Can't set fb2's resolution same as fb0(if fb0 is XGA or WXGA+ ) on IMX53 QSB

[stauffenbergxia]

Hi! All,

I want to set fb2 resolution same as fb0, here is my code(overrall):

------------------------

... ...

struct fb_var_screeninfo fbVar;
struct fb_var_screeninfo fb2_var;

int fb = open("/dev/fb0", O_RDWR, 0);
ioctl(fb, FBIOGET_VSCREENINFO, &fbVar);

int fb2 = open("/dev/fb2", O_RDWR, 0);
ioctl(fb2, FBIOGET_VSCREENINFO, &fb2_var);

memset(&fb2_var, 0x00, sizeof(fb_var_screeninfo));
memcpy(&fb2_var, &fbVar, sizeof(fb_var_screeninfo));

ioctl(fb2, FBIOPUT_VSCREENINFO, &fb2_var);
... ...

-----------------------

I konw fb0 resolution 1024x768,as following(command fbset):

mode "1024x768-60"
# D: 65.003 MHz, H: 48.365 kHz, V: 60.006 Hz
geometry 1024 768 1024 2304 16
timings 15384 160 24 29 3 136 6
rgba 5/11,6/5,5/0,0/0
endmode

But i get fb2 info as following:

fb2_var.xres = 1023

fb2_var.yres = 632   OR

fb2_var.xres = 856

fb2_var.yres = 610   etc.

I need your help

Thanks and best regards.

[daiane_angolini]

What's your kernel command line?

[fcs]

Not the approach you want, but this changes my /dev/fb2 resolution to 1024x768:

gst-launch-0.10 -e mfw_v4lsrc sensor-width=720 sensor-height=288 capture-width=720 capture-height=576 preview=true preview-width=1024 preview-height=768 fps-n=25 bg=true ! mfw_vpuencoder ! avimux name=mux ! filesink location=/mnt/usb1/PALfps25f.avi