Setting FB devices in the DM355 (fbset)

xalexandregr

Intellectual 450 points

Hi,

I am configuring the resolutions of the FrameBuffers in the DM355 but I have a problem:

In the loadmodules.sh script, I have the commands below:

fbset -fb /dev/fb/0 -xres 0 -yres 0
fbset -fb /dev/fb/3 -xres 0 -yres 0

But now, I need to reset the fb/0 and fb/3 resolutions for the normal value. I try:

fbset -fb /dev/fb/0 -xres 640 -yres 480
fbset -fb /dev/fb/3 -xres 640 -yres 480

but it's not work. Why need I do to work correcty?

over 16 years ago

0 Juan Gonzales over 16 years ago

TI__Mastermind 37340 points

what do your u-boot bootargs look like?

0 xalexandregr over 16 years ago in reply to Juan Gonzales

Intellectual 450 points

My bootargs is:

setenv bootargs console=ttyS0,115200n8 noinitrd ip=dhcp root=/dev/nfs rw nfsroot=192.168.1.195:/home/alexandre/workdir/filesys mem=116M video=davincifb:vid0=640x480x16,2025K@40,0:vid1=720x576x16,2500K:osd0=720x576x16,2500K davinci_enc_mngr.ch0_output=COMPOSITE davinci_enc_mngr.ch0_mode=ntsc

I using like that because I modify the interface application from texas to execute the gst.sh from GStreamer. After the video be executed, I need to return the resolution of the fb/3 and fb/0 to the original resolution to the application to back again.

Thanks.

0 xalexandregr over 16 years ago in reply to xalexandregr

Intellectual 450 points

I still need help. ;D

Thanks.

0 Juan Gonzales over 16 years ago in reply to xalexandregr

TI__Mastermind 37340 points

Your bootargs seem fine; however, your fbset commands seem incomplete. I see you are specifying the window size, but not the buffer size or bpp. Please refer to PSP docs for information on using fbset command; in particular docs SPRAAU0.pdf and SPRUEK9.pdf

Processors

Processors forum

Setting FB devices in the DM355 (fbset)