Re: Intel graphics

 Eivind, I tried your suggestion to improve 'scfb' resolution with my AMD graphics card and it's like magic. I didn't even have a /boot/loader.conf file, but added one and rebooted and the non-X screen seems much clearer and the X-window now has the resolution I am used to. Thank you. Mike
     On Tuesday, January 3, 2023, 12:30:11 AM PST, Eivind Nicolay Evensen <eivinde@terraplane.org> wrote:  
 
 Den Sun, 1 Jan 2023 22:56:35 +0100
skrev Eivind Nicolay Evensen <eivinde@terraplane.org>:

> Den Sun, 1 Jan 2023 12:48:44 -0800
> skrev Kevin Oberman <rkoberman@gmail.com>:
> 
> > On Sun, Jan 1, 2023 at 7:41 AM Jake Freeland
> > <jake@technologyfriends.net> wrote:
> >  
> > > On Sun, Jan 1, 2023 at 9:28 AM Eivind Nicolay Evensen <    
> > > eivinde@terraplane.org> wrote:    
> > >    
> > >> Hello.
> > >>
> > >> Is is possible to get X running adequately, or even at all
> > >> with this:
> > >>
> > >> vgapci0@pci0:0:2:0:    class=0x030000 rev=0x0c hdr=0x00
> > >> vendor=0x8086 device=0x4692 subvendor=0x1025 subdevice=0x1572
> > >>    vendor    = 'Intel Corporation'
> > >>    device    = 'Alder Lake-S GT1 [UHD Graphics 730]'
> > >>    class      = display
> > >>    subclass  = VGA
> > >>    
> > >
> > > The drm-kmod master branch is updated to match Linux 5.12, as
> > > of right now, I believe. Alder Lake support was introduced in
> > > Linux 5.13/5.14, so unfortunately there is no way to get drm
> > > graphics going on your iGPU yet.
> > >
> > > It looks like work on 5.13 just started on behalf of dumbbell
> > > here:
> > >
> > > https://github.com/freebsd/drm-kmod/pull/224
> > >
> > > If you can compile that branch and install the correct Linux
> > > firmware for UHD Graphics 730, you might be able to get something
> > > going. If you try, definitely report back. I haven't done this
> > > step yet.
> > >
> > > Thanks,
> > > Jake Freeland
> > >    
> > 
> > It was in 5.14, but was not declared stable until 5.16. If you don't
> > ned bells and whistles (or high performance), you can run with scfb.
> > It is working fine for me and has been for a few months.
> > 
> > Hre is my config file (xorg.conf.d/device.conf):
> > 
> > Section "Device"
> > Identifier "Device0"
> > Driver "scfb"
> > Option "NoAccel" "On"
> > EndSection  
> 
> Thanks. I'll have to try that when I'm around the
> machine again, to see if the performance is decent
> enough for now. I'll report back once I've checked.

Indeed, this section was enough to get X to use that driver
and it seems to work and even be usable for now. To see anyhing
more than 800x600, I had to set 

  efi_max_resolution="1920x1080"

in /boot/loader.conf.

Using Darktable, I can see that zooming in and moving the image
is a bit unpleasant, in that updates are more sluggish. Apart
from that, so far this seems to be usable.

Thanks for your help.

-- 
Eivind Nicolay Evensen