[MPlayer-users] fb_dev: flickering output

Alexander Stein alexander.stein at systec-electronic.com
Wed Mar 23 13:51:08 CET 2011


On Tuesday 22 March 2011, 21:11:27 Carl Eugen Hoyos wrote:
> Alexander Stein <alexander.stein <at> systec-electronic.com> writes:
> > I tried rc4 and noticed a slight flicking in the output. Especially if i
> > fill the framebuffer using cat /dev/urandom > /dev/fb0.
> > Using rc2 there is no such flickering. I tried to bisect the problem, but
> > I have problem building mplayer.
> 
> svn co -r {2010-09-27} svn://svn.ffmpeg.org/mplayer/trunk mplayer
> cd mplayer
> svn up --ignore-externals -r {2010-09-27} libavutil/ libavformat/
> libavcodec/ libavcore/ libpostproc/ libdvdread4/ libdvdnav/
> ./configure && make
> make distclean
> svn up --ignore-externals -r {2009-12-31}
> svn up --ignore-externals -r {2009-12-31} libavutil/ libavformat/
> libavcodec/ libpostproc/ libdvdread4/ libdvdnav/
> ./configure && make
> 
> Note that libavcore was introduced around 2010-07-21, do not add it to
> earlier update commands!
> 
> I don't know if it is possible to test versions after 2010-09-26.

Thanks a lot. This helped me tracking down the problem to be caused by double 
buffering. Disabling it I get nice output, like in rc2.
Nevertheless I don't know if there problem is my hardware (AT91SAM9263) or the 
driver atmel_lcdfb but that's an other area.

Alexander


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