Problem with radeondrm after install OpenBSD 7.5

[bgpepi]

Hi friends.
I have MacBook pro 15" mid2015 model, with Intel iris and Radeon R9 M370x(dual graphics) variant.
Is it possible to disable Radeondrm video card with boot option and use only Intel Iris graphic with this laptop?
After install OpenBSD 7.5 there is a problem with radeondrm graphic M370x.
Here is screenshot from my display:Attach File

[bgpepi]

Also I try disable radeondrm from boot menu without success
After boot -c command virtual terminal freezes and keyboard doesn't work
Is not posiible to write "disable radeondrm"

[blackhole]

I'm not familiar with Apple hardware, but found this:

https://marc.info/?l=openbsd-misc&m=142228809924149&w=2

So it would appear that it isn't frozen, more likely you have no USB keyboard input.

Can you have a look in that machine's EFI settings and see if there is any kind of "Legacy USB" option and if so, enable it?

Beyond that I'm out of ideas.

[bgpepi]

What I know... is not possible to see EFI settings on MacBook laptops.
Is it possible to install on MicroSD card AMD64 image? I know for ARM image, but for AMD64 not sure?

[TronDD]

Assuming you got OpenBSD installed, put the command to disable the radeon driver into /etc/bsd.re-config

[bgpepi]

Originally Posted by TronDD

Assuming you got OpenBSD installed, put the command to disable the radeon driver into /etc/bsd.re-config

I am put "disable radeon" on this file /etc/bsd.re-config, after I am create but
without success.

[TronDD]

Is "radeon" the correct driver name? What's in your dmesg?

[bgpepi]

Sorry, "radeondrm" is the correct driver.

[bgpepi]

From this post:
https://daemonforums.org/showpost.ph...2&postcount=23
I relink a new kernel with the revised configuration. After that /usr/libexec/reorder_kernel, then reboot.
But there is now other problem after boot:
init: can't open /dev/console: Device not configured openbsd
https://fastpic.org/fullview/123/202...0169f.jpg.html

[jggimi]

1. Please post your dmesg(8).
2. Please post the contents of /etc/bsd.re-config.

[bgpepi]

Originally Posted by jggimi

1. Please post your dmesg(8).
2. Please post the contents of /etc/bsd.re-config.

1.dmesg:attach
2./etc/bsd.re-config
disable radeondrm

After that /usr/libexec/reorder_kernel, then reboot.
But there is now other problem after boot:
init: can't open /dev/console: Device not configured openbsd

[jggimi]

I see a lot of timeouts with the graphics hardware. I recall that Radeon graphics requires downloading and installing third party firmware. But you may not be able to get this system into a state where you can install the firmware (with fw_update(8)).

Your wsdisplay(4) driver is attached via radeondrm(4). I assume that when you disabled radeondrm(4), you then lost access to wsdisplay(4). I don't see the Intel Iris video hardware in the dmesg.



In the RAMDISK kernel used for install, the radeondrm(4) driver is not configured, and for this simple, minimal system, wsdisplay(4) is attached via efifb(4).

[jggimi]

I ran a quick test on this laptop, which uses Intel video rather than Radeon.

Disabling inteldrm(4) at boot (with boot> -c) caused wsdisplay(4) to attach via efifb(4), and non-accelerated X11 graphics were available via the wsfb(4) driver.

I don't have any MacBook hardware, and could not replicate this problem. You may want to reach out to the Project via the misc@ mailing list: http://www.openbsd.org/mail.html

[bgpepi]

I update the firmware with fw_update. After that enable xenodm, install firefox
Here is what I have for graphics card:

p# dmesg | grep radeondrm
radeondrm0 at pci1 dev 0 function 0 "ATI Radeon HD 8800M" rev 0x83
drm0 at radeondrm0
radeondrm0: msi
radeondrm0: VERDE
radeondrm0: 1920x1080, 32bpp
wsdisplay0 at radeondrm0 mux 1: console (std, vt100 emulation), using wskbd0
p# dmesg | grep intel
p# dmesg | grep inteldrm
With fw_update -install only intel, but I am not see inteldrm.
How to force install inteldrm?
I have:
-rw-r--r-- 1 1001 1001 12822293 Mar 31 17:09:05 2024 intel-firmware-20240312v0.tgz
-rw-r--r-- 1 1001 1001 12011089 Mar 31 17:09:03 2024 bwfm-firmware-20200316.1.3p3.tgz
-rw-r--r-- 1 1001 1001 3452203 Mar 31 17:09:27 2024 radeondrm-firmware-20240220.tgz

This is my laptop:
https://support.apple.com/en-us/111955
1.Intel Iris Pro Graphics
2.AMD Radeon R9 M370X with 2GB of GDDR5 memory and automatic graphics switching

[jggimi]

How to force install inteldrm?

OpenBSD uses a monolithic kernel. All drivers are already included. The kernel probes the hardware during boot, and that discovery process defines which drivers are active and in use. All those driver attachments listed in your dmesg(8) come from this process during boot.