Hello,
i use a 4:3 Bellinea monitor, RPI3 -> HDMI-DVI Adapter -> Belinea
The datasheet shows this possible resolutions
640 x 480 75 / 75
800 x 600 75 / 75
1024 x 768 75 / 75
1152 x 864 75 / 75
1280 x 1024 75 / 75
1600 x 1200 – / –
i try diffent settings in my config.txt, the last is this one:
hdmi_safe=1
disable_overscan=1
hdmi_group=2
hdmi_mode=36
# hdmi_drive=2
config_hdmi_boost=0
hdmi_force_hotplug=1
sdtv_mode=2
in the gamesettings i use 4/3, also in the advanced settings for the emulators.
the gui works fine, here i have a fullscreen.
but, if i start a game, i have a horizontal compressed screen, means that i have
black bars on the left and rigth side.