Nova-T 500 disconnects - solved?

It's probably unwise to celebrate just yet, but...

I was running a vanilla 2.6.24.2 kernel, and was getting 2 or 3 USB
disconnects each day. 5 days ago I upgraded to 2.6.24.4, and haven't had a USB disconnect since!

There is a fix in 2.6.24.4 for a USB bug that was introduced in Oct 2007 -
see:
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.24.y.git;a=commit;h=5475187c2752adcc6d789592b5f68c81c39e5a81

Hopefully this was the cause of the USB disconnects.

Some details of my setup, in case it's relevant:
Nova-T 500
v4l-dvb rev 127f67dea087 (Feb 26)
Vanilla 2.6.24.4 kernel
Slackware 11
IR remote control in use
Continual EIT scanning
Poor reception (MythTV reports 51-53%)

Frank

2008/3/31 timufea <[email protected]>:

Quoted 5 lines

It's probably unwise to celebrate just yet, but...

I was running a vanilla 2.6.24.2 kernel, and was getting 2 or 3 USB
disconnects each day. 5 days ago I upgraded to 2.6.24.4, and haven't had

a

Quoted 3 lines

USB disconnect since!

There is a fix in 2.6.24.4 for a USB bug that was introduced in Oct

2007 -

Quoted 2 lines

see:

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

Quoted 12 lines

Hopefully this was the cause of the USB disconnects.

Some details of my setup, in case it's relevant:
Nova-T 500
v4l-dvb rev 127f67dea087 (Feb 26)
Vanilla 2.6.24.4 kernel
Slackware 11
IR remote control in use
Continual EIT scanning
Poor reception (MythTV reports 51-53%)

Quoted 1 line

Frank

If true, this is excellent news (I have almost the exact same set up, except that I've given up on the remote and the active EIT scanning to reduce the disconnects). I've entered a bug report for this on mythbuntu/ubuntu because the latest version (8.04, in beta) doesn't seem to have this patch. The latest Ubuntu also uses the 2.6.24 kernel.

https://bugs.launchpad.net/ubuntu/+bug/209603

Can other Mythbuntu/Ubuntu users of the Nova-T 500 please comment on that bug to help raise its visibility and/or add information?

-Eamonn

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Guys,

I have tried the ehci patch manually on the Ubuntu 2.6.24-13 source, and indeed it fixed the disconnects.

The fix is now in the 2.6.24-14 binaries, and works just as well.

My Ubuntu Hardy has now resumed normal activities and Gutsy stability levels, so far.

I can only recommend that users of other distros should check for kernel updates, bug their developers to include the fix, or do it themselves.

Nico

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Hi,

I was following the discussion silently, because I wanted to see the information which lead me to the solution. Indeed I was wondering, that there was no change recently in the dib0700-module - so it must have been something else, but what.

Glad to see there is now a solution - I never could have found this one.

Sorry for not replying earlier, but I really had nothing to say.

Guys,

I have tried the ehci patch manually on the Ubuntu 2.6.24-13 source, and indeed it fixed the disconnects.

The fix is now in the 2.6.24-14 binaries, and works just as well.

My Ubuntu Hardy has now resumed normal activities and Gutsy stability levels, so far.

I can only recommend that users of other distros should check for kernel updates, bug their developers to include the fix, or do it themselves.