Date: Wed, 20 Jan 2021 19:26:55 -0500 (EST) From: Chris Hill <chris@monochrome.org> To: FreeBSD Questions List <questions@freebsd.org> Subject: drm-kmod kills FreeBSD Message-ID: <alpine.BSF.2.20.2101201919360.73682@tripel.monochrome.org>
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Hello, list.
This is a head-scratcher for me; any help or clues will be most welcome.
I had been running xorg on 12.2-R [1], but recently had a disk failure
and had to reinstall. Although I (thought I had!) kept meticulous notes,
the onboard Intel UHD 630 graphics are just not happening. [2] Note, I'm
not even to the point of attempting to start X; I'm just trying to get
the system to boot and recognize the onboard graphics.
I've installed both drm-kmod-g20190710 and
drm-fbsd12.0-kmod-4.16.g20201016 (not at the same time) [3], and put
kld_list="/boot/modules/i915kms.ko" in /etc/rc.conf, as instructed.
When I boot the system like that, it appears to hang partway through the
console boot messages. The screen goes blank, and the network interface
becomes unresponsive. The remedy is a hard shutdown from the power
button, boot from a memstick and remove the offending line from rc.conf.
I get the same result from `kldload /boot/modules/i915kms.ko`.
I *think* it's hanging in the neighborhood of loading drm; a dmesg I
saved from a pre-failure successful boot has lines like
drmn0: <drmn> on vgapci0
and
[drm] Connector DP-1: get mode from tunables:
...where we currently see none of that.
Thanks very much.
[1] The hardware is a Dell Precision 3630 tower workstation. The OS is a
fresh install, with freebsd-update applied just after.
$ uname -mvU
FreeBSD 12.2-RELEASE-p1 GENERIC amd64 1202000
[2] The graphics system appears thus in the output of `pciconf -lv`:
vgapci0@pci0:0:2:0: class=0x030000 card=0x08711028 chip=0x3e928086
rev=0x00 hdr=0x00
vendor = 'Intel Corporation'
device = 'UHD Graphics 630 (Desktop)'
class = display
subclass = VGA
[3] As of this writing, I have
$ pkg info
drm-fbsd12.0-kmod-4.16.g20201016 DRM modules for the linuxkpi-based KMS components
gpu-firmware-kmod-g20201213 Firmware modules for the linuxkpi-based KMS components
pkg-1.16.1 Package manager
--
Chris Hill chris@monochrome.org
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