[MPlayer-users] WAIT FOR VSYNC ioctl of intelfb in kernel 2.6.19

[kofboy]

======= 2006-11-13 22:48:24 =======

>On Wed, Nov 08, 2006 at 12:26:03AM +0800, kofboy wrote:
>> hi,all: 
>> 
>> The newest driver of intelfb add VSYNC interrupt support in kernel 2.6.19.
>> i think this ioctl is useful to the people who useing fbdev as video output. 
>> 
>> Can we use mplayer -vo fbdev2 -vsync to improve tearing issues? 
>
>I don't think it will work in the current design. You'd need to make
>vo_fbdev2 page-flipped, which would in turn preclude using it in some
>typical hackish situations that users like, iirc. There should
>probably be a second page-flipped fbdev vo. Perhaps fbdev2 should be
>this one and the original fbdev should just be left as-is..?
>
>Also, wait-for-vsync hurts performance a lot. It would be better if
>the 'page flip at vsync' ioctl works.
>
>Rich
>

Rich Felker,

Thanks a lot.
What do u mean "make vo_fbdev2 page-flipped"? Would you please make some detail for me?
"-double -vsync" seems not working  when i use -vesa:dga -vesa:nodga -fbdev2  as video out.

 
				 
　　　　　　　　kofboy
　　　　　　　　kofboy at 163.com
　　　　　　　　　　2006-11-14