On 2024-01-16 19:02, Jan Beich wrote:
Chris <bsd-li...@bsdforge.com> writes:
I upgraded to an alder lake based machine and installed 14.
But I can't seem to get the intel graphics loaded (drm-515-kmod).
It simply freezes at load.
Are Alder lake graphics supported?
Try drm-61-kmod instead (with gpu-firmware-intel-kmod-alderlake >=
20230625).
Reported success in
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=270888#c8
releng/14.0-n265380-f9716eee8ab4
12th Gen Intel(R) Core(TM) i3-1215U
vgapci0@pci0:0:2:0: class=0x030000 rev=0x0c hdr=0x00 vendor=0x8086
device=0x46b3 subvendor=0x17aa subdevice=0x3b3a
vendor = 'Intel Corporation'
device = 'Alder Lake-UP3 GT1 [UHD Graphics]'
class = display
subclass = VGA
0x46b3 aka ADL-P is unstable with Linux < 5.17 or in drm-515-kmod.
https://github.com/torvalds/linux/commit/dfb924e33927
https://github.com/freebsd/drm-kmod/commit/3403defd86e5
include/drm/i915_pciids.h contains a list of supported Intel GPUs.
drivers/gpu/drm/i915/i915_pci.c with .require_force_probe contain
a list of unstable GPU generations. Previously, Linux < 5.5 used
.alpha_support and Linux < 4.9 used .preliminary_hw_support.
drm-kmod doesn't support hw.i915kms.force_probe (via loader.conf or kenv)
tunable yet thus cannot override .require_force_probe for specific GPUs.
Instead it sets DRM_I915_FORCE_PROBE="*" to enable all unstable support.
https://github.com/freebsd/drm-kmod/commit/054cb0598cab
Thank you for the informative report, Jan.
Unfortunately I don't pass the conditional in Makefile for FreeBSD 15 or
greater.
I'm on 14. Commenting that conditional indicates I don't have a necessary
file (linux/iosys-map.h). So looks like I'll we'll have to wait. Or I'll
need to track 15. :(
Thanks again! :-)
--Chris
