Re: [gentoo-user] Do I need firmware for an integrated graphics unit?

[Alan Mackenzie <acm@muc.de>]

Hello, Peter.

On Tue, Aug 20, 2024 at 23:16:39 +0200, Peter Böhm wrote:
> Hello Alan,

> > Anyhow, I'm up to the stage of configuring the kernel, and I'm stuck at
> > the bit where I need to specify the firmware to be incorporated into the
> > kernel for the integrated graphics processor.

> Yes, you surely will need some firmware files for your GPU of your AMD CPU. The
> easiest way to find out what you need is:

> Boot with our GentooLiveCD (*) and ask:

> "dmesg | grep firmware"

I've done that, and see just three firmware files:

regulatory.db
regulatory.db.p7s
rtl_nic/rtl8125b-2.fw

..  The first, according to file, is a wireless regulatory database file.
The second is some variant of this, I think a signed version or
something.  The third is surely firmware for my Realtek 8125 Ethernet
chip.

That's not yet got me very far.

> You will see every loaded firmware file ... notice it and build it into your
> kernel.  ;-)

Might it be that my installation environment is running under VGA (it's
37 lines to the screen) rather than on a framebuffer?  These 37 lines
would fit just nicely into an 800x600 screen assuming characters were
8x16 pixels.

Maybe there's some parameter I could give the kernel at booting time to
use a framebuffer.

> *) It must be our GentooCD because we have a kernel patch for logging the
> loading of firmware files.


> Many Greetings,
> Peter

> P.S.: Maybe you know this already ? ->

> https://wiki.gentoo.org/wiki/User:Pietinger/Tutorials/
> Manual_kernel_configuration

I'll go and have a look at that file, thanks!

-- 
Alan Mackenzie (Nuremberg, Germany).