Re: kldload i915kms screen goes black

On Mon, 05 Dec 2022 23:08:40 -0800
"Pat Maddox" <pat@patmaddox.com> wrote:

> On 5 Dec 2022, at 22:18, Pat Maddox wrote:
> 
> > On 5 Dec 2022, at 21:18, Takanori Watanabe wrote:
> >
> >> On Mon, Dec 05, 2022 at 09:43:17PM -0800, Pat Maddox wrote:
> >>> On 5 Dec 2022, at 20:55, Chen, Alvin W wrote:
> >>>
> >>>>>
> >>>>> I have a newly-built system with an ASUS Prime Z590M-Plus and 
> >>>>> Intel
> >>>>> 10900k
> >>>>> with onboard graphics (UHD 630, according to intel).
> >>>>>
> >>>>> I specifically chose a 10th gen processor because I believed it 
> >>>>> was
> >>>>> well-
> >>>>> supported by 13.1+. Unfortunately I can?t even install 13.1
> >>>>> (https://urldefense.com/v3/__https://forums.freebsd.org/threads/cant-
> >>>>> install-i-just-get-a-little-white-box-and-a-mouse-
> >>>>> cursor.87334/__;!!LpKI!iRRMC3ef9hbS1NKXTBUoIDxlVz9pU_m1Jocnzh2Tlxfd
> >>>>> s5SnkbHHXEM4iKqU7weuEiObV8rfJXfY$ [forums[.]freebsd[.]org])
> >>>>>
> >>>>> I have successfully installed
> >>>>> FreeBSD-14.0-CURRENT-amd64-20221201-d1f3abc89250-259495.
> >>>>>
> >>>>> When I run `kldload i915kms`, the screen just goes black.
> >>>>>
> >>>>> I have never used graphics before on FreeBSD, so I?m not sure 
> >>>>> where
> >>>>> to
> >>>>> begin diagnosing. I did as much research as I could upfront, but 
> >>>>> have
> >>>>> run into
> >>>>> this obstacle.
> >>>>>
> >>>>> I?ll be content to run 14.0-CURRENT because I can still create 
> >>>>> 13.1
> >>>>> jails.
> >>
> >> How about logging in from remote and load kernel module?
> >> This is my example.
> >> https://github.com/freebsd/drm-kmod/issues/159
> >
> > When I do that, the screen still goes black, but kldload does return 
> > in my remote terminal. This is in /var/log/messages: 
> > https://gist.github.com/patmaddox/1a2b7bb8769cf1251beb514a9646a69e
> 
> Well, I don?t know if this has anything to do with anything, but when 
> I run `pkg install drm-kmod` it lists all of these intel bits:
> 
> 	gpu-firmware-intel-kmod-broxton: 20220511
> 	gpu-firmware-intel-kmod-coffeelake: 20220511
> 	gpu-firmware-intel-kmod-elkhartlake: 20220511
> 	gpu-firmware-intel-kmod-geminilake: 20220511
> 	gpu-firmware-intel-kmod-icelake: 20220511
> 	gpu-firmware-intel-kmod-kabylake: 20220511
> 	gpu-firmware-intel-kmod-rocketlake: 20220511
> 	gpu-firmware-intel-kmod-skylake: 20220511
> 	gpu-firmware-intel-kmod-tigerlake: 20220511
> 
> My 10th gen i9 is a ?comet lake? - not in the list. I?m not sure 
> if it should be covered by a different one, but it is interesting that 
> it?s absent.

 It's because Comet Lake uses the same GPU as the previous generation
so you need to install gpu-firmware-intel-kmod-kabylake as noted in :
Dec  5 22:14:30 beastie14 kernel: drmn0: could not load firmware image
'i915/kbl_dmc_ver1_04.bin'
      ^^^

> drm-kmod has a bunch of references to cometlake: 
> https://github.com/freebsd/drm-kmod/search?q=cometlake
> 
> But drm-kmod-firmware does not: 
> https://github.com/freebsd/drm-kmod-firmware/search?q=cometlake
> 
> I did make an effort to support a cometlake flavor: 
> https://github.com/patmaddox/drm-kmod-firmware/commit/20570f61ee927e19d5fd6303f94eac00aa2f3bfd
> 
> But it didn?t work, which is no surprise, because I have no idea what 
> I?m doing when it comes to kernel drivers.
> 
> Does the fact that cometlake is absent from the list mean 1) it was an 
> oversight 2) it?s not supported 3) nothing at all?
> 
> Pat
> 


-- 
Emmanuel Vadot <manu@bidouilliste.com> <manu@freebsd.org>