Can't use parameters of DisplaySwitch.exe in Windows 8.

Question

In Windows 7, users can use parameter just like "/clone", "/extend" or "/internal" appending to DisplaySwitch.exe to switch between different presentation modes (duplicate, extend or display only). However, I found that these parameters can't work in Windows 8. If I use them, just only a slide shows on the right and let me select presentation mode, but it can't switch like Windows 7.

Is it a bug of Windows 8? And will it be fixed in the later version or not? Thanks.

Answer 1

I suggest you send your feedback on this issue as we don't know if it will be included in the release build of Windows Developer Preview.

Thank you for posting your feedback, we want to make sure we get the right info including your log files. Can you also submit feedback using the Windows Feedback Tool from the Connect Site associated with your Windows Developer Preview program? If you’re an MSDN subscriber, the information on how to join the Connect program is included on the download page where you installed Windows Developer Preview. There’s a link to the Connect site and an invitation code that you can click on to join using a Windows Live ID account. If you’re not an MSDN subscriber follow this limited use link to join the Connect program and then follow the steps here.

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Thanks,

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Marilyn

Answer 2

I don't think the tool's command line is documented, and undocumented stuff tend to stop working sooner or later. 

Of course, nothing prevents some programmer to write a clone by calling SetDisplayConfig with parameters like SDC_TOPOLOGY_CLONE, SDC_TOPOLOGY_EXTEND, SDC_TOPOLOGY_INTERNAL or SDC_TOPOLOGY_EXTERNAL.

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