Re: GOP and using monitor

[Riza Dindir <riza.dindir%gmail.com@localhost>]

Hello RVP,

On Wed, Oct 6, 2021 at 10:33 AM RVP <rvp%sdf.org@localhost> wrote:
>
> On Tue, 5 Oct 2021, Riza Dindir wrote:
>
> > [Tue Oct  5 18:26:58 UTC 2021] genfb0 at pci0 dev 1 function 0: vendor 1002 product 1309 (rev. 0x00)
> > [Tue Oct  5 18:26:58 UTC 2021] genfb0: framebuffer at 0xe0000000, size 1366x768, depth 32, stride 5632
> > [Tue Oct  5 18:26:58 UTC 2021] genfb0: shadow framebuffer enabled, size 4224 KB
> > [Tue Oct  5 18:26:58 UTC 2021] wsdisplay0 at genfb0 kbdmux 1: console (default, vt100 emulation), using wskbd0
> > [Tue Oct  5 18:26:58 UTC 2021] drm at genfb0 not configured
> > [Tue Oct  5 18:26:58 UTC 2021] genfb1 at pci1 dev 0 function 0: vendor 1002 product 6604 (rev. 0x00)
> > [Tue Oct  5 18:26:58 UTC 2021] genfb1 at pci0 dev 1 function 0: vendor 1002 product 1309 (rev. 0x00)
> > [Tue Oct  5 18:26:58 UTC 2021] genfb1: framebuffer at 0xe0000000, size 1366x768, depth 32, stride 5632
> > [Tue Oct  5 18:26:58 UTC 2021] genfb1: shadow framebuffer enabled, size 4224 KB
> > [Tue Oct  5 18:26:58 UTC 2021] wsdisplay0 at genfb1 kbdmux 1: console (default, vt100 emulation), using wskbd0
> > [Tue Oct  5 18:26:58 UTC 2021] drm at genfb1 not configured
> > [Tue Oct  5 18:26:58 UTC 2021] genfb0 at pci1 dev 0 function 0: vendor 1002 product 6604 (rev. 0x00)
> >
>
> This is a mess: looks like both genfb0 and genfb1 have attached to
> pci0 dev 1 function 0: vendor 1002 product 1309.
>
> Put back the original GENERIC config file, then compile a new kernel
> with this patch:
>
> ---START PATCH---
> --- sys/dev/pci/genfb_pci.c.orig        2016-07-07 06:55:41.000000000 +0000
> +++ sys/dev/pci/genfb_pci.c     2021-10-06 07:07:49.948384764 +0000
> @@ -83,6 +83,11 @@
>         if (genfb_is_console())
>                 matchlvl = 5;   /* beat VGA */
>
> +       /* XXX: HACK */
> +       if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ATI &&
> +           PCI_PRODUCT(pa->pa_id) == 0x1309)
> +               return 0;       /* skip AMD/ATI Kaveri [Radeon R6/R7 Graphics]
> +
>         if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE &&
>             PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_CONTROL)
>                 return matchlvl;
> ---END PATCH---
>
> You should, hopefully, get output on the external monitor _if_ that
> VGA connector is attached to the other ATI card.

I will try this hack on genfb_pci.c. But I am still not sure why the
configuration change did not work. Will try that change again, first.

>
> -RVP

Regards,
Riza