I was able to do it! My steps:

ssh on my recalbox cp /etc/X11/xinit/xinitrc ~/.xinitrc add this to /recalbox/share/system/.xinitrc
xrandr -s 1920x1080 uncomment the following line and put my laptop screen :
xrandr --output eDP1 --off reboot!

So i got to the point where i needed to download the ftp clients i downloaded a couple such as filezilla and winSCP and I cant connect even after connecting wifi to recalbox. Im at a loss was trying to get this done for the holidays and play with family.

Any help is greatly appreciated

I did it a while back. I actually preferred to have it on my USB stick, for a whole host of reasons not really relevant for this thread.

Anyway, I am not in front of my recalbox, so I'm going from memory. I believe you need to go to system settings, select whatever recalbox lists as your hard drive, and you select it. Restart the computer back into your OS (Windows, for me). On the C drive, there should be a folder called recalbox. Place your ROMs in their respective folders in the roms folder. Reboot back into recalbox and your ROMs should appear. Let me know how that works for you.

Hi thanks for your quick answer.
Unfortunately there is no option in BIOS related to GPU.
I've just read on some linux forum that the parameter could be saved and need a restart to order.
So i will try to boot an OS from USB, load Optimus and restart on recalbox.
I'll keep you advise.

@jdpt93
yo tuve ese problema con una net pedorra q le puse batocera y cuando voy a la configuraciones me daba la opcion de elegir la salida vga auxiliar y con un convertidor de vga a hdmi y lo usaba con una tv por hdmi y despues de unos dias como magia esa opcion desaparecio, solo daba video por la pantalla de la net, cuando voy a las opciones de video para cambiar la salida nuevamente a vga solo te permitia ponerlo en automatico o una opcion q decia LVS1 o algo asi q no servia para nada porq no hacia nada basicamente.. lo q hice fue al encender la net bajo la tapa y automaticamente empieza a dar video por la salida vga nuevamente y cuando enciende voy a las opciones de video y guala aparece otra vez la opcion de elegir la salida vga auxiliar cabe mensionar q fue batocera no recalbox pero como nadie dio una solucion a este tema y veo q es viejo ya porai esta data le sirve a alguien

Probably you should try first if there's any output from VGA only (no HDMI adapter). Maybe with a monitor or other tv if you can.

Also, try to stop ES via SSH with "/etc/init.d/S31emulatiostation stop" and start ES with "startx". See the verbose if there's any info about resolution or something.

@josklown said in Problem with screen cut on laptop with Projector:

TENDRAS ALGUN CORREO UNDEPENDIENTE PARA PODER ENVIARTE MAS INFORMACION, PORQUE EN EL FURUM DE ME PERMITE NI ENVIATE IMAGENES PARA QUE VEAS QUE ES LO QUE ME SALE EN SUPPORT CON LUJO DE DETALLE! incluso hasta video para que sea mas facil

@pceslayer Yep, I guess so!... I'm going to have another crack at it tomorrow. I'll update you if I find anything.

@sauromayne I have the same problem

@userreddit anyway if you want to plug directly your pi to your laptop through an ethernet cable, you need:

a crossover ethernet cable (not a standard cable because there is no swtich between the 2 machines) to setup a dhcp server on your laptop

Hello please connect you on ssh on your laptop, then use the command alsamixer.
On the right, go on Loopback Mixing disable it and exit.

Not currently. The devs need to work on that.