Reply To: Rotating everything by 90 degree

[Anonymous]

So I’ve tried MegaDrive which uses the picodrive emulator.
With the same settings as before (both boot.cfg and retroarch.cfg set to rotation=1)

The emulator runs but the image is standard orientation, I have enabled FPS in retro arch, and this was actually rotated, so the retroarch overlay rotates fine but the emulator runs in the default orientation.

I turned off shaders, same thing no orientation in picodrive. I tried to run DGEN emulator and the emulator wouldn’t load correctly.

I think this might be something to do with supported resolution modes of the monitor and the emulator.

If you want to know what modes are supported have a look at this – http://elinux.org/RPiconfig

Which values are valid for my monitor?
Your HDMI monitor may support only a limited set of formats. To find out which formats are supported, use the following method.

Set the output format to VGA 60 Hz (hdmi_group=1 hdmi_mode=1) and boot up the Raspberry Pi
Enter the following command to give a list of CEA supported modes
/opt/vc/bin/tvservice -m CEA
Enter the following command to give a list of DMT supported modes
/opt/vc/bin/tvservice -m DMT
Enter the following command to show your current state
/opt/vc/bin/tvservice -s
Enter the following commands to dump more detailed information from your monitor
/opt/vc/bin/tvservice -d edid.dat
/opt/vc/bin/edidparser edid.dat
The edid.dat should also be provided when troubleshooting problems with the default HDMI mode

More information available here – http://www.raspberrypi.org/documentation/configuration/config-txt.md