[mythtv-users] Various teething problems setting up mythtv, comments wanted please ;-).

Joshua King jkingkard-hotmail at yahoo.com.au
Fri Sep 23 10:56:23 UTC 2005


I can only comment a bit on the G400 card...

On 22/9/05 9:55 PM, "Simon Iremonger" <simon at businesswebsite.com> wrote:
 
> In any case, the properly wired up RGB adapter *does* work in e.g.
>    DirectFB, and the wiring/card design is such that the TV
>    'senses' the card is in S-video mode or RGB mode appropriately.
>    (i.e. Either [Sync-on-video-pin, R, G, B] or
>    [Sync-with-mono-video, Colour, n/a, n/a].  It also connects the
>    "video dongle sense" such that the card can see the adapter is
>    connected.  This is all wired to the SECOND head on the G400,
>    as I understand is how it should be.
> 
> I have the PAL TV-output BIOS on the Card, but I've never suceeded
>    in getting the TV output to work at boot-time ;-(.
> I appear to have a 32mb dual-head G400-tv-out (i.e. with the 'Maven'
>    chip).

Apart from me having the official S-Vid/Composite (using the composite
output, I don't get to use the TV that has RGB in) this is similar to me --
I have it connected to the second head, can see the BIOS but not Linux
booting. I believe this is due to the initialisation of the kernel which
switches off the TV support until you reactivate it -- I have it set up with
a custom modeline and it gets activated at the end of the boot sequence.

You could probably patch the kernel to do this/not do this earlier on, but
I've never bothered.

> I notice options on switching video mode in the mythtv setup menus.
>    Does this actually work for anybody, so the X server display
>    switches to different modes according to the video being played?
>    Or is this not sensible??

If you're running on a standard TV (not high-definition) I wouldn't bother
resolution-switching.

> 
> You may see, I've been having a whole host of problems to solve...
>    Mostly related to display with the TV-output!
> The best G400 support is in DirectFB, but mythtv in DirectFB
>    doesn't seem to be a particuarly viable solution!
> I don't know if you can enable RGB TV on G400 in X.org X11 ??...

You should be able to use the RGB TV modes in X11 -- at worst if you have
the console working you should be able to have a line
Option "UseFBDev" "on"
In your xf86.conf/xorg.conf file.
You can download a binary driver from Matrox which is still being maintained
(www.matrox.com, choose Matrox Graphics -> Home and Entertainment -> Support
-> Drivers -> Latest Drivers)

Joshua King


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