František Horínek

little update I mange to squeeze screen to 768x424 using modeline, the real output is still 800x480 configured with h3disp -m 31. root@orangepipc:~# cat /etc/X11/xorg.conf.d/* Section "Monitor" Identifier "Monitor0" Option "DPMS" "false" Option "PreferredMode" "800x480" Modeline "800x480" 24.16 800 808 888 976 480 481 484 495 -HSync +Vsync Modeline "768x424" 24.92 768 816 888 944 424 425 428 440 -HSync +Vsync EndSection Section "Screen" Identifier "MyScreen" Device "Allwinner A10/A13 FBDEV" Monitor "Monitor0" DefaultDepth 24 SubSection "Display" Depth 24 Virtual 768 424 ViewPort 32 0 Modes "768x424" "800x480" EndSubSection Now I only need to move it to the right by 32px

Hi, I am having problem with overscan on orangepipc on my car display. https://goo.gl/photos/19v3Ji2cAUMsLwoV6 Left border is cropped by 32 pixels and bottom is cropped by 52px. Resolution is 800x480 configured with h3disp -m 31. I am outputing video using HDMI-to-VGA reduction and then I transform VGA signal to RGBS using two XOR gates (so the car display understand the signal). Running self-build Armbian with ubuntu xenail on legacy kernel (3.4.113-sun8i). I want to crop or scale my desktop so it will fit the screen. I tried so far xrandr --transform (it seems that it is not supported) set env in uboot to enable overscan_x and y (works only in uboot, xserver does not start) adding .conf to xorg.conf.d: Section "Screen" Identifier "MyScreen" Device "Allwinner A10/A13 FBDEV" Monitor "Monitor0" DefaultDepth 24 SubSection "Display" Depth 24 Virtual 768 524 ViewPort 32 56 Modes "800x480" EndSubSection EndSection But it seems that xserver is ignoring the subsection. Maybe fbturbo is unable to use virtual displays? Is there any way how to rescale the desktop to fit the screen? Thank you Fero