[mythtv-users] Xv output with fglrx 8.24.8

[Raphael Pooser]

Jonathan Rogers wrote:
> matt mead wrote:
>   
>> Does anyone have Xv output successfully working with fglrx 8.24.8?  I have a 
>> laptop with Radeon R250 (Mobility FireGL 9000).  After finally getting a 
>> modeline together that works properly with the LCD panel (the fact that it was 
>> not properly auto-detected as it is with the radeon driver leads me to believe 
>> ATI's driver is totally borked), I am getting the following mythfrontend output:
>>
>> 2006-05-11 10:43:27.110 VideoOutputXv Error: Could not find suitable XVideo 
>> surface.
>> 2006-05-11 10:43:27.110 VideoOutputXv: Falling back to X shared memory video 
>> output.
>>                                *** May be slow ***
>>     
>
> I did have a Mobility Radeon 9000 (which is rv250, not r250) AGP card in
> my mythbox. It was working with both X.org's radeon and fglrx, but it
> performed poorly for HD video. AFAIK, Xv was working, but I don't have
> that card in there right now.
>
> On another note, I also had to generate and tweak a Modeline because my
> stupid cheap LCD TV's EDID is borked, not because of card or driver. It
> reported suboptimal modes and bogus size to ATI and Nvidia cards with
> both Free and proprietary drivers on both Linux and Windows. This seems
> to be a common problem with various TVs from various manufacturers,
> based on the discussions I've seen on web forums.
>
> Jonathan Rogers
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
>   
May be dumb to ask, but do you have the option enabled?
With fglrx you have to put an option in the device section
Option "overlay" "1"
or similar, maybe replace "1" with "enabled" or something.  Without that 
option in there xv won't be on by default.  Also, if the kernel module 
isn't loaded properly you'll never have xv working.
This is my experience using fglrx from august of last year until now 
(having upgraded to nvidia).
You can check your X log and see if the module is actually working 
properly.  If it's not, it will say something along the lines of 
"warning, module not compatible with current kernel, you will not have 
hardware 3D acceleration", and you won't have xv either.
fglrx can be a PITA to install properly.  You may think it's installed 
correctly because the module build doesn't return an error, but the only 
way to know for sure is to check the log or check the OGL vendor string.
The various fglrx howto's document the confusion.
Raphael