Thank you @danielt
$xrandr
Screen 0: minimum 320 x 200, current 2400 x 1080, maximum 65535 x 65535
DSI-1 connected 480x800+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
480x800 60.00*+
DSI-2 disconnected (normal left inverted right x axis y axis)
HDMI-1 connected primary 1920x1080+480+0 (normal left inverted right x axis y axis) 527mm x 296mm
1920x1080 60.00*+ 50.00 59.94
1600x900 60.00
1280x1024 75.02 60.02
1152x864 75.00
1280x720 60.00 50.00 59.94
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 60.00 59.94
640x480 75.00 60.00 59.94
720x400 70.08
xrandr showing 1600x900 resolution with 60Hz is supported. If i try to operate in 1600x900 with 60Hz, HDMI falling back to current resolution(1920x1080). Is it expected behaviour?
Thanks,
Arun