[mythtv-users] kde startup problems / backend ownership / nvidia -- need suggestions.

[Jarod Wilson]

On Tuesday 23 November 2004 10:11, John Freer wrote:
> Hi all:
>
> Just looking for a point in the right direction.  I just switched up
> to the nvidia 6629 drivers.  Installed from rpms, the
> nvidia-graphics6629, the -devel and -lib also.
>
> I'm on FC2, 2.6.8-1.521, athlon xp2200
>
> x.org = 2.6.7.  all from rpms.

Er, no. The xorg packages for FC2 are 6.7.x.

> Initially when I installed the 6629 drivers, X would not start.  I
> found after much messing around that I needed to mknod /dev/nvidia0
> and /dev/nvidiactl.  After I did, x would start.

There is a known problem with one cut of the alsa and nvidia rpms on ATrpms, 
which cropped up because of necessary changes for FC3 packages and udev 
compatibility. Axel is at work on a new build.

> Unfortunately, when KDE booted up, I have been getting some really
> weird results.  I've attached a screenshot.

Doesn't seem to want to open here...

> the KDE load-up splash 
> screen doesn't go away.  the nvidia splash background is there, not
> the standard blue kde background.  Application clicking and menus
> don't work correctly.

Ew.

> Also -- in working on this, I found that mythbackend won't fire up
> unless the mythtv user is logged in.

This has been covered before, please search the mailing list archive.

> I've traced the problem to 
> ownership of /dev/dsp* and /dev/video*.  When no one is logged in,
> mythbackend can't access the devices.  As a hack, in my mythbackend
> startup script I put in "/bin/chmod 777 /dev/dsp*" etc, before it
> lights up the backend.  This is a kludge.
>
> How do I fix it right?

In a nutshell, by default, Red Hat chowns all devices at login time, so you 
have to make some changes in /etc/security/console.perms to stop this 
behavior, or just run the backend as root, which is what most folks end up 
doing.

-- 
Jarod C. Wilson, RHCE
jcw at wilsonet.com

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