-dvb] problem: Hauppauge Nova TD500

[Tim Docker]

Hi,

I'm trying to diagnose a problem with a mythtv setup based upon a 
hauppauge nova td 500. I've had the setup for some months - it seemed to 
work reasonably reliably initially, but over the last few weeks I've had 
consistent problems with the tuner card entering a state where it is 
unable to receive a signal. I was seeing multiple errors via dmesg of 
the form:

[27317.617958] DiB0070 I2C write failed

Web trawling suggested that this could be resolved with an updated 
driver - I did this yesterday, with the latest version from mercurial, 
obtained and built as per the instructions here:

http://www.linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-DVB_Device_Drivers 


I installed this over the top of the 2.6.27-14-generic kernel from the 
mythbuntu distribution, and manually installed the 1.20 firmware.

In 24 uptime hours I haven't seen any I2C errors, but unfortunately, it 
has still entered some state where I can't received a signal. 
Mysteriously, there doesn't appear to be any relevant errors or messages 
in dmesg. From the log snippet below, you can see that no signal is 
being returned by tzap, but if I unload and reload the modules, 
everything comes back to life.

I'd really appreciate any tips or pointers on what might be going wrong 
here.

Thanks,

Tim

------- snippet showing dmesg dvb related output at boot -----------------

[   11.935560] dib0700: loaded with support for 9 different device-types
[   11.935760] dvb-usb: found a 'Hauppauge Nova-TD-500 (84xxx)' in cold 
state, will try to load a firmware
[   11.935763] firmware: requesting dvb-usb-dib0700-1.20.fw
[   11.986891] phy0: Selected rate control algorithm 'pid'
[   12.153734] dvb-usb: downloading firmware from file 
'dvb-usb-dib0700-1.20.fw'
[   12.204961] Broadcom 43xx driver loaded [ Features: PLR, Firmware-ID: 
FW13 ]
[   12.361320] dib0700: firmware started successfully.
[   12.864020] dvb-usb: found a 'Hauppauge Nova-TD-500 (84xxx)' in warm 
state.
[   12.864066] dvb-usb: will pass the complete MPEG2 transport stream to 
the software demuxer.
[   12.864233] DVB: registering new adapter (Hauppauge Nova-TD-500 (84xxx))
[   13.087819] DVB: registering adapter 0 frontend 0 (DiBcom 7000PC)...
[   13.263971] DiB0070: successfully identified
[   13.263975] dvb-usb: will pass the complete MPEG2 transport stream to 
the software demuxer.
[   13.264166] DVB: registering new adapter (Hauppauge Nova-TD-500 (84xxx))
[   13.402995] DVB: registering adapter 1 frontend 0 (DiBcom 7000PC)...
[   13.584024] DiB0070: successfully identified
[   13.584099] input: IR-receiver inside an USB DVB receiver as 
/devices/pci0000:00/0000:00:0a.0/0000:01:07.2/usb3/3-1/input/input5
[   13.596142] dvb-usb: schedule remote query interval to 50 msecs.
[   13.596148] dvb-usb: Hauppauge Nova-TD-500 (84xxx) successfully 
initialized and connected.
[   13.596297] usbcore: registered new interface driver dvb_usb_dib0700


------ history showing no-signal and recovery by reloading -----------

timd@dkz-mythtv:~$ sudo tzap -r -c ~/.tzap/channels.conf "ABC1"
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
tuning to 226500000 Hz
video pid 0x0200, audio pid 0x028a
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | 
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | 
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | 
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | 
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | 
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | 
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | 
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | 
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | 
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | 
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | 
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | 
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | 
status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | ^C
timd@dkz-mythtv:~$ sudo rmmod dib7000p dib7000m dib3000mc dib0070 
dvb_usb_dib0700
ERROR: Module dib7000p is in use by dvb_usb_dib0700
ERROR: Module dib7000m is in use by dvb_usb_dib0700
ERROR: Module dib3000mc is in use by dvb_usb_dib0700
ERROR: Module dib0070 is in use by dvb_usb_dib0700
timd@dkz-mythtv:~$ sudo rmmod dib7000p dib7000m dib3000mc dib0070 
dvb_usb_dib0700
ERROR: Module dvb_usb_dib0700 does not exist in /proc/modules
imd@dkz-mythtv:~$ sudo modprobe dvb-usb-dib0700
timd@dkz-mythtv:~$ sudo tzap -r -c ~/.tzap/channels.conf "ABC1"
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
tuning to 226500000 Hz
video pid 0x0200, audio pid 0x028a
status 1f | signal a89f | snr 0000 | ber 001fffff | unc 00000215 | 
FE_HAS_LOCK
status 1f | signal a8c3 | snr 0000 | ber 00000710 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a8ac | snr 0000 | ber 00000480 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a8e8 | snr 0000 | ber 000004b0 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a8d8 | snr 0000 | ber 00000420 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a8bc | snr 0000 | ber 000003c0 | unc 00000000 | 
FE_HAS_LOCK
status 1f | signal a8d0 | snr 0000 | ber 000005b0 | unc 00000000 | 
FE_HAS_LOCK


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Re: [linux-dvb] problem: Hauppauge Nova TD500

[Nicolas Will]

On Tue, 2009-08-11 at 13:53 +0100, Tim Docker wrote:
> Hi,
> 
> I'm trying to diagnose a problem with a mythtv setup based upon a 
> hauppauge nova td 500. I've had the setup for some months - it seemed
> to 
> work reasonably reliably initially, but over the last few weeks I've
> had 
> consistent problems with the tuner card entering a state where it is 
> unable to receive a signal. I was seeing multiple errors via dmesg of 
> the form:
> 
> [27317.617958] DiB0070 I2C write failed
> 
> Web trawling suggested that this could be resolved with an updated 
> driver - I did this yesterday, with the latest version from
> mercurial, 
> obtained and built as per the instructions here:
> 
> http://www.linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-DVB_Device_Drivers 
> 
> 
> I installed this over the top of the 2.6.27-14-generic kernel from
> the 
> mythbuntu distribution, and manually installed the 1.20 firmware.
> 
> In 24 uptime hours I haven't seen any I2C errors, but unfortunately,
> it 
> has still entered some state where I can't received a signal. 
> Mysteriously, there doesn't appear to be any relevant errors or
> messages 
> in dmesg. From the log snippet below, you can see that no signal is 
> being returned by tzap, but if I unload and reload the modules, 
> everything comes back to life.
> 
> I'd really appreciate any tips or pointers on what might be going
> wrong 
> here.

This problem is most probably caused by the tuner being in USB suspend
when MythTV wants to use it too quickly.

Either disable usb suspend in your kernel, or tell mythtv to take wait
some more before tuning.

I told MythTV to wait some more, and all is fine.

http://www.youplala.net/linux/home-theater-pc#toc-not-losing-one-of-the-nova-t-500s-tuners

Nico

Re: [linux-dvb] problem: Hauppauge Nova TD500

[Tim Docker]

On 11/08/2009, at 11:11 PM, Nicolas Will wrote:

> On Tue, 2009-08-11 at 13:53 +0100, Tim Docker wrote:
>> Hi,
>>
>> I'm trying to diagnose a problem with a mythtv setup based upon a
>> hauppauge nova td 500. I've had the setup for some months - it seemed
>> to
>> work reasonably reliably initially, but over the last few weeks I've
>> had
>> consistent problems with the tuner card entering a state where it is
>> unable to receive a signal.

> This problem is most probably caused by the tuner being in USB suspend
> when MythTV wants to use it too quickly.
>
> Either disable usb suspend in your kernel, or tell mythtv to take wait
> some more before tuning.
>
> I told MythTV to wait some more, and all is fine.
>
> http://www.youplala.net/linux/home-theater-pc#toc-not-losing-one-of-the-nova-t-500s-tuners

Thanks - I've make the changes, and it's survived the first 24 hours,  
which is an improvement. Time will tell if the problem has really gone.

Tim

Re: [linux-dvb] problem: Hauppauge Nova TD500

[Nicolas Will]

On Wed, 2009-08-12 at 23:04 +1000, Tim Docker wrote:
> On 11/08/2009, at 11:11 PM, Nicolas Will wrote:
> 
> > On Tue, 2009-08-11 at 13:53 +0100, Tim Docker wrote:
> >> Hi,
> >>
> >> I'm trying to diagnose a problem with a mythtv setup based upon a
> >> hauppauge nova td 500. I've had the setup for some months - it
> seemed
> >> to
> >> work reasonably reliably initially, but over the last few weeks
> I've
> >> had
> >> consistent problems with the tuner card entering a state where it
> is
> >> unable to receive a signal.
> 
> > This problem is most probably caused by the tuner being in USB
> suspend
> > when MythTV wants to use it too quickly.
> >
> > Either disable usb suspend in your kernel, or tell mythtv to take
> wait
> > some more before tuning.
> >
> > I told MythTV to wait some more, and all is fine.
> >
> >
> http://www.youplala.net/linux/home-theater-pc#toc-not-losing-one-of-the-nova-t-500s-tuners
> 
> Thanks - I've make the changes, and it's survived the first 24
> hours,  
> which is an improvement. Time will tell if the problem has really
> gone.

It should be.

My system has been up for more than 14 days, since the last kernel
update that required a reboot.

Before that it was up for more than a month.

Nico