[GnomeMeeting-list] Palette issue with Mandrake 9.1

[Cristian Atria Cravetto <catria free fr>]

Hello,
I have upgraded to Mandrake 9.1 from Mandrake 9.0 and now Gnomemeeting is not 
able to open my Philips webcam:

Error while opening video device /dev/video0, channel 0.
The chosen Video Image will be transmitted during calls. If you didn't choose 
any image, then the default GnomeMeeting logo will be transmitted. Notice 
that you can always transmit a given image or the GnomeMeeting logo by 
choosing "Picture" as video device.
Your driver doesn't support the YUV420P format.
 Please check your kernel driver documentation in order to determine which 
Palette is supported. Set it as GnomeMeeting default with:
 gconftool --set "/apps/gnomemeeting/devices/color_format" YOURPALETTE --type 
string

Mandrake uses a patched kernel 2.4.21 (2.4.21-0.13mdk) and pwc module (8.10?, 
how to verify the version of a module?).

How can I find the supported pallette?

Fyi, other programs (like camstream) open the webcam without issues. Maybe 
this can be improved in GM?

Thanks for your help....

	Cristian