I recently got an Alder Lake based system, but had problems when loading i915kms. It would lockup hard and the power button was the only way out. I was given some support on the mailing list. But nothing worked. On a hunch I removed gpu-firmware-intel-kmod. And i915kms loaded w/o issue. Specifically, adlp_dmc_ver2_12.bin is the one being called. System: releng/14.0-n265380-f9716eee8ab4 Graphics: 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 PORTVERSION= 20230625 The following is from the system when loading i915kms w/o gpu-firmware-intel-kmod (I can't get any output to logs when the system locks up): drmn0: <drmn> on vgapci0 vgapci0: child drmn0 requested pci_enable_io vgapci0: child drmn0 requested pci_enable_io drmn0: [drm] Incompatible option enable_guc=-1 - undocumented flag [drm] Unable to create a private tmpfs mount, hugepage support will be disabled(-19). [drm] Got stolen memory base rx4c800000, size 0x3c00000 drmn0: could not load firmware image 'i915/adlp_dmc_ver2_12.bin' drmn0: [drm] Failed to load DMC firmware i915/adlp_dmc_ver2_12.bin. Disabling runtime power management. drmn0: [drm] Run pkg install gpu-firmware-kmod to install it drmn0: Adding i2c adapter i915 gmbus dpa lkpi_iic0: <LinuxKPI I2C> on drmn0 drmn0: Adding i2c adapter i915 gmbus dpb lkpi_iic1: <LinuxKPI I2C> on drmn0 drmn0: Adding i2c adapter i915 gmbus dpc lkpi_iic2: <LinuxKPI I2C> on drmn0 drmn0: Adding i2c adapter i915 gmbus tc1 lkpi_iic3: <LinuxKPI I2C> on drmn0 drmn0: Adding i2c adapter i915 gmbus tc2 lkpi_iic4: <LinuxKPI I2C> on drmn0 drmn0: Adding i2c adapter i915 gmbus tc3 lkpi_iic5: <LinuxKPI I2C> on drmn0 drmn0: Adding i2c adapter i915 gmbus tc4 lkpi_iic6: <LinuxKPI I2C> on drmn0 drmn0: Adding i2c adapter i915 gmbus tc5 lkpi_iic7: <LinuxKPI I2C> on drmn0 drmn0: Adding i2c adapter i915 gmbus tc6 lkpi_iic8: <LinuxKPI I2C> on drmn0 [drm] Connector eDP-1: get mode from tunables: [drm] - kern.vt.fb.modes.eDP-1 [drm] - kern.vt.fb.default_mode [drm] Connector HDMI-A-1: get mode from tunables: [drm] - kern.vt.fb.modes.HDMI-A-1 [drm] - kern.vt.fb.default_mode [drm] Connector DP-1: get mode from tunables: [drm] - kern.vt.fb.modes.DP-1 [drm] - kern.vt.fb.default_mode drmn0: could not load firmware image 'i915/adlp_guc_62.0.3.bin' drmn0: [drm] GuC firmware i915/adlp_guc_62.0.3.bin: fetch failed with error -2 drmn0: [drm] GuC firmware(s) can be downloaded from https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/i915 drmn0: 0xfffffe00c7142638Vdrmn0: Please file a bug on drm/i915; see https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs for details.drmn0: 0xfffffe00c7142698Vdrmn0: 0xfffffe00c71426d8Vdrmn0: [drm:0xffffffff82c9dc00s] 0xfffffe00c7142738Vuhub0: 16 ports with 16 removable, self powered drm1: Adding i2c adapter AUX A/DDI A/PHY A lkpi_iic9: <LinuxKPI I2C> on drm1 drm3: Adding i2c adapter AUX USBC1/DDI TC1/PHY TC1 lkpi_iic10: <LinuxKPI I2C> on drm3 [drm] Initialized i915 1.6.0 20201103 for drmn0 on minor 0 name=drmn0 flags=0x0 stride=6400 bpp=32 Thanks. --Chris
Alderlake isn't well supported in 5.15-lts, you need to use CURRENT with 6.1-lts to have it working properly. Based on previous reports (see https://github.com/freebsd/drm-kmod/issues/252) i915kms will load fine without firmware but you won't have gpu acceleration.
(In reply to Emmanuel Vadot from comment #1) Thank you very much for the information (however regrettable). Are there plans to add support to 14 anytime soon? Apologies for using the bugtracker for this. But I haven't found anywhere to get this information. Thanks again --Chris
(In reply to Chris Hutchinson from comment #2) 14.0 no plan, for 14.1 there is a bigger chance.
(In reply to Emmanuel Vadot from comment #3) Thanks! --Cheis
If it's any use, deleting the tgl firmware (.bin) is the part that's hanging it. It's being loaded after the adlp firmware somewhere for whatever reason.