How to ssh manually set screen definition?

I decided to update my appe tv 2 through nitotv update all.

After the update, the apple tv rebooted, it took a long while looking at a spinning circle. It never got to front row.

ssh apt-get upgrade yielded mobilesubstrate error. Fixed thanks to changing Mobilesubstrate to mobilesubstrate in apt.modmyi.com_dists_stable_main_binary-iphoneos-arm_Packages

Problem of black screen persisted, so I uninstalled xbmc, atvflash and nitotv.

Problem still persists. While the screen remains black, I noticed that the tav light sometimes blinks exactly once, switching signal on my projector on and off (black screen remains).

I suspect something went wrong during the update with the Hz screen definition.


Does someone know how to manually set the screen definition of apple tv so that it shows front row instead of a black screen and rebooting because it doesn’t find the projector? Thanks!