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<div class="moz-cite-prefix">On 14/01/2020 10:31, Paul Gardiner
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:5e4b1469-88ff-fd18-36dc-169613ba7d6f@glidos.net">On
14/01/2020 10:19, Paul Gardiner wrote:
<br>
<blockquote type="cite">On 13/01/2020 14:35, John wrote:
<br>
<blockquote type="cite">On 13/01/2020 12:21, Stephen Worthington
wrote:
<br>
<blockquote type="cite">On Mon, 13 Jan 2020 11:44:15 +0000,
you wrote:
<br>
<br>
<blockquote type="cite">Hi,
<br>
I'm looking to replace an old Haupauge Single tuner PCI
card with a Dual
<br>
tuner PCIe card. Can anyone recommend either of the above
for use with
<br>
MythTV? My old Haupauge card, although not perfect has
been working for
<br>
many years, with regular kernel updates, using the built
in drivers, so
<br>
I don't want the backward step of having to explicitly
build drivers
<br>
each kernel update, hence the neither possibility.
<br>
</blockquote>
The TBS6902 is a fairly new card so it uses a newer chipset
and needs
<br>
the V4L based TBS drivers. So you would have to compile
them for each
<br>
kernel update.
<br>
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<br>
</blockquote>
<br>
I am currently using a DVBSky S950 V3 which has behaved
faultlessly for 5 years.
<br>
<br>
I have tried both the DVBSky S952v3 and the TBS6902 and have
had occasional bad recordings from both. (First tuning after
power on failing.)
<br>
<br>
The DVBSky cards are supported in the kernel.
<br>
</blockquote>
<br>
Thank you both. That's exactly the sort of information I was
hoping for. The S950C seems to still be available, which
apparently uses the same chips. Looks to be the same card, but
with a CI Common Interface Slot. Only a single tuner, but PCIe
and increased reliability was mainly what I was looking for.
<br>
</blockquote>
<br>
Actually no. Looks like I picked up an old web link or narrowly
missed getting the last one in stock.
<br>
<br>
John, with the S952v3, are you saying, it sometimes doesn't power
up in a working state, but if it does it remains stable?
<br>
<br>
Cheers,
<br>
Paul.
<br>
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</blockquote>
<p>I never got to the bottom of why the dual card was unreliable.
Possibly just a faulty card. Worked 95% of the time so could never
track the issue down.</p>
<p>The following helped</p>
<p> The dual TBS6952 takes 10 secs from boot to start - extending
device timeouts to 10 secs improved start up reliability.<br>
</p>
<p> Putting statements like this in mythbackend.service to make
systemd wait for the card to start did not help<br>
</p>
<p> Wants=dev-dvb-adapter0-frontend0.device<br>
After=dev-dvb-adapter0-frontend0.device<br>
</p>
<p> Normally if you have multiple cards and therefore need to
control the device numbers you would use Udev rules to control
these as described in <a moz-do-not-send="true"
href="https://www.mythtv.org/wiki/Device_Filenames_and_udev">https://www.mythtv.org/wiki/Device_Filenames_and_udev
. <br>
</a></p>
<p>I found the Alternatives to udev for naming for DVB cards (The
adapter_nr module option) much better -- see the last entry in the
wike page.</p>
<p>Using version 31 (current master) of Mythtv may also help as the
DVB setup and device handling is much improved.</p>
<p>Note I currently use a TBS6950 in conjunction with a WinTV-dualHD
both of which are rock solid.<br>
</p>
<p><br>
</p>
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