Re: Radeon HD 5450?

[RVP <rvp%SDF.ORG@localhost>]

On Wed, 11 May 2022, Michael van Elst wrote:

> Would be interesting to see what happens, when in EFI mode you
> switch to the graphics mode with the gop command before booting
> the kernel....

One of the first things I tried with my integrated IvyBridge Intel
GPU. No change with the gop command in UEFI mode. (I set a 1024x768
mode which was what DRMKMS seems to go for on my HW.) I only got
a usable console in UEFI mode with this hack:

https://mail-index.netbsd.org/tech-kern/2022/04/12/msg028065.html

In CSM mode, the modesetting driver works OK except for minor
glitches.  But, if you try the `wsfb' Xorg driver on top of `intelfb'
you get what I can only describe as a 1-line framebuffer (graphics
mode). The same thing with a FB test program on the console. The
framebuffer looks like a single line of 1024? pixels right at the
top of the screen.

And, compiling-in some fonts (notably SPLEEN12x24--anything which
doesn't seem to be a multiple of 8x8) causes the kernel to reboot
right at the start.

Haven't had the time to hunt any of these snarks yet...

-RVP