Interesting, the kernel is not showing anything about the framebuffer
device fb0. Could you check if in /dev there is a framebuffer device? There
should be a file called fb0 or fb with another number.
Can you also print the output of:

$ dmesg  | grep fbcon

This would be to check the kernel output if it tries to set a device for
outputting kernel messages to a framebuffer device.

I think there is an option missing in your kernelconfig. Did you build your
own kernel or are you using a binary or similar?

Am Mo., 24. Apr. 2023 um 19:08 Uhr schrieb <[email protected]>:

> On output of: $ dmesg | grep fb0
> on a box that doesn't show kernel text during boot:
>
> [    0.004012] ACPI: Reserving PCCT table memory at [mem
> 0xd8b68fb0-0xd8b6901d]
>
> this the output from a box that everything is working OK:
> [    0.000000] ACPI: Reserving PCCT table memory at [mem
> 0xd8b68fb0-0xd8b6901d]
>
> I even compare the difference between grub before and after upgrade, and
> new sys-boot/grub-2.06-r6
> inserted line:
>
> # Comment if you don't want GRUB to pass "root=PARTUUID=xxx" parameter to
> kernel
> GRUB_DISABLE_LINUX_PARTUUID=false
>
> but the above two lines are on my other boxes as well afater upgrade and
> text messages from kernel boot showing OK
>
>
>
> On 4/23/23 18:07, David Souza wrote:
> > Is your framebuffer device showing in /dev? It should be called
> /dev/fb0,1,2..... If yes could you post the output of
> > $ dmesg | grep fb0
> >
> > On Sun, Apr 23, 2023, 22:31 <[email protected] <mailto:
> [email protected]>> wrote:
> >
> >     No, I did not change anything, during kernel upgrade only run: make
> oldconfig
> >
> >     but nvidia-drivers-525.105.17 compiled  with a note:
> >     WARN: setup
> >     Detected potential configuration issues with used kernel:
> >         CONFIG_FB_SIMPLE: is set, recommended to disable and switch to
> FB_EFI or
> >           FB_VESA as it currently may be broken with >=kernel-5.18.13 +
> NVIDIA:
> >     https://github.com/NVIDIA/open-gpu-kernel-modules/issues/341 <
> https://github.com/NVIDIA/open-gpu-kernel-modules/issues/341>
> >           (feel free to ignore this if it works for you)
> >
> >     Though, I got same note compiling nvidia-drivers-470.182.03  and
> kernel boot normally showing text.
> >
> >     WARN: setup
> >     Detected potential configuration issues with used kernel:
> >         CONFIG_FB_SIMPLE: is set, recommended to disable and switch to
> FB_EFI or
> >           FB_VESA as it currently may be broken with >=kernel-5.18.13 +
> NVIDIA:
> >     https://github.com/NVIDIA/open-gpu-kernel-modules/issues/341 <
> https://github.com/NVIDIA/open-gpu-kernel-modules/issues/341>
> >           (feel free to ignore this if it works for you)
> >
> >     I don't use EFI on these systems.
> >     So make me wonder if has all to do with the nvidia-driver.
> >
> >     On 4/23/23 00:26, David Souza wrote:
> >      > Did you change something in your kernel config? I had the same
> problem once, because I forgot to enable these kernel options:
> >      > (From the AMD64 Handbook)
> >      >
> >      > Device Drivers
> >      >      Firmware Drivers --->
> >      >          EFI (Extensible Firmware Interface) Support --->
> >      >              <*> EFI Variable Support via sysfs
> >      >      Graphics support --->
> >      >          Frame buffer Devices --->
> >      >              <*> Support for frame buffer devices --->
> >      >                  [*] EFI-based Framebuffer Support
> >      >
> >      >
> >      > Regards,
> >      > David
> >      >
> >      > On Sat, Apr 22, 2023, 20:56 <[email protected] <mailto:
> [email protected]> <mailto:[email protected] <mailto:
> [email protected]>>> wrote:
> >      >
> >      >     I upgraded to kernel 6.1.19 and nvidia-525.105.17
> >      >
> >      >     But during boot text is not showing up/scrolling
> >      >
> >      >     --
> >      >     Thelma
> >      >
> >
>
>

Reply via email to