[mythtv-users] Problems with HVR 1300 and DVB-T on recent kernels

[f.renn at urz.uni-heidelberg.de]

Hi Marc,
thanx for opening a ticket. I added some of my observations to the ticket:

http://svn.mythtv.org/trac/ticket/7292

hogliux


Quoting Marc Randolph <mrand at pobox.com>:

> On Sun, Oct 11, 2009 at 11:22 AM, Chris Jones
> <chris at mollingtonconsultants.com> wrote:
>>> -----Original Message-----
>>> From: mythtv-users-bounces at mythtv.org [mailto:mythtv-users-
>>> bounces at mythtv.org] On Behalf Of Fabian Renn
>>> Sent: 11 October 2009 2:09 PM
>>> To: mythtv-users at mythtv.org
>>> Subject: [mythtv-users] Problems with HVR 1300 and DVB-T on recent
>>> kernels
>>>
>>> Hi,
>>> i'm also having the same problem on a Hauppage 1300. Strange thing is
>>> that tzap, mplayer etc. all work fine. So it's really mythtv that is
>>> causing the problem. I have tried all sort of high time waits.
>>>
>>> Thanks!
>>>
>>> hogliux
>>>
>>> > Hi,
>>> >
>>> > I recently upgraded my amd64 Debian MythTV box  with a Haupauge
>>> > HVR1300
>>> > from Debian kernel 2.6.26 to 2.6.30 and could not get a channel lock
>>> > for
>>> > my DVB-T tv channels any more (btw, I am using current Debian
>>> > packages
>>> > from debian-multimedia).
>>> >
>>> > I then did some quick testing with vanilla linux kernels starting
>>> > with
>>> > 2.6.27
>>> > with the following results:
>>> > 2.6.27: seems to work fine
>>> > 2.6.28: channel lock could not be acquired reliably; sometimes
>>> > switching
>>> > channels worked fine, most of the time it failed
>>> > 2.6.29: could not get any channel locks
>>> > 2.6.30: the same, no channel lock
>>> > 2.6.31-rc7: the same, no channel locks
>>> >
>>> > At first I suspected the driver to have a problem but other
>>> > applications
>>> > such as 'scan' still can see all channels with 2.6.31-rc7 (I also
>>> > tried
>>> > kaffeine which found most of the channels but not all).
>>> >
>>> > I tried various settings for the channel scan time out with no luck.
>>> > I also tried importing the channels.conf I generated with scan (and
>>> > whose
>>> > output is the same for both 2.6.26 and 2.6.31-rc7) but in that case
>>> > mythtv-setup crashed on me most of the time.
>>> >
>>> > Any idea what could go wrong after the update? I am only using the
>>> > DVB-T
>>> > input of the card, no analogue capturing. Removing the cx88_blackbird
>>> > module did not change anything.
>>> >
>>
>> I am also having the same problems, but with Fedora 11 x86-64. On Fedora 10,
>> this configuration worked fine, but when I upgraded to F11 in August, that
>> is when my problems started. Clearly, something is wrong with MythTV, as
>> this does not appear to be distribution specific. Like you, I can watch TV
>> on Kaffeine, but Mythtv just refuses to do anything. ScanDVB works, as does
>> tzap.
>
> Broken HVR-1300 channel scan bug is here:
> http://svn.mythtv.org/trac/ticket/7292
>
> If anyone has something constructive to add (additional insight on
> what has changed, or useful log messages not contained in the bug
> already) feel free to do so.  As always, PLEASE do not just add "me
> too" type comments.  Not knowing enough about what is broken and what
> code is shared, I don't know if whatever fix is found for this will
> help LiveTV for the HVR-1300 either.  If someone believes LiveTV is a
> separate issue, a new bug should probably be opened.
>
>    Marc
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