[mythtv-users] Re: MythTV on FC3 using atrpms: problems and workarounds

Joachim Gehweiler post at joachim-gehweiler.de
Sun Nov 28 18:49:09 UTC 2004

Axel Thimm wrote:
>>ivtv is not loaded => mythbackend cannot find Tuner0
> Hm, should be loaded by mythtv's initialisation, or not? Probably a
> udev issue.

I noticed that the bttv modules (more precisely: bttv, video_buf, 
v4l2_common, btcx_risc) get loaded automatically altough there is no 
bttv based in the system! Maybe mythtv loads the wrong drivers?

>>besides lirc wants to use /dev/lirc which does not exist (however,
>>/dev/lirc0 exists);
> Missing udev bits in the lirc rpms, any submission is welcome :)

I don't understand much of udev, but maybe this can help you: it seems 
that the symlink /dev/video -> /dev/video0 is created by the rule

KERNEL="video0",  SYMLINK="video"

in /etc/udev/rules.d/50-udev.rules. If I had to guess, I would make the 
lirc rpms add a line

KERNEL="lirc0",  SYMLINK="lirc"

to /etc/udev/rules.d/50-udev.rules on install and remove it on 
uninstall. But I'm not sure if this is the way it is intended by the 
udev developers; this rules.d directory makes me suppose that we should 
add an extra file XX-lirc.rules where XX is an appropriate number.

>>------------------ Problem 3 ------------------
>>nvidia module is not loaded although my modprobe.conf contains this line:
>>alias char-major-195 nvidia
>>------------------ Workaround -----------------
>>disable RedHatGraphicalBoot by removing the "rhgb" parameter in 
>>/etc/grub.conf; add "/sbin/modprobe nvidia" to /etc/rc.d/rc.local
>>------------------ End ------------------------
> Try upgrading to the latest nvidia-graphics rpms, this was a udev bug,
> too.

After upgrading, it works now. Thanks!


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