Mailing List Archive: MythTV: Users

Please help with Avermedia DVB-T 771

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Nov 5, 2004, 2:00 AM

Post #1 of 4 (734 views)
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Please help with Avermedia DVB-T 771

I have been trying to get the Avermedia DVB-T 771 going and not having much success. I have the version that has an mt352 frontend.

I tried using the DVB drivers that are in 2.6.10rc1 of the kernel, but i keep getting a segfault when I try and load the mt352 driver.

Can someone point me to versions of drivers that are known to work please? I am at a loss as to how to get this card going.

Thanks,

Tate.

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eyal at eyal

Nov 5, 2004, 3:29 AM

Post #2 of 4 (716 views)
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Re: Please help with Avermedia DVB-T 771 [In reply to]

Tate Needham wrote:
> I have been trying to get the Avermedia DVB-T 771 going and not having much success. I have the version that has an mt352 frontend.
>
> I tried using the DVB drivers that are in 2.6.10rc1 of the kernel, but i keep getting a segfault when I try and load the mt352 driver.
>
> Can someone point me to versions of drivers that are known to work please? I am at a loss as to how to get this card going.

I have this card. I run 2.6.10-rc1. It works for me. When you say segfault,
do you really mean a kernel oops? Or is it an application that is segfaulting?

--
Eyal Lebedinsky (eyal [at] eyal) <http://samba.org/eyal/>
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myth at jan-doelle

Nov 5, 2004, 5:09 AM

Post #3 of 4 (711 views)
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Re: Please help with Avermedia DVB-T 771 [In reply to]

Am Freitag, 5. November 2004 11:00 schrieb Tate Needham:
>
> I have been trying to get the Avermedia DVB-T 771 going and not having much success. I have the version that has an mt352 frontend.
>
> I tried using the DVB drivers that are in 2.6.10rc1 of the kernel, but i keep getting a segfault when I try and load the mt352 driver.
>
> Can someone point me to versions of drivers that are known to work please? I am at a loss as to how to get this card going.
>
> Thanks,
>
> Tate.
>
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>

Hi,

I run in to the same problem with 2.6.10rc1 in case I do not load dvd_bt8xx before mt352

Also take care that the firmware 'sc_main.mc' (find on windows driver cd) is placed in /usr/lib/hotplug/firmware/

And at least make sure that /dev/dvb/adapter0-3 is existing. If not you can use the MAKEDEV-DVB.sh script to create it.
http://linuxtv.org/cgi-bin/cvsweb.cgi/dvb-kernel/MAKEDEV-DVB.sh

modprobe bttv
modprobe bt878
modprobe dvb_core
modprobe dvb_bt8xx <--- Must Load before mt352!!!
modprobe mt352

The follow links will help to manage the myth stuff:
http://www.ethics-gradient.net/myth/mythdvb.html
http://www.hantslug.org.uk/cgi-bin/wiki.pl?LinuxHints/DVBAverMedia

---

But I run in to a other situation: After a while capturing , I will get in kern.log (syslog):
Nov 4 23:22:40 localhost kernel: bt878(0): irq FBUS risc_pc=1eb161b8
Nov 4 23:22:40 localhost kernel: bt878(0): irq FBUS risc_pc=1eb161e8
Nov 4 23:22:40 localhost kernel: bt878(0): irq FBUS risc_pc=1eb16208
Nov 4 23:22:40 localhost kernel: bt878(0): irq FBUS risc_pc=1eb16210
.....
Nov 4 23:22:40 localhost kernel: bt878(0): IRQ lockup, cleared int mask

After this will happend the card will not long work until I reboot.

Anyone an Idea

Cheers Jan

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chris at frooby

Nov 5, 2004, 12:57 PM

Post #4 of 4 (729 views)
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Re: Please help with Avermedia DVB-T 771 [In reply to]

I have two running on a 2.6.8 kernel, and havn't tried the 2.6.10rc1 yet
(if it ain't broke!). I know when I tried (for 2+ weeks!) I was getting
segfaults, and once it did stop segfaulting didn't tune!, with the
frontend (mt352) and applied patch after patch. Finally started clean
and installed the bttv-0.9.15 modules and the dvb-kernel modules in that
order.

Got further than previously but frontend still segfaulted. Turned out
there was a duplicate module installed (can't remember which one, but
may have been video-buf.ko). Just removed the one that WASN'T from the
dvb-kernel patch and all works 100% now. It was probably something I did
but might be worth checking.

The Avermedia 771 is a great card and once you remove the faceplate
offers rf pass-through too (needed once I got my second card). Think it
is one of the cheapest too! My reception is crap at the best of times,
but the reception from these cards is brilliant!. Havn't got the remote
working though but that's only because I use an XBox for a frontend.

Anyway big thanks to everyone who did all the patches for the card, and
an extra big thanks to everyone who works on MythTV. Even the wife LOVES
it, and trust me that says alot!

Hope this helps.
Chris

On Fri, 2004-11-05 at 20:00, Tate Needham wrote:
> I have been trying to get the Avermedia DVB-T 771 going and not having much success. I have the version that has an mt352 frontend.
>
> I tried using the DVB drivers that are in 2.6.10rc1 of the kernel, but i keep getting a segfault when I try and load the mt352 driver.
>
> Can someone point me to versions of drivers that are known to work please? I am at a loss as to how to get this card going.
>
> Thanks,
>
> Tate.
>
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>

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