Re: No console anymore. How to figure this out.

Alan Mackenzie <[email protected]>
Newsgroups gmane.linux.gentoo.user
Message-ID <[email protected]>
Hello, Dale.

On Wed, Mar 18, 2026 at 23:39:16 -0500, Dale wrote:

[ .... ]

> I finally got around to rebooting.  I had Krename processing around 
> 60,000 files and it well . . . took a little bit.  Plus I been busy 
> outside.  Anyway, kernel line looks like this now.


> root@Gentoo-1 / # cat /proc/cmdline
> BOOT_IMAGE=/kernel-6.12.31-2 
> root=UUID=26e58ee4-9c8f-4efd-bbb3-215df71cf85e ro nvidia_drm.modeset=1
> root@Gentoo-1 / #


> I used tail -f to monitor dmesg and the messages file when I tested 
> this.  I went to a console, black screen and monitor powers off. When I 
> switch back to the GUI, dmesg and messages file report nothing new.  No 
> errors or even info about the switch.

> Well, one more thing that we know doesn't work.  Anything else?  I'd 
> really like to have my console back.  That said, I'm getting in a lot of 
> practice on booting and getting everything back to working. I can do it 
> a little faster now.  LOL

Could you try disabling the soft scrolling on the console in the kernel,
please.  It's CONFIG_FRAMEBUFFER_CONSOLE_SOFT_SCROLLBACK and is found
under make menuconfig at Device Drivers/Graphics support/Console display
driver support/Framebuffer Console support/Enable Scrollback Buffer in
System RAM.

This is the thing I added back into the kernel a few years ago after the
Linux project deleted it.  One other person with an nVidia board, who
contacted me by private email, had problems with the soft scrolling.  I
think she/he was also using nvidia-drivers rather than nouveau, though I
can't remember clearly any more.

It's got to be worth a try.

> Dale

> :-)  :-)

-- 
Alan Mackenzie (Nuremberg, Germany).
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