Debian Hardware :: Missing Mode Into Xrandr

I have a notebook Asus X-serie with a

Code: Select all# lspci
00:00.0 Host bridge: Intel Corporation ValleyView SSA-CUnit (rev 0c)
00:02.0 VGA compatible controller: Intel Corporation ValleyView Gen7 (rev 0
00:13.0 SATA controller: Intel Corporation ValleyView 6-Port SATA AHCI Contller (rev 0c)
00:14.0 USB controller: Intel Corporation ValleyView USB xHCI Host Controll (rev 0c)

[CODE]..

However I would like to display the same too onto my CRT. My crt of my pc notebook is blank. Nothing. I read a lot and nothing. I read on xrandr but few info:

Adding new modes

Under some circumstances, some modes might be missing. For instance, if the monitor does not report correct EDID information. Or if the output didn’t have a CRTC available at startup because another output was using it and you disabled it in the meantime.

If a mode exist, you may add it to one output with:

$ xrandr --addmode VGA1 800x600

If the mode does not exist, you may first create it by passing a modeline:

$ xrandr --newmode <ModeLine>