https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234646
Bug ID: 234646
Summary: kldload radeon kms - black screen
Product: Base System
Version: 12.0-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: lum...@gmail.com
Created attachment 200816
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=200816&action=edit
xorg.log and part of /var/log/messages
My system is FreeBSD 12.0-RELEASE (amd640), new installed on the new hard
drive.
Computer is iMac with Radeom 4850 graphics card, the boot is UEFI and
everything works except graphics card problem.
When I kldload /boot/modules/radeonkms.ko I got black screen and computer is
still responsive.
I try also to boot computer with hw.syscons.disable=1 in /boot/loader.conf and
in /etc/rc.conf I have kldload /boot/modules/radeonkms.ko
and again black screen.
I have installed drm-legacy-kmod and xf86-video-ati-legacy but I tried also
with new ati driver and drm for 12 and the same result.
On the old system when I use ati driver version 7.9 and kldload radeon.ko from
kernel worked without problem. On the old system the new ATI driver didn't work
and none of the drm-kmod didn't work too.
Now I am using scfb driver and it works.
I do not know if is a bug in the drivers or something else.
Thank you.
Please check attached logs.
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