Have you try to boot into "live-mode/rescue" and launch the install process from it ?

No really, could you tell me how to do that?

When you boot into your USB (or anything else which host .iso), your have 2 choices.
Juste select the second and you'r good to go

It work, but I can't install it from the live mode

A workaround is to write or save your xrandr profile under elementary, put it in an easy place and run the script in the terminal without seeing it when you boot into Deepin if Deepin has randr by default.

Well this is going to sound a little bit weird but I cant use elementary either now.

Sorry about the delay...

You said that you can boot into livemode but can't launch install ????
Have you any error message ?
Do you see a log, on your desktop ?

If you can't install from livemode and can't launch elementary I would assume that the problem is a bad HDD, but you need to give more information so we can help you. Any errors on the livemode and just for reference on elementary as well.

Well after the boot I press Alt+Ctrl+F6 and.thisa appears (Elementary)

And with deepin, in the live mode when I try to install it this appears

Edited by mrsanchez at 2016-9-2 20:08

Can you show us the installation log? By the way what installation medium are you using? Are you using a flash drive, a CD or (the worst ideia I ever had but it was an emergency) an SD card.
Also the problem with elementary is you probably need to update it, do you have no GUI?

When deepin Display the boot Menu , Press TAB to edit the grub option and  add this line at end of GRUB_CMDLINE_LINUX_DEFAULT="video=LVDS-1:d video=VGA-1:e" . Then press F10 or Control+X to save grub boot with external monitor (don't forget to connect the external monitor ), This will direct your video to external monitor. After successful installation modify /etc/default/grub and add  "video=LVDS-1:d video=VGA-1:e " and save and reboot (permanent solution)

Here :d disable :e enable. after that your entry look like GRUB_CMDLINE_LINUX_DEFAULT="video=LVDS-1:d video=VGA-1:e acpi=force elevator=noop i8042.noloop=1 usbhid.quirks=0xeef:0x1:0x40"acpi=force elevator=noop i8042.noloop=1 usbhid.quirks=0xeef:0x1:0x40"