Hi,

if even displaying the console login failed, then the hole display
system has gone nuts...but since the boot process as such (that is:
the bios prompt right after POSTing) is visible, I would say, that
there is no physical problem (that is: cable connected to port 2 of 
the monitor while the monitor is switched to port 1 and such).

I would try this:
Boot your PC, ssh into the PC and download the according
nvidia-drivers directly from NVIDIA of the same version.

quickpkg the installed drivers and remove them

Check whether /usr/src/linux links to the kernel
sources of the kernel version you are booting.

Install the NVIDIA-drivers you have downloaded.

Reboot.

Background:
The portage package does not install nvidia-drivers correctly -
in my case, X and such works fine but RTX/Optix which is used
by Blender was defunc. After installing the original package
and masked the one which came with portage everything works
fine.

Cheers!
Meino





On 06/08 06:20, Raffaele BELARDI wrote:
> > -----Original Message-----
> > From: [email protected] <[email protected]>
> > Sent: Monday, June 8, 2020 18:14
> > To: [email protected]
> > Subject: Re: [gentoo-user] clone root from HDD to SSD causes no video with
> > NVIDIA driver
> > 
> > You said, you are able to ssh into your PC.
> > I would try the following: Boot the PC, ssh into it and disable the start 
> > of X.
> > Boot again: Are you getting the console login successfully?
> 
> X is started by lxdm, which is started by an /etc/local.d/ script. I removed 
> that, after reboot I no longer see X processes, but no conole except for SSH.
> Syslog still shows the nvidia module being loaded. I removed 'modules' from 
> boot runlevel, nvidia is still loaded. I unmerged nvidia-drivers, nvidia 
> still loaded. This is puzzling me.
> 
> > Can you check, whether /dev , /proc , /sys and other directories of a 
> > special
> > function are created and filled correctly?
> > Are the permissions ok?
> > Is /run available and setup correctly?
> 
> To the best of my knowledge yes, they look fine.
> 
> > Are there any leftovers from the root@hd in /etc/fstab?
> 
> I rewrote fstab using UUID instead of /dev/sdx, there shouldn't be problems 
> there.
>  
> > If you get to console successfully, is it possible to start X from the
> > commandline? What is printed on the terminal?
> > What does X.log say?
> 
> No console except SSH. I'm not sure I can invoke startx from an SSH.
> 
> Thanks,
> 
> raffaele
> 

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