[mythtv-users] dib0700 and USB disconnects / mt2060 I2C read failed

[Nicholas Piper]

On Tue, 08 Apr 2008, Nicolas Will wrote:
> On Tue, 8 Apr 2008 00:36:15 +0100, Nicholas Piper <nick-mythtv at nickpiper.co.uk> wrote:

> > I'm going to upgrade from kernel 2.6.20 to 2.6.24, but while I do I
> > wanted to ask if anyone else has trouble after using a dib0700 based
> > DVB-T dongle for several hours?

> You should not hit any snag.

> If you do, there is a problem in your setup/system.

I hit a snag again :-)

This was the plugging:

Apr  8 09:43:13 piamox7 kernel: usb 4-6: new high speed USB device using ehci_hcd and address 5
Apr  8 09:43:13 piamox7 kernel: usb 4-6: configuration #1 chosen from 1 choice
Apr  8 09:43:13 piamox7 kernel: dvb-usb: found a 'Leadtek Winfast DTV Dongle (STK7700P based)' in cold state, will try to load a firmware
Apr  8 09:43:13 piamox7 kernel: dvb-usb: downloading firmware from file 'dvb-usb-dib0700-1.10.fw'
Apr  8 09:43:13 piamox7 kernel: dib0700: firmware started successfully.
Apr  8 09:43:14 piamox7 kernel: dvb-usb: found a 'Leadtek Winfast DTV Dongle (STK7700P based)' in warm state.
Apr  8 09:43:14 piamox7 kernel: dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer.
Apr  8 09:43:14 piamox7 kernel: DVB: registering new adapter (Leadtek Winfast DTV Dongle (STK7700P based))
Apr  8 09:43:14 piamox7 kernel: DVB: registering frontend 0 (DiBcom 7000MA/MB/PA/PB/MC)...
Apr  8 09:43:14 piamox7 kernel: MT2060: successfully identified (IF1 = 1220)
Apr  8 09:43:14 piamox7 kernel: input: IR-receiver inside an USB DVB receiver as /class/input/input5
Apr  8 09:43:14 piamox7 kernel: dvb-usb: schedule remote query interval to 150 msecs.
Apr  8 09:43:14 piamox7 kernel: dvb-usb: Leadtek Winfast DTV Dongle (STK7700P based) successfully initialized and connected.

It seemed to be going quite well so far today, doing several
recordings, but now:

Apr  8 14:21:28 piamox7 kernel: usb 4-6: USB disconnect, address 5
Apr  8 14:21:28 piamox7 kernel: dib0700: RC Query Failed
Apr  8 14:21:28 piamox7 kernel: dvb-usb: error while querying for an remote control event.
Apr  8 14:21:28 piamox7 kernel: dib0700: RC Query Failed
Apr  8 14:21:28 piamox7 kernel: dvb-usb: error while querying for an remote control event.
Apr  8 14:21:29 piamox7 kernel: dib0700: RC Query Failed
Apr  8 14:21:29 piamox7 kernel: dvb-usb: error while querying for an remote control event.

2008-04-08 14:20:31.093 Error: offset>181, pes length & current can not be queried
2008-04-08 14:21:08.607 MainServer::HandleAnnounce Monitor
2008-04-08 14:21:08.648 adding: piamox7 as a client (events: 0)
2008-04-08 14:21:10.058 Error: offset>181, pes length & current can not be queried
2008-04-08 14:21:16.729 Error: offset>181, pes length & current can not be queried
2008-04-08 14:22:34.132 MainServer::HandleAnnounce Monitor
2008-04-08 14:22:34.145 adding: piamox7 as a client (events: 0)

and: 

mythtv   10813  0.5  0.0      0     0 ?        Zsl  09:49   1:37 [mythbackend] <defunct>

when I tried to stop the backend.

> > I'm hitting http://bugzilla.kernel.org/show_bug.cgi?id=7986 , which
> > never came to any real conclusion that I can see yet.

> I believe that it got solved recently for 2.6.24, and later:

> http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.24.y.git;a=blobdiff;f=drivers/usb/host/ehci-q.c;h=d1df9e9c5897b895e2fe8e3f2cf77d6a2b281534;hp=b10f39c047e944848f3ac2aa4067e820d2f5df90;hb=5475187c2752adcc6d789592b5f68c81c39e5a81;hpb=1b52961e49f8b7293b52826c7e12a689d516fe18

> I have experienced the disconnects with 2.6.24 before. I have tried this
> patch manually, before it got included in myy Ubuntu 8.04 kernel. It does
> the trick.

I'm using Debian packaged 2.6.24-5 now, which includes that patch. I
also now have dvb-usb-dib0700-1.10.fw

> You should really take a look at this:

> http://linuxtv.org/wiki/index.php/Leadtek_Winfast_DTV_Dongle

> Get a new v4l-dvb tree compiled against your kernel and get the correct
> firmware. Life should be good for you.

I'll try building the latest v4l-dvb.

Regards and thanks,

 Nick