Hi community,
I am working with L4.9-Morty in imx7d sabresd board. I am trying to change display resolution when it is running. I am doing below steps to change the resolution. But I am unable to change it.
Can anyone help me with this.
# fbset
mode "1920x1080-60"
# D: 148.500 MHz, H: 67.500 kHz, V: 60.000 Hz
geometry 1920 1080 1920 1080 16
timings 6734 148 88 36 4 44 5
hsync high
vsync high
rgba 5/11,6/5,5/0,0/0
endmode
# echo "S:1280x720p-60" > /sys/class/graphics/fb0/mode
# fbset
mode "1280x720-60"
# D: 74.250 MHz, H: 45.000 kHz, V: 60.000 Hz
geometry 1280 720 1280 720 16
timings 13468 220 110 20 5 40 5
hsync high
vsync high
rgba 5/11,6/5,5/0,0/0
endmode
# xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 0mm x 0mm
1920x1080 60.00*
# cvt 1280 720 60
# 1280x720 59.86 Hz (CVT 0.92M9) hsync: 44.77 kHz; pclk: 74.50 MHz
Modeline "1280x720_60.00" 74.50 1280 1344 1472 1664 720 723 728 748 -hsync +vsync
# xrandr --newmode "1280x720_60.00" 74.50 1280 1344 1472 1664 720 723 728 748 -hsync +vsync
# xrandr --addmode default 1280x720_60.00
xrandr: Failed to get size of gamma for output default
# xrandr --output default --mode 1280x720_60.00
xrandr: Failed to get size of gamma for output default
xrandr: Configure crtc 0 failed
# xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1280 x 720, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 0mm x 0mm
1920x1080 60.00*
1280x720_60.00 59.86
Thanks,
Solanki Deven
