Re: [linux-dvb] Nova - t disconnects

Re: [linux-dvb] Nova - t disconnects

[David Harvey]

I've also been experiencing disconnects with my laptop (testing hardy 
before deploying to my main mythbox)  I put the following in as a ubuntu 
bug report as well bu I have a feeling it's a kernel issue...  Happy to 
help with the ongoing fight for stability!

I get the same behaviour on my HP nx6125 laptop with both a nova-t and 
nova-t diversity stick. Either attempting to scan for, or watch dvb 
channels results in the following:

 MT2060: successfully identified (IF1 = 1220)
[ 589.459712] input: IR-receiver inside an USB DVB receiver as 
/devices/pci0000:00/0000:00:13.2/usb3/3-8/input/input16
[ 589.470534] dvb-usb: schedule remote query interval to 150 msecs.
[ 589.470540] dvb-usb: Hauppauge Nova-T Stick successfully initialized 
and connected.
[ 606.300175] hub 3-0:1.0: port 8 disabled by hub (EMI?), re-enabling...
[ 606.300181] usb 3-8: USB disconnect, address 11
[ 606.312990] mt2060 I2C write failed
[ 608.563167] mt2060 I2C write failed
[ 608.563243] mt2060 I2C write failed (len=2)
[ 608.563246] mt2060 I2C write failed (len=6)

This was with the latest mercurial build from v4l-dvb but this doesn't 
seem to fix things and displays the same as the stock kernel modules. 
There were some disconnects with previous ubuntu kernel versions (gutsy 
and previous) but not nearly as frequent as is now happening. Looks like 
it's probabably an upstream issue as I've read of several other 
sufferers even with vanilla kernels. Could be my usb chipset or 
something more generic, lspci is below. Please let me know if I can 
provide any further debug.

david@davslaptop:~$ lspci
00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge (rev 01)
00:01.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge
00:04.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge
00:05.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge
00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller
00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller
00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host Controller
00:14.0 SMBus: ATI Technologies Inc IXP SB400 SMBus Controller (rev 11)
00:14.1 IDE interface: ATI Technologies Inc IXP SB400 IDE Controller
00:14.3 ISA bridge: ATI Technologies Inc IXP SB400 PCI-ISA Bridge
00:14.4 PCI bridge: ATI Technologies Inc IXP SB400 PCI-PCI Bridge
00:14.5 Multimedia audio controller: ATI Technologies Inc IXP SB400 
AC'97 Audio Controller (rev 02)
00:14.6 Modem: ATI Technologies Inc SB400 AC'97 Modem Controller (rev 02)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] 
HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] 
Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] 
DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] 
Miscellaneous Control
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon XPRESS 
200M 5955 (PCIE)
02:01.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5788 
Gigabit Ethernet (rev 03)
02:02.0 Network controller: Broadcom Corporation BCM4318 [AirForce One 
54g] 802.11g Wireless LAN Controller (rev 02)
02:04.0 CardBus bridge: Texas Instruments PCIxx21/x515 Cardbus Controller
02:04.2 FireWire (IEEE 1394): Texas Instruments OHCI Compliant IEEE 1394 
Host Controller
02:04.3 Mass storage controller: Texas Instruments PCIxx21 Integrated 
FlashMedia Controller
02:04.4 SD Host ...

dh

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Re: [linux-dvb] Nova - t disconnects

[Ivor Hewitt]

On Wed, Mar 26, 2008 at 09:30:38AM +0000, David Harvey wrote:
> I've also been experiencing disconnects with my laptop (testing hardy 
> before deploying to my main mythbox)  I put the following in as a ubuntu 
> bug report as well bu I have a feeling it's a kernel issue...  Happy to 
> help with the ongoing fight for stability!
> 
What kernel is that with? Do you have the chance to try also with a stock 2.6.22.19 kernel and the latest v4l-dvb drivers?


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Re: [linux-dvb] Nova - t disconnects

[David Harvey]

Ivor Hewitt wrote:
> On Wed, Mar 26, 2008 at 09:30:38AM +0000, David Harvey wrote:
>   
>> I've also been experiencing disconnects with my laptop (testing hardy 
>> before deploying to my main mythbox)  I put the following in as a ubuntu 
>> bug report as well bu I have a feeling it's a kernel issue...  Happy to 
>> help with the ongoing fight for stability!
>>
>>     
> What kernel is that with? Do you have the chance to try also with a stock 2.6.22.19 kernel and the latest v4l-dvb drivers?
>
>   
Kernel version: Linux davslaptop-hardy 2.6.24-12-generic (ubuntu hardy 
current) running amd64.  I have replaced my old installation so can't 
boot a 2.6.22 kernel anymore on this hardware, but will try to get round 
to running the hardy stuff on my actual mythbox (an epia) to see if I 
get similar disconnects (this machine is still running gutsy 
currently).  I should note that I was able to tune and watch tv ok with 
my gutsy install on the laptop mentioned before with at least the nova-t 
(and I think the td also).  Thanks for swift feedback.

dh

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Re: [linux-dvb] Nova - t disconnects

[Philip Pemberton]

David Harvey wrote:
>  MT2060: successfully identified (IF1 = 1220)
> [ 589.459712] input: IR-receiver inside an USB DVB receiver as 
> /devices/pci0000:00/0000:00:13.2/usb3/3-8/input/input16
> [ 589.470534] dvb-usb: schedule remote query interval to 150 msecs.
> [ 589.470540] dvb-usb: Hauppauge Nova-T Stick successfully initialized 
> and connected.
> [ 606.300175] hub 3-0:1.0: port 8 disabled by hub (EMI?), re-enabling...
> [ 606.300181] usb 3-8: USB disconnect, address 11
> [ 606.312990] mt2060 I2C write failed
> [ 608.563167] mt2060 I2C write failed
> [ 608.563243] mt2060 I2C write failed (len=2)
> [ 608.563246] mt2060 I2C write failed (len=6)

...

Here's your problem:

> 00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge (rev 01)
...
> 00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller
> 00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller
> 00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host Controller

USB2 on ATI chipsets is hopelessly, horrendously broken. A Cardbus USB2 card 
(or in the case of a desktop, a PCI USB2 card) should fix this -- the NEC 
chipset based boards are (from what I've heard) the best of the bunch, but VIA 
based boards aren't (too) bad.

-- 
Phil.                         |  (\_/)  This is Bunny. Copy and paste Bunny
lists@philpem.me.uk           | (='.'=) into your signature to help him gain
http://www.philpem.me.uk/     | (")_(") world domination.

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Re: [linux-dvb] Nova - t disconnects

[Markus Rechberger]

On 3/26/08, Philip Pemberton <lists@philpem.me.uk> wrote:
> David Harvey wrote:
> > MT2060: successfully identified (IF1 = 1220)
> > [ 589.459712] input: IR-receiver inside an USB DVB receiver as
> > /devices/pci0000:00/0000:00:13.2/usb3/3-8/input/input16
> > [ 589.470534] dvb-usb: schedule remote query interval to 150 msecs.
> > [ 589.470540] dvb-usb: Hauppauge Nova-T Stick successfully initialized
> > and connected.
> > [ 606.300175] hub 3-0:1.0: port 8 disabled by hub (EMI?), re-enabling...
> > [ 606.300181] usb 3-8: USB disconnect, address 11
> > [ 606.312990] mt2060 I2C write failed
> > [ 608.563167] mt2060 I2C write failed
> > [ 608.563243] mt2060 I2C write failed (len=2)
> > [ 608.563246] mt2060 I2C write failed (len=6)
>
> ...
>
> Here's your problem:
>
> > 00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge (rev 01)
> ...
> > 00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller
> > 00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller
> > 00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host
> Controller
>
> USB2 on ATI chipsets is hopelessly, horrendously broken. A Cardbus USB2 card
> (or in the case of a desktop, a PCI USB2 card) should fix this -- the NEC
> chipset based boards are (from what I've heard) the best of the bunch, but
> VIA
> based boards aren't (too) bad.
>

it would be interesting to know what's wrong, especially since other
usb 2.0 based devices work properly with those chipset (ATI, VIA,
etc).
Any idea if it is a current or protocol based problem?
Aren't there similar devices from dibcom available which do not have
that problem?
If that's the case what's so different with the WinTV series?

Hope someone can answer at least a few questions :)

thanks,
Markus

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Re: [linux-dvb] Nova - t disconnects

[David Harvey]

Philip Pemberton wrote:
> David Harvey wrote:
>>  MT2060: successfully identified (IF1 = 1220)
>> [ 589.459712] input: IR-receiver inside an USB DVB receiver as 
>> /devices/pci0000:00/0000:00:13.2/usb3/3-8/input/input16
>> [ 589.470534] dvb-usb: schedule remote query interval to 150 msecs.
>> [ 589.470540] dvb-usb: Hauppauge Nova-T Stick successfully 
>> initialized and connected.
>> [ 606.300175] hub 3-0:1.0: port 8 disabled by hub (EMI?), re-enabling...
>> [ 606.300181] usb 3-8: USB disconnect, address 11
>> [ 606.312990] mt2060 I2C write failed
>> [ 608.563167] mt2060 I2C write failed
>> [ 608.563243] mt2060 I2C write failed (len=2)
>> [ 608.563246] mt2060 I2C write failed (len=6)
>
> ...
>
> Here's your problem:
>
>> 00:00.0 Host bridge: ATI Technologies Inc RS480 Host Bridge (rev 01)
> ...
>> 00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host 
>> Controller
>> 00:13.1 USB Controller: ATI Technologies Inc IXP SB400 USB Host 
>> Controller
>> 00:13.2 USB Controller: ATI Technologies Inc IXP SB400 USB2 Host 
>> Controller
>
> USB2 on ATI chipsets is hopelessly, horrendously broken. A Cardbus 
> USB2 card (or in the case of a desktop, a PCI USB2 card) should fix 
> this -- the NEC chipset based boards are (from what I've heard) the 
> best of the bunch, but VIA based boards aren't (too) bad.
>

I see!  I'll try and get hardy (and therefore the 2.6.24 kernel testing 
on my hopelessly underpowered mythbackend (Epia Mini itx 1Ghz) to offer 
some feedback from another chipset combo

Cheers,

dh

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[linux-dvb] Nova - T disconnects

[David Harvey]

Just a quick update.  I installed hardy (2.6.24) onto my mythbox (epia 
mini itx) for testing and can confirm the same disconnect behaviour with 
the bundled kernel presently, have not yet tried the latest hg-src with 
this config.  The " hub 4-1:1.0: port 2 disabled by hub (EMI?), 
re-enabling..." by which I mean the facility to re-enable helps no end 
in requiring no reboot to reset the dvb device.
I have a usb nova-t and nova-td (the latter of which I haven't tried 
again yet).

Will report back with results of up to date mercurial if there is any 
likelihood of seeing a different result?

Cheers,

dh

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Re: [linux-dvb] Nova - T disconnects

[David Harvey]

David Harvey wrote:
> Just a quick update.  I installed hardy (2.6.24) onto my mythbox (epia 
> mini itx) for testing and can confirm the same disconnect behaviour 
> with the bundled kernel presently, have not yet tried the latest 
> hg-src with this config.  The " hub 4-1:1.0: port 2 disabled by hub 
> (EMI?), re-enabling..." by which I mean the facility to re-enable 
> helps no end in requiring no reboot to reset the dvb device.
> I have a usb nova-t and nova-td (the latter of which I haven't tried 
> again yet).
>
> Will report back with results of up to date mercurial if there is any 
> likelihood of seeing a different result?
>
> Cheers,
>
> dh
>
I also just received the following response to a bug report I submitted 
through ubuntu which looks promising and relevant:

I'm experiencing the same problem with a DVB-T card on hardy. The fix
for it apparently is one-line, in one file:

http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.24.y.git;a=commit;h=5475187c2752adcc6d789592b5f68c81c39e5a81

Without this patch, my tuner card (a Hauppauge Nova-T 500 dual tuner)
disconnects multiple times a day, making Hardy Heron all but useless as
a MythTV platform. Can we please revisit the decision to push this patch
off to the next version?

-- USB port disabled by hup (EMI? re enabling) 
https://bugs.launchpad.net/bugs/204857 You received this bug 
notification because you are a direct subscriber of the bug.



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Re: [linux-dvb] Nova - T disconnects

[Eamonn Sullivan]

On Mon, Mar 31, 2008 at 12:32 PM, David Harvey <dcharvey@dsl.pipex.com> wrote:
> David Harvey wrote:
>  > Just a quick update.  I installed hardy (2.6.24) onto my mythbox (epia
>  > mini itx) for testing and can confirm the same disconnect behaviour
>  > with the bundled kernel presently, have not yet tried the latest
>  > hg-src with this config.  The " hub 4-1:1.0: port 2 disabled by hub
>  > (EMI?), re-enabling..." by which I mean the facility to re-enable
>  > helps no end in requiring no reboot to reset the dvb device.
>  > I have a usb nova-t and nova-td (the latter of which I haven't tried
>  > again yet).
>  >
>  > Will report back with results of up to date mercurial if there is any
>  > likelihood of seeing a different result?
>  >
>  > Cheers,
>  >
>  > dh
>  >
>  I also just received the following response to a bug report I submitted
>  through ubuntu which looks promising and relevant:
>
>  I'm experiencing the same problem with a DVB-T card on hardy. The fix
>  for it apparently is one-line, in one file:
>
>  http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.24.y.git;a=commit;h=5475187c2752adcc6d789592b5f68c81c39e5a81
>
>  Without this patch, my tuner card (a Hauppauge Nova-T 500 dual tuner)
>  disconnects multiple times a day, making Hardy Heron all but useless as
>  a MythTV platform. Can we please revisit the decision to push this patch
>  off to the next version?
>

That was me, in response to the previous comment on that bug report:
the developer rejected it, saying the patch will be applied to the
next version of Ubuntu instead. I think it'll be more promising
when/if the maintainer of Ubuntu's kernel replies.

-Eamonn

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Re: [linux-dvb] Nova - T disconnects

[David Harvey]

Nice one Eamonn and fingers crossed!  If this is the cause of the 
resurgence in this behaviour, would it indicate the root cause as to why 
the nova cards still cause disconnects at all?  On 2.6.22 I was running 
with much greater stability but still had disconnects usually after 
upwards of a week (as opposed to in a day like with 2.6.24).

dh

David Harvey wrote:
> David Harvey wrote:
>> Just a quick update.  I installed hardy (2.6.24) onto my mythbox 
>> (epia mini itx) for testing and can confirm the same disconnect 
>> behaviour with the bundled kernel presently, have not yet tried the 
>> latest hg-src with this config.  The " hub 4-1:1.0: port 2 disabled 
>> by hub (EMI?), re-enabling..." by which I mean the facility to 
>> re-enable helps no end in requiring no reboot to reset the dvb device.
>> I have a usb nova-t and nova-td (the latter of which I haven't tried 
>> again yet).
>>
>> Will report back with results of up to date mercurial if there is any 
>> likelihood of seeing a different result?
>>
>> Cheers,
>>
>> dh
>>
> I also just received the following response to a bug report I 
> submitted through ubuntu which looks promising and relevant:
>
> I'm experiencing the same problem with a DVB-T card on hardy. The fix
> for it apparently is one-line, in one file:
>
> http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.24.y.git;a=commit;h=5475187c2752adcc6d789592b5f68c81c39e5a81 
>
>
> Without this patch, my tuner card (a Hauppauge Nova-T 500 dual tuner)
> disconnects multiple times a day, making Hardy Heron all but useless as
> a MythTV platform. Can we please revisit the decision to push this patch
> off to the next version?
>
> -- USB port disabled by hup (EMI? re enabling) 
> https://bugs.launchpad.net/bugs/204857 You received this bug 
> notification because you are a direct subscriber of the bug.
>
>
>



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