Hi Thomas,
after discussion with Niclas and I explained him that 12.1-RELEASE works but
12-STABLE not, he mentioned to build and install "drm-fbsd12.0-kmod"
from ports, but also "gpu-firmware-kmod" from ports (instead of
prebuild pkg), what fixed the issue in my case. Now startx and i3 works fine.
Here how I installed the two ports;
https://github.com/NilsJohannsen/BSD-Journal/blob/master/desktop/drm/install-drm-intel.sh
Here my hardware probe: https://bsd-hardware.info/index.php?probe=2e8c0ef401
Regards, Nils
Gesendet:?Samstag, 08. August 2020 um 14:40 Uhr
Von:?"Thomas Zander" <riggs at freebsd.org>
An:?"Niclas Zeising" <zeising+freebsd at daemonic.se>
Cc:?"Nils Johannsen" <NilsJohannsen at gmx.de>, freebsd-stable
at freebsd.org
Betreff:?Re: drm i915kms on 12.1-STABLE (r363237)
On Tue, 21 Jul 2020 at 12:53, Niclas Zeising
<zeising+freebsd at daemonic.se> wrote:
> On 2020-07-17 11:49, Nils Johannsen wrote:
> > yesterday I installed 12.1-STABLE [1] with kernel version `uname -K`
1201519 on my ThinkPad E490 with 'Intel UHD Graphics 620' [2].
> > But if I install the 'drm-fbsd12.0-kmod' and load the driver
`kldload /boot/modules/i915kms.ko` it will only show a black screen until I
manually poweroff the notebook.
> > See the `/var/log/messages` [3] below. The 'drm-fbsd12.0-kmod'
from pkg [4] behaves the sames as if I build it manually from ports. On
12.1-RELEASE it worked just fine.
> Whiskey Lake isn't supported by drm-fbsd12.0-kmod.
I don't think this is the root cause. I am seeing the exact same issue
after upgrading a Sandy Bridge machine with on-chip-GPU to a recent
-STABLE. Worked perfectly fine before with the abandonware-i915kms in
base as well as with drm-legacy-kmod. Now both are showing a mere
black screen, just like Nils reported. Maybe the recent MFCs of
linuxkpi stuff broke something. I'll build some kernels and modules
and see if I find the issue. Meanwhile, if it's been discovered (and
fixed) already, let me know.
Riggs