Intel Iris Query

[Brian Stuart <blstuart%gmail.com@localhost>]

I'm wondering about the state of Intel Iris support.  I've got a Dell
Latitude 7420 with a Tiger Lake i5.  But the i915 driver doesn't seem
to like it.  The lack of acceleration is a little annoying; sometimes
it would be nice if the video were a little smoother and more
performant.  But the big issue is that I can't seem to use any
external video, such as the HDMI port.  This prevents me from using
this machine in the classroom where I need to drive the projectors and
external monitors.

Is this something  that should work, but I'm doing something wrong?
Is this something that's being worked on?  Is this something I should
try to take a swing at myself with my nearly empty jar of round tuits?

I made sure to grab the latest build of 9.99.96 (kernel, modules,
gpufw, xbase, xcomp, xetc, xfont, and xserver) so I wouldn't be asking
about something that's already been fixed.

Thanks in advance,
BLS

P.S.  Here are some relevant lines from dmesg:

[     1.051398] pci0 at mainbus0 bus 0: configuration mode 1
[     1.051398] pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv
ok
[     1.051398] pchb0 at pci0 dev 0 function 0: Intel Tiger Lake (UP3
4Core) Host (rev. 0x01)
[     1.051398] i915drmkms: preliminary hardware support disabled
[     1.051398] genfb0 at pci0 dev 2 function 0: Intel UHD Graphics
(GT2, 96/80 EU) (rev. 0x01)
[     1.051398] genfb0: framebuffer at 0x4000000000, size 1920x1080,
depth 32, stride 7680
[     1.051398] genfb0: shadow framebuffer enabled, size 8100 KB
[     1.051398] wsdisplay0 at genfb0 kbdmux 1: console (default, vt100
emulation), using wskbd0
[     1.051398] wsmux1: connecting to wsdisplay0
[     1.051398] drm at genfb0 not configured

and from Xorg.0.log:

[    17.504] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
        i810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G,
        915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM,
        Pineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33,
        GM45, 4 Series, G45/G43, Q45/Q43, G41, B43
[    17.504] (II) intel: Driver for Intel(R) HD Graphics
[    17.504] (II) intel: Driver for Intel(R) Iris(TM) Graphics
[    17.504] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics
[    17.504] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[    17.504] (II) VESA: driver for VESA chipsets: vesa
[    17.504] (II) wsfb: driver for wsdisplay framebuffer: wsfb
[    17.504] (--) Using wscons driver on /dev/ttyE4 in pcvt
compatibility mode (version 3.32)
[    17.504] (--) using VT number 5
[    17.509] (EE) open /dev/dri/card0: No such file or directory
[    17.509] (WW) Falling back to old probe method for modesetting
[    17.509] (EE) open /dev/dri/card0: No such file or directory
[    17.509] vesa: Ignoring device with a bound kernel driver
[    17.509] (WW) Falling back to old probe method for wsfb
[    17.509] (II) wsfb(2): using default device
[    17.509] (WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
[    17.509] (EE) Screen 0 deleted because of no matching config section.
[    17.509] (II) UnloadModule: "modesetting"
[    17.509] (EE) Screen 0 deleted because of no matching config section.
[    17.509] (II) UnloadModule: "vesa"
[    17.509] (II) fboffset 0
[    17.509] (II) wsfb(0): Creating default Display subsection in Screen section
        "Builtin Default wsfb Screen 0" for depth/fbbpp 24/32
[    17.509] (==) wsfb(0): Depth 24, (==) framebuffer bpp 32