Re: [gentoo-user] clone root from HDD to SSD causes no video with NVIDIA driver

[J. Roeleveld]

On Tuesday, June 9, 2020 5:43:33 AM CEST tuxic@××××××.de wrote:
> 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: tuxic@××××××.de <tuxic@××××××.de>
> > > Sent: Monday, June 8, 2020 18:14
> > > To: gentoo-user@l.g.o
> > > 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


For plain console (TTY1,...) you need to enable EFI_FB in the kernel.

I use Nvidia and also have this enabled in the kernel, so it can work 
together.
I also use the nvidia-drivers package provided in Portage. Not everything is 
added, but most is. The RTX/Optix libraries are added when using a "multilib" 
profile, judging from the ebuild.

As you came from an older, non-GPT setup, I am assuming this is also the first 
attempt to boot using EFI?

--
Joost