[mythtv-users] Kernel Crash when starting up in au0828-video.c line 895

[Mark Lord]

On 12-04-07 08:53 PM, Mark Lord wrote:
..
> Here (attached, hopefully, is the /etc/init/mythtv.conf Upstart script
> that I use for starting mythbackend -- free free to edit/rename it
> to match what Mythbuntu calls it.  I use this in Xubuntu-12.04 prerelease.
> 
> The /etc/init/mythtv.conf script invokes /usr/local/bin/reset_hauppauge_usb.sh
> to do the dirty work.  That script is also attached.
> 
> Finally, that latter script needs to perform USB resets,
> which involves a very simple C program called usbreset.c (attached),
> which you should compile and place the binary into /usr/local/bin/usbreset
> 
> My scripts may assume free use of "sudo",
> which I've configured in /etc/sudoers to never prompt for passwords.
> That file is _also_ attached, but the critical line is this one:
> 
>    mythtv  ALL=NOPASSWD: ALL
> 
> Cheers


I should add that, even with the above workarounds, there is STILL an issue
when mythbackend starts up:  If you have "multi-rec" enabled (more than one
virtual tuner per physical HVR-950Q), then the backend will have several
near-simultaneous "tune to initial channel" calls into the drivers.

This will cause tuner failure.

So, go into mythtv-setup and set the maximum simultaneous recordings per tuner
to be exactly "1" (the default is "2").  A nuisance, particularly if you have
only a single HVR-950Q, but at least it does make things a lot more reliable.

Cheers