6.0 and console on ThinkPad x220

[karu.pruun]

So I am I right to think that you can get the console fine but loading
i915 gives a frozen screen? To test this is true, remove automatic
loading of i915 from /etc/rc.conf and see if you get to the login
prompt. Then try manually loading i915 on console, as root do 'kldload
i915'. You can get more debug messages by setting 'drm.debug=0x777' in
/boot/loader.conf.

It will be a lot of debug output but might help diagnose the issue.

Question: when the screen freezes after kldloading i915, can you still
ssh into the machine? Can you do 'shutdown -r now' by typing on the
console?

Best

Peeter

--

On Wed, May 19, 2021 at 6:56 PM Chuck Musser <cmusser at sonic.net> wrote:
>
> I tried the following, which did change things but did not result in a working console at the end of the boot:
>
> - added "gop set 2" in /boot/loader.conf. mode 2 was 1024x768 and seemed to display fine in the loader prompt
>
> - moved the i915_load="YES" to /etc/rc.conf and removed drm_load="YES" entirely. It loads anyway, as you said.
>
> - Tried both removing the kern.kms_console=1 from /boot/loader.conf and leaving it in.
>
> With those changes, the top part of the screen is no longer garbled and more output from the boot is shown. But the output stops after:
>
> RPM wakelock ref not held during HW access<4>RPM wakelock ref not held during HW access<6>[drm] taking over the fictitious range 0xe0000000-0x10000000
> [drm] Initialized i915 1.6.0 20171023 for dev_name on minor 0
>
> In the dmsg, right after those lines is:
>
> kms console: xpixels 1366 ypixels 768
>
> That's a different resolution than was set with gop set earlier. Not sure if  that is significant.
>
> Chuck