[Nouveau] Request for help in adding a HDMI output

[o1bigtenor]

On Sat, Jan 23, 2021 at 9:45 PM o1bigtenor <o1bigtenor at gmail.com> wrote:
>
> On Sat, Jan 23, 2021 at 6:43 PM Roy Spliet <nouveau at spliet.org> wrote:
> >
snip
> Hmmmmmmmm - - - - have found a pile of documents where EDID is shown
> to be a very error prone 'standard'. The model year listed is only one of those
> the companies documents indicate that the model was sold starting in 2019 and
> that there are 3 HDMI 2.0b inputs.
>
> It gets far more interesting!
> I have 2 graphics cards:
> card0 is an Nvidia 1050 Ti, card 1 is an Nvidia 570
> there is only one HDMI port between the two cards (on card0) yet it is the HDMI
> interface on card 1 that has the EDID information and reads as the port is
> enabled. (Absolutely cannot enable the HDMI port on card0!!)
> In my Xorg.0.log files I find a modeline that reads like:
> [    40.740] (II) modeset(G0): Supported detailed timing:
> [    40.740] (II) modeset(G0): clock: 297.0 MHz   Image Size:  1872 x 1053 mm
> [    40.740] (II) modeset(G0): h_active: 3840  h_sync: 4016
> h_sync_end 4104 h_blank_end 4400 h_border: 0
> [    40.740] (II) modeset(G0): v_active: 2160  v_sync: 2168
> v_sync_end 2178 v_blanking: 2250 v_border: 0
>
> which is somewhat similar to:
>
> Preferred Video Timing if only Block 0 is parsed:
>   DTD   1:  3840x2160   30.000 Hz  16:9    67.500 kHz 297.000 MHz
> (1872 mm x 1053 mm)
>                  Hfront  176 Hsync  88 Hback 296 Hpol P
>                  Vfront    8 Vsync  10 Vback  72 Vpol P
>
> ----------------
>
> Native Video Timing if only Block 0 is parsed:
>   DTD   1:  3840x2160   30.000 Hz  16:9    67.500 kHz 297.000 MHz
> (1872 mm x 1053 mm)
>                  Hfront  176 Hsync  88 Hback 296 Hpol P
>                  Vfront    8 Vsync  10 Vback  72 Vpol P
>
> ----------------
>
> Preferred Video Timings if Block 0 and CTA-861 Blocks are parsed:
>   DTD   1:  3840x2160   30.000 Hz  16:9    67.500 kHz 297.000 MHz
> (1872 mm x 1053 mm)
>                  Hfront  176 Hsync  88 Hback 296 Hpol P
>                  Vfront    8 Vsync  10 Vback  72 Vpol P
>   VIC  95:  3840x2160   30.000 Hz  16:9    67.500 kHz 297.000 MHz
>                  Hfront  176 Hsync  88 Hback 296 Hpol P
>                  Vfront    8 Vsync  10 Vback  72 Vpol P
>
> ----------------
>
> Native Video Timing if Block 0 and CTA-861 Blocks are parsed:
>   DTD   1:  3840x2160   30.000 Hz  16:9    67.500 kHz 297.000 MHz
> (1872 mm x 1053 mm)
>                  Hfront  176 Hsync  88 Hback 296 Hpol P
>                  Vfront    8 Vsync  10 Vback  72 Vpol P
>
> which is was the hex dump written for HDMI-1-2 (listed as on the card that
> has no HDMI ports) as the EDID.
>
Doing some more research and found this:
https://www.kernel.org/doc/html/v5.6/driver-api/edid.html

that with the two attachments

is there any way of getting an 'accurate' EDID so that I could 'install' it and
with that effect the use of my 3840x2160 'monitor'?

TIA
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 20210123_var_log_Xorg_0_log_files_for_HiSense_monitor
Type: application/octet-stream
Size: 18999 bytes
Desc: not available
URL: <https://lists.freedesktop.org/archives/nouveau/attachments/20210124/a6875d98/attachment-0002.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: EDID_for_HDMI-1
Type: application/octet-stream
Size: 8841 bytes
Desc: not available
URL: <https://lists.freedesktop.org/archives/nouveau/attachments/20210124/a6875d98/attachment-0003.obj>