Hi,

I have intel atom board and when I boot it from flash or USB Screen resolution comes with 1024x768 but I choosed LVDS on BIOS with 800x600 18bit.On the other hand ,I have a different board of inte atom when configure like above it gives me correct screen resolution.

When I added kernel parameter video=800x600@60 to syslinux --> outputs are like below:

$fbset
mode "800x600-0"
# D: 0.000 MHz, H: 0.000 kHz, V: 0.000 Hz
geometry 800 600 800 600 32
timings 0 0 0 0 0 0 0
accel true
rgba 8/16,8/8,8/0,0/0
endmode

$xrandr
LVDS1 connected 800x600+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1024x768 60.0 +
800x600 60.3 60.0* 56.2
640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

$cat /proc/fb
0 inteldrmfb
1 VESA VGA

Kernel Command line = video=800x600@60
Linux= Yocto Sato , also Ubuntu is tried

Something on backside it doesnt change because LCD is 800x600 but characters doesnt fit to screen , screen is always 1024x768 I think. How can I fix the screen resolution and frame buffer resolution and LCD to 800x600?

Thanks.

Have you tried setting the vga value on the kernel boot line to one of these?; vga=771, vga=788, or vga=789
eg; http://www.pendrivelinux.com/vga-boo...en-resolution/

Yeah I have already tried them but it didnt solve.