Added support for Samsung SAM7477, Odyssey Neo G9

[solarkennedy]

Related to
https://github.com/ddccontrol/ddccontrol-db/pull/263/files and
#261

I also have a Neo G9 57" that reports as LS57CG952NNXZA, and the controls look identical to the 7476.

cc @Tatsh

Perhaps I could also contribute more controls to this shared file for this incredible monitor.

[solarkennedy]

If merged, I plan on putting more controls in the 7476 file and leave this as a kind of alias.
I'm assuming that both of our LS57CG952NNXZA monitors have the same controls. Honestly I don't even know how to go about seeing what our actual differences are since they have the exact same model number.

[Tatsh]

So there is a revision to the monitor? Do you also have the weird electric spike sound going off? https://www.reddit.com/r/ultrawidemasterrace/comments/16ykezp/popping_sounds_from_samsung_odyssey_g9/

[solarkennedy]

Hah! No. I've only had this monitor a few days though.

[solarkennedy]

No I see, these are PIP modes.

There is a different PNP ID for each PIP mode.

I can see that DEL426E.xml is some similar prior art:

DEL420A.xml:<monitor name="Dell U4021QW DP PbP/PiP" init="standard">
DEL426E.xml:<monitor name="Dell U3223QE (HDMI PIP)" init="standard">
DEL4271.xml:<monitor name="Dell P3223QE (DP PIP)" init="standard">
DEL4274.xml:<monitor name="Dell P3223QE (USB-C PIP)" init="standard">
DEL427A.xml:<monitor name="Dell U3223QE (HDMI PIP)" init="standard">
DEL427B.xml:<monitor name="Dell P3223QE (DP PIP)" init="standard">
DEL427C.xml:<monitor name="Dell P3223QE (USB-C PIP)" init="standard">

I can do something similar with this monitor and annotate all the sub modes, but make them all include the main file.

[Tatsh]

Are you using the monitor with DisplayPort 2.1 and 240 Hz 7680x2160?

[solarkennedy]

My GPU can only do 60hz, but yes at 7680x2160. I'm pretty sure my 3090 only does DP 1.4.

[Tatsh]

My GPU can only do 60hz, but yes at 7680x2160. I'm pretty sure my 3090 only does DP 1.4.

Yes only the 5000 series finally updates it to 2.1. I have a 4090 doing 120 at 7680x2160.