Date: Wed, 17 Jan 2024 04:02:21 +0100 From: Jan Beich <jbeich@FreeBSD.org> To: Chris <bsd-lists@bsdforge.com> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: Alder lake supported? (graphics) Message-ID: <jzo8-mzlu-wny@FreeBSD.org> In-Reply-To: <adf36dd82476a266ec2152a0b38ce5bf@bsdforge.com> (Chris's message of "Tue, 16 Jan 2024 16:48:00 -0800") References: <adf36dd82476a266ec2152a0b38ce5bf@bsdforge.com>
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Chris <bsd-lists@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
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