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DVB-T USB stick OK under FC5, not under CentOS 5

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J.Pilk at tesco

Dec 7, 2007, 10:45 AM

Post #1 of 8 (1058 views)
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DVB-T USB stick OK under FC5, not under CentOS 5

Hi again: after a personal relocation that is dwarfed by Axel's I have
just replaced an old FC3 installation with CentOS 5. The box still has
FC5 and XP in non-virtual form.

The 'clean' installation went smoothly but I had a few anxious (grubby?)
moments before I could boot again into FC5. I've updated C5 using
Smart; again that seems to have worked well, although the channel
locations in the config package didn't all work and I may not yet have a
good set. I haven't yet found packages for several of the multimedia
apps that work for me in FC5.

But my main problem is that the DVB-T stick that works quite well in FC5
seems unusable in Centos. I have Axel's v4l and its kmdl of 20070731
installed and maybe the problem will go away when the more recent
releases arrive (and I get back to the system). If the new build only
adds newer hardware then I shall keep FC5 in use - or perhaps go
shopping.

The stick is by Freecom, bought July 2006. It works well in FC5 on all
except one multiplex (BBC4 and BBC Radio), on which it times out during
scanning with no tables found. In Mythtv, after some manual tweaks to
the database, the EIT data for that multiplex appears in the Program
Guide, but I haven't been able to record from it.

In Centos, dvbscan lights the device's green light but then says it is
'unable to query frontend status'; the light goes back to yellow and
dvbscan gives up. Mythtvsetup (0.21) doesn't recognise the device
(unlike in FC5), although dmesg says it has been correctly
initialised.

This may not be the best forum for getting this problem fixed, but I'm
not sure that there's one that would be better. Perhaps the DVB-T list?
I hope someone will find the info helpful. The Freecom stick is still
advertised, and quite cheap, and advertisers seem keen to sell laptops
that might use it!

John Pilkington

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Axel.Thimm at ATrpms

Dec 7, 2007, 12:58 PM

Post #2 of 8 (1030 views)
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Re: DVB-T USB stick OK under FC5, not under CentOS 5 [In reply to]

Hi,

On Fri, Dec 07, 2007 at 06:45:30PM +0000, John Pilkington wrote:
> But my main problem is that the DVB-T stick that works quite well in FC5
> seems unusable in Centos. I have Axel's v4l and its kmdl of 20070731
> installed and maybe the problem will go away when the more recent
> releases arrive (and I get back to the system).

does that mean you have 20070731 on both FC5 and CentOS5 and it only
works on FC5?
--
Axel.Thimm at ATrpms.net

J.Pilk at tesco

Dec 7, 2007, 3:37 PM

Post #3 of 8 (1031 views)
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Re: DVB-T USB stick OK under FC5, not under CentOS 5 [In reply to]

On Fri, 2007-12-07 at 22:58 +0200, Axel Thimm wrote:
> Hi,
>
> On Fri, Dec 07, 2007 at 06:45:30PM +0000, John Pilkington wrote:
> > But my main problem is that the DVB-T stick that works quite well in FC5
> > seems unusable in Centos. I have Axel's v4l and its kmdl of 20070731
> > installed and maybe the problem will go away when the more recent
> > releases arrive (and I get back to the system).
>
> does that mean you have 20070731 on both FC5 and CentOS5 and it only
> works on FC5?

I'm afraid I'm away from home at present and can't say exactly what the
FC5 system has. I think it was fully updated when the FC5 packages were
dropped, and it hasn't been changed since, so the answer is probably
'yes'. But IIRC FC5 had the video stuff in the kernel and didn't need
the v4l packages. I've tried Centos without them but then dvbscan and
Mythtvsetup wouldn't run.

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Axel.Thimm at ATrpms

Dec 8, 2007, 12:10 AM

Post #4 of 8 (1028 views)
Permalink

Re: DVB-T USB stick OK under FC5, not under CentOS 5 [In reply to]

On Fri, Dec 07, 2007 at 11:37:37PM +0000, John Pilkington wrote:
> On Fri, 2007-12-07 at 22:58 +0200, Axel Thimm wrote:
> > Hi,
> >
> > On Fri, Dec 07, 2007 at 06:45:30PM +0000, John Pilkington wrote:
> > > But my main problem is that the DVB-T stick that works quite well in FC5
> > > seems unusable in Centos. I have Axel's v4l and its kmdl of 20070731
> > > installed and maybe the problem will go away when the more recent
> > > releases arrive (and I get back to the system).
> >
> > does that mean you have 20070731 on both FC5 and CentOS5 and it only
> > works on FC5?
>
> I'm afraid I'm away from home at present and can't say exactly what the
> FC5 system has. I think it was fully updated when the FC5 packages were
> dropped, and it hasn't been changed since, so the answer is probably
> 'yes'. But IIRC FC5 had the video stuff in the kernel and didn't need
> the v4l packages. I've tried Centos without them but then dvbscan and
> Mythtvsetup wouldn't run.

When you get back home check out with modinfo foo | head or modprobe
-nv foo to see which modules are being loaded (use the modprobe before
they have been loaded) and then use rpm -qf on the filename to see
what packages provide them.
--
Axel.Thimm at ATrpms.net

J.Pilk at tesco

Dec 8, 2007, 7:18 AM

Post #5 of 8 (1028 views)
Permalink

Re: DVB-T USB stick OK under FC5, not under CentOS 5 [In reply to]

On Sat, 2007-12-08 at 10:10 +0200, Axel Thimm wrote:
> On Fri, Dec 07, 2007 at 11:37:37PM +0000, John Pilkington wrote:
> > On Fri, 2007-12-07 at 22:58 +0200, Axel Thimm wrote:
> > > Hi,
> > >
> > > On Fri, Dec 07, 2007 at 06:45:30PM +0000, John Pilkington wrote:
> > > > But my main problem is that the DVB-T stick that works quite well in FC5
> > > > seems unusable in Centos. I have Axel's v4l and its kmdl of 20070731
> > > > installed and maybe the problem will go away when the more recent
> > > > releases arrive (and I get back to the system).
> > >
> > > does that mean you have 20070731 on both FC5 and CentOS5 and it only
> > > works on FC5?
> >
> > I'm afraid I'm away from home at present and can't say exactly what the
> > FC5 system has. I think it was fully updated when the FC5 packages were
> > dropped, and it hasn't been changed since, so the answer is probably
> > 'yes'. But IIRC FC5 had the video stuff in the kernel and didn't need
> > the v4l packages. I've tried Centos without them but then dvbscan and
> > Mythtvsetup wouldn't run.
>
> When you get back home check out with modinfo foo | head or modprobe
> -nv foo to see which modules are being loaded (use the modprobe before
> they have been loaded) and then use rpm -qf on the filename to see
> what packages provide them.

Axel, thanks for this suggestion. I shan't be able to try it
immediately, but if the problem is still there after any upcoming
updates I'll report back eventually.

I should have added that in Centos the hardware monitor identified the
usb receiver as (again IIRC) an Avermedia device - and after an
unplug/replug sequence reported two of them. In the FC5 HWM it appears
as Wideview/Typhoon, as it does in dmesg on both systems. Might a
suitable modprobe correct this?

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J.Pilk at tesco

Dec 9, 2007, 5:21 AM

Post #6 of 8 (1026 views)
Permalink

Re: DVB-T USB stick OK under FC5, not under CentOS 5 [In reply to]

On Sat, 2007-12-08 at 15:18 +0000, John Pilkington wrote:
> On Sat, 2007-12-08 at 10:10 +0200, Axel Thimm wrote:
> > On Fri, Dec 07, 2007 at 11:37:37PM +0000, John Pilkington wrote:
> > > On Fri, 2007-12-07 at 22:58 +0200, Axel Thimm wrote:
> > > > Hi,
> > > >
> > > > On Fri, Dec 07, 2007 at 06:45:30PM +0000, John Pilkington wrote:
> > > > > But my main problem is that the DVB-T stick that works quite well in FC5
> > > > > seems unusable in Centos. I have Axel's v4l and its kmdl of 20070731
> > > > > installed and maybe the problem will go away when the more recent
> > > > > releases arrive (and I get back to the system).
> > > >
> > > > does that mean you have 20070731 on both FC5 and CentOS5 and it only
> > > > works on FC5?
> > >
> > > I'm afraid I'm away from home at present and can't say exactly what the
> > > FC5 system has. I think it was fully updated when the FC5 packages were
> > > dropped, and it hasn't been changed since, so the answer is probably
> > > 'yes'. But IIRC FC5 had the video stuff in the kernel and didn't need
> > > the v4l packages. I've tried Centos without them but then dvbscan and
> > > Mythtvsetup wouldn't run.
> >
> > When you get back home check out with modinfo foo | head or modprobe
> > -nv foo to see which modules are being loaded (use the modprobe before
> > they have been loaded) and then use rpm -qf on the filename to see
> > what packages provide them.
>
> Axel, thanks for this suggestion. I shan't be able to try it
> immediately, but if the problem is still there after any upcoming
> updates I'll report back eventually.
>
> I should have added that in Centos the hardware monitor identified the
> usb receiver as (again IIRC) an Avermedia device - and after an
> unplug/replug sequence reported two of them. In the FC5 HWM it appears
> as Wideview/Typhoon, as it does in dmesg on both systems. Might a
> suitable modprobe correct this?
>
Hi again: According to this wiki

http://www.linuxtv.org/wiki/index.php/DVB-T_USB_Devices

my device is fully supported - it's the Freecom Rev3 version, the Rev4
is apparently not - and needs dvb-usb.ko, dvb-usb-dtt200u.ko and
probably mt352.ko. They all appear in

rpm -q -p video4linux-kmdl-2.6.18-8.1.15.el5-20070731-81.el5.i686.rpm -l

so please how do I override what seems to be a device misidentification,
and how ought it to be prevented?

Grateful thanks as always,

John Pilkington

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atrpms-users mailing list
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Axel.Thimm at ATrpms

Dec 9, 2007, 10:59 AM

Post #7 of 8 (1023 views)
Permalink

Re: DVB-T USB stick OK under FC5, not under CentOS 5 [In reply to]

On Sun, Dec 09, 2007 at 01:21:59PM +0000, John Pilkington wrote:
> On Sat, 2007-12-08 at 15:18 +0000, John Pilkington wrote:
> > On Sat, 2007-12-08 at 10:10 +0200, Axel Thimm wrote:
> > > On Fri, Dec 07, 2007 at 11:37:37PM +0000, John Pilkington wrote:
> > > > On Fri, 2007-12-07 at 22:58 +0200, Axel Thimm wrote:
> > > > > Hi,
> > > > >
> > > > > On Fri, Dec 07, 2007 at 06:45:30PM +0000, John Pilkington wrote:
> > > > > > But my main problem is that the DVB-T stick that works quite well in FC5
> > > > > > seems unusable in Centos. I have Axel's v4l and its kmdl of 20070731
> > > > > > installed and maybe the problem will go away when the more recent
> > > > > > releases arrive (and I get back to the system).
> > > > >
> > > > > does that mean you have 20070731 on both FC5 and CentOS5 and it only
> > > > > works on FC5?
> > > >
> > > > I'm afraid I'm away from home at present and can't say exactly what the
> > > > FC5 system has. I think it was fully updated when the FC5 packages were
> > > > dropped, and it hasn't been changed since, so the answer is probably
> > > > 'yes'. But IIRC FC5 had the video stuff in the kernel and didn't need
> > > > the v4l packages. I've tried Centos without them but then dvbscan and
> > > > Mythtvsetup wouldn't run.
> > >
> > > When you get back home check out with modinfo foo | head or modprobe
> > > -nv foo to see which modules are being loaded (use the modprobe before
> > > they have been loaded) and then use rpm -qf on the filename to see
> > > what packages provide them.
> >
> > Axel, thanks for this suggestion. I shan't be able to try it
> > immediately, but if the problem is still there after any upcoming
> > updates I'll report back eventually.
> >
> > I should have added that in Centos the hardware monitor identified the
> > usb receiver as (again IIRC) an Avermedia device - and after an
> > unplug/replug sequence reported two of them. In the FC5 HWM it appears
> > as Wideview/Typhoon, as it does in dmesg on both systems. Might a
> > suitable modprobe correct this?
> >
> Hi again: According to this wiki
>
> http://www.linuxtv.org/wiki/index.php/DVB-T_USB_Devices
>
> my device is fully supported - it's the Freecom Rev3 version, the Rev4
> is apparently not - and needs dvb-usb.ko, dvb-usb-dtt200u.ko and
> probably mt352.ko. They all appear in
>
> rpm -q -p video4linux-kmdl-2.6.18-8.1.15.el5-20070731-81.el5.i686.rpm -l

and what about FC5, which was working? Were these also taken from a
video4linux-kmdl? Also check with modprobe/modinfo on FC5 what is
being loaded.

> so please how do I override what seems to be a device misidentification,
> and how ought it to be prevented?
>
> Grateful thanks as always,
>
> John Pilkington
--
Axel.Thimm at ATrpms.net

J.Pilk at tesco

Dec 21, 2007, 3:36 AM

Post #8 of 8 (996 views)
Permalink

Re: DVB-T USB stick OK under FC5, not under CentOS 5 [In reply to]

Hi Axel: I'm sorry this isn't a proper 'reply' to the earlier thread
because I haven't yet fully migrated my emails to CentOS.

After a CentOS update on my return I still had the same symptoms and
modinfo showed that at least dvb-usb.ko and dvb-usb-dtt200u.ko were
derived from the new packages.

Because of this and the other problems with the Freecom stick I have now
installed an 'AVerTV DVB-T Super 007' PCI card, which does seem to be
working in the 'bleeding' Mythtv and also delivering the channels that
the Freecom did not.

If no other problems surface I intend to install another - they are
currently about 20 GBP each at Maplin. I may continue the Freecom
investigations later.

Thanks again, and seasonal greetings.

John Pilkington.

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