intel graphics regression? between r332432 and r333982

[Anton Shterenlikht]

I'm looking for help to make graphics work on Dell Precision 3520.

This did work in r332432:
http://freebsd.1045724.x6.nabble.com/Dell-Precision-3520-laptop-help-with-dual-graphics-card-td6249818.html

I now updated to:

# uname -a
FreeBSD z.net 12.0-CURRENT FreeBSD 12.0-CURRENT #0 r333982: Thu May 24 21:24:22 BST 2018 ***@z.net:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64

and I cannot get graphics anymore.
Some details:

# pciconf -lv | grep -A3 vga
***@pci0:0:2:0: class=0x030000 card=0x07a91028 chip=0x191b8086 rev=0x06 hdr=0x00
vendor = 'Intel Corporation'
device = 'HD Graphics 530'
class = display
--
***@pci0:1:0:0: class=0x030200 card=0x07a91028 chip=0x13b410de rev=0xa2 hdr=0x00
vendor = 'NVIDIA Corporation'
device = 'GM107GLM [Quadro M620 Mobile]'
class = display

Somebody in questions@ suggested
https://github.com/ahacking/freebsd-gpu-off
to disable one of the 2 devices.
Not sure if this worked as expected.
I now have:

# cat /usr/local/etc/gpu-off.conf
export methods="\_SB.PCI0.PEG0.PEGP._OFF"

I built graphics/drm-next-kmod
and added kld_list="/boot/modules/i915kms.ko"
to /etc/rc.conf.

However, on boot I see:

KLD drm.ko: depends on kernel - not available or version mismatch
linker_load_file: /boot/modules/drm.ko - unsupported file type
KLD i915kms.ko: depends on drmn - not available or version mismatch
linker_load_file: /boot/modules/i915kms.ko - unsupported file type

I can still load these modules manually:

***@z:~ # kldload drm
***@z:~ # kldload i915kms
info: [drm] Initialized drm 1.1.0 20060810
***@z:~ # kldstat
Id Refs Address Size Name
1 44 0xffffffff80200000 23fad18 kernel
2 1 0xffffffff825fc000 29bc8 if_iwm.ko
3 1 0xffffffff82626000 1bb438 iwm8265fw.ko
4 1 0xffffffff831fa000 be5c geom_bde.ko
6 1 0xffffffff83206000 210 acpi_call.ko
7 1 0xffffffff83207000 2388 ums.ko
8 1 0xffffffff8320a000 1780 uhid.ko
9 1 0xffffffff8320c000 10c70 drm.ko
10 1 0xffffffff8321d000 7d0e0 i915kms.ko
11 1 0xffffffff8329b000 40eb0 drm2.ko
12 4 0xffffffff832dc000 1ef0 iicbus.ko
13 1 0xffffffff832de000 ec0 iic.ko
14 1 0xffffffff832df000 1570 iicbb.ko


Still, starting X I get in /var/log/Xorg.0.log

[ 429.258] (EE) open /dev/dri/card0: No such file or directory

Give me a hint

Anton

[Jean-Sébastien Pédron]

Post by Anton Shterenlikht
I built graphics/drm-next-kmod
and added kld_list="/boot/modules/i915kms.ko"
to /etc/rc.conf.
KLD drm.ko: depends on kernel - not available or version mismatch
linker_load_file: /boot/modules/drm.ko - unsupported file type
KLD i915kms.ko: depends on drmn - not available or version mismatch
linker_load_file: /boot/modules/i915kms.ko - unsupported file type

Hi!

You need to make sure that the base sources you use to build
graphics/drm-next-kmod match the kernel you are running. And currently,
this is not the case according to the error.
When you only specify the module name, as opposed the the absolute path
like in /etc/rc.conf, you load the module compiled with the kernel (e.g.
/boot/kernel/i915kms.ko), which is different from the one installed by
drm-next-kmod. And the one built with the kernel doesn't support your GPU.