Disable a faulty graphics card

[hohenheim]

Hello, I dropped my laptop...
The dedicated GC (Geforce 710m) started malfunctioning but it's still detected under windows but it seems to be preventing debian from booting.
I tried reinstalling it without a desktop environment, ran live linux mint,but I can't get past the screen below.
I tried pressing 'e' on the grub menu and ran the command module_blacklist=nouveau... nothing
Tried pressing 'c' and added that command just before 'linux /vm....' command...still nothing.
Any help or lead would be much appreciated guys

[stevepusser]

Are you saying it works in Windows?
What model is your laptop?
Is an Optimus model with both Intel and Nvidia graphics?

A Live session of Mint or MX Linux will not have to recover a journal, so you must not be really booting to a session of those. Try again and let us know what happens.

[hohenheim]

Thanks for the reply.
The gc doesn't work on windows, it's detected but can't start. (error code 0 in device manager properties)
So windows and 3d softwares run on the integrated intel HD 4000.
The laptop model is Toshiba satellite A560.

[Head_on_a_Stick]

You could try a grml or Arch Linux ISO image, they both boot to a console screen.

Then chroot into Debian, add the blacklist to /etc/modprobe.d/ and regenerate the initramfs.

EDIT: or just boot to a root shell by adding the init=/bin/bash kernel command line parameter then remount the root partition rw and fix things.

[stevepusser]

Debian, Mint, and MX Linux should by default show the display using the Intel GPU, unless you've done things in Debian with xorg.conf files. Or the Debian install could be damaged by the drop and emergency shutdown.

Have you managed to boot a Live session yet?

[hohenheim]

It worked! thankyouuuu
Reinstalled debian with xfce then booted with Grml with a disabled frame buffer (it got stuck otherwise) then followed what Head_on_a_Stick said;
chroot, blacklist the 'nouveau' module in modprobe.d/ and then ran "update-initramfs -u"
Worked like a charm, I can't thank you enough guys You're the best

[sickpig]

yes, way better than premium paid support! absolute legends, cheers guys u r pillars of this forum.

[p.H]

I tried pressing 'e' on the grub menu and ran the command module_blacklist=nouveau... nothing

AFAIK, this command does not exist. Where did you find it ?
The proper action was to add "modprobe.blacklist=nouveau" to the kernel command line (beginning with "linux").

The GPU malfunction may be due to damaged solder balls after the shock. You may fix it with a heat gun.