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

On 3/16/26 10:49 AM, Alan Mackenzie wrote:
> Hello again, Dale.
>
> On Mon, Mar 16, 2026 at 10:03:26 -0500, Dale wrote:
>> On 3/16/26 6:18 AM, Alan Mackenzie wrote:
> [ .... ]
>
>>> Not much of one, but could you please check that
>>> CONFIG_FRAMEBUFFER_CONSOLE is enabled in your kernel?  It's found at
>>> Device Drivers/Graphics support/Console display driver
>>> support/Framebuffer Console support.
>>> Without this, a there is no console to display on the framebuffer.  But
>>> seeing as how you see boot messages, it's probably set anyway.  But maybe
>>> you're seeing the boot messages through grub's text handling, I don't
>>> know.  Switching the display from boot loader to kernel, then from one
>>> framebuffer to another is complicated, and probably not wholly defined.
>>> But it's got to worth the time for a quick check.
>>>> Thanks.
>> I did a search for it.  This is the part of the screen, in case some
>> other setting is wrong in that section.  I edited it to make it not line
>> wrap.  Nothing important missing tho.
>
>
>> (80) Initial number of console screen columns
>> (25) Initial number of console screen rows
>> [*] Framebuffer Console support
>> [*]   Enable legacy fbcon hardware acceleration code
>> [*]   Enable Scrollback Buffer in System RAM           <===========
>> (128)   Scrollback Buffer Size (in KB)
>> [*]     Enable a working GPM for scrolled back scrollback buffer in
>> System RAM
>> -*-   Map the console to the primary display device
>> [ ]   Framebuffer Console Rotation
>> [ ]   Framebuffer Console Deferred Takeover
>
>
>> That look like the same as a working system you have?
> It does, but ...
>
>> Thanks for the help.  As you said, it only takes a minute to check. :-D
> Just as a matter of interest, could you please try disabling "Enable
> Scrollback Buffer in System RAM".  This is an option I am completely
> familiar with (having written it), and it might be there's a bug in it
> which has only just been triggered by the new nvidia-drivers.
>
> It's got to be worth a try.
>
>> Dale
>> :-)  :-)


Working on this next.  I got the kernel built and ready.  Now to 
reboot.  May do that after I update this weekend.

Dale

:-)  :-)