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change the GFX overlay from TV(720x480) to LCD(1024x768)

imtiyaj
Prodigy 240 points

I was trying to change the GFX overlay from TV(720x480) to LCD(1024x768) I have a VGA monitor as a display on this path. I am using 2.6.32 omap-linux kernel, nothing from PSP.

I used this procedure

ln -s /dev/graphics/fb0 /dev/fb0
fbset
echo 0 > /sys/devices/platform/omapdss/overlay0/enabled
echo "" > /sys/devices/platform/omapdss/overlay0/manager
echo 0 > /sys/devices/platform/omapdss/display1/enabled
echo "64800,1024/44/116/156,768/3/29/6" > /sys/devices/platform/omapdss/display0/timings
echo "1024,768" > /sys/class/graphics/fb0/virtual_size
fbset -fb /dev/fb0 -xres 1024 -yres 768 
echo "lcd" > /sys/devices/platform/omapdss/overlay0/manager
echo 1 > /sys/devices/platform/omapdss/display0/enabled
echo 1 > /sys/devices/platform/omapdss/overlay0/enabled

And I am not able to see the new resolution on LCD, it has retained the old one. Can anybody suggest what might be going wrong here?

But if I used following commands to change resolution to 1024x768 from 800x600, if by default the kernel command-line asked to boot in "dvi"

# echo 0 > /sys/devices/platform/omapdss/display0/enabled
# echo "64800,1024/44/116/156,768/3/29/6" > /sys/devices/platform/omapdss/display0/timings
# echo "1024,768" > /sys/class/graphics/fb0/virtual_size
# fbset -fb /dev/fb0 -xres 1024 -yres 768 
# echo 1 > /sys/devices/platform/omapdss/display0/enabled

I am able to change the resolution successfully.

 

regards

-Nitin