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I have two monitors, two ordinary LCD monitors (connected to the machine), brand AOC.
This machine is connected to another host through S-Video. At this time, the display No. 123 can be seen in Windows settings. At this time, if you manually disconnect the display of 3 (connect S-Video), the display connected to S-Video cannot be opened by setting the extended mode of setdisplay
Is there any API that can solve this problem
Hello @Afon.zhang , can this S-Video connected disply be opened via system settings using extended mode?
It's OK to set the extension through windows system, but if you use setdisplayconfig to set the extension, the display with serial number 3 in the system setting is still gray. If you use setdisplayconfig to set the extension for ordinary display, the windows setting will also change. S-Video doesn't work
hi ： sure
Since you mentioned "This machine is connected to another host through S-Video." So I want to confirm whether "this machine" has a S-Video port? If it has, does the display connect directly to this port work for opening by setting the extended mode?
Both machines have S-Video ports
Manually set the windows extension mode to connect normally.
Manually set windows. Set to extend mode, is feasible
Thanks for confirmation. I'll consult the related engineer for helping this issue.
Ok,Thanks!
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@Afon.zhang , The system's Display Settings application also uses the SetDisplayConfig function when modifying the display topology. If it is able to successfully use Display Settings to configure the S-Video connected display, then it should be possible for them to programmatically configure the display. Since this issue is that complex, to resolve this issue as soon as possible, a support case for assistance with this issue is recommended as TTD traces collecting from the system to identify the difference between how their application and Display Settings uses SetDisplayConfig is required. It also will be helpful if can provide the code sample when you open a support case. And you can follow the links below to open a support case:
https://support.serviceshub.microsoft.com/supportforbusiness/create
Okay, I can try it.
Has been resolved, attach the resolution steps