1/5/2024 0 Comments Transient multimon manager![]() This document contains instructions for editing the registry. Please carefully read the following warning: Warning! So how do I fix the multiple monitor fiasco and reset the multiple monitor profiles? BTW, it’s also the component that’s to blame for the 2 second delay in the boot time, when the screen suddenly goes blank on you. So, who’s responsible for the multiple monitor deal in Vista? Transient Multimon Manager (TMM), which is a feature targeted at improving the user experience of connecting and disconnecting displays, particularly for the mobile user. For example, you might get one behavior when you hibernate the laptop, another when you shut it down, a third one when you put it to sleep, and no consistency! You could blame it on the driver and in some cases you’ll actually be right, but in most cases, you can update the video driver as much as you want, and Vista will continue to do what it wants. However, Vista doesn’t always do what it was designed to do. The following figure shows the flow of operations that occur when TMM handles the situation when a monitor is added to make a two-monitor configuration.In Windows Vista, the operating system was designed in such a way that whenever you plug in an external monitor to your computer (naturally, this is mostly done in laptop computers), Vista is supposed to remember your setup and it is then supposed to replicate it each time you plug that monitor in again. For more information about ChangeDisplaySettingsEx, see the Microsoft Windows SDK documentation. Next, TMM uses the ChangeDisplaySettingsEx function to extend the display. SetActiveTopology turns off the second target and enters single view. In this situation, SetActiveTopology interprets targetArray as an array with one element. In the preceding SetActiveTopology call, parameter three is set to 1 and not 2. TMM calls the IViewHelper::SetActiveTopology(adapterName, CloneSource, 1, targetArray) method with the indicated parameters. If the computer enters clone view and the user chooses extended view from the TMM dialog (and clicks OK or Apply), TMM must turn off clone view as follows: If an error result is returned from any of the IViewHelper methods, the computer does not enter clone view, and the TMM dialog pops up with clone-view and external-only options disabled. TMM calls the IViewHelper::Commit method. TMM calls the IViewHelper::SetActiveTopology(adapterName, CloneSource, 2, targetArray) method with the indicated parameters. TMM places the existing target identifier as the first element and the second target identifier as the second element. ![]() This source identifier is called "CloneSource." If the adapter has two targets, TMM creates an array of two entries (ULONG targetArray). ![]() TMM finds the graphics adapter that has a source that is mapped to a target. Each target must be connected but is not required to be active.įor each source in the graphics adapter, TMM makes calls to the IViewHelper::GetActiveTopology method to retrieve the active targets for the source. TMM makes calls to the IViewHelper::GetConnectedIDs method to retrieve all of the targets on the adapter, whether the targets are mapped or not. If the display configuration has one or two monitors with Extended Display Information Data ( EDID) that TMM has not encountered before, TMM proceeds to bring up the TMM dialog.įor each adapter in the display configuration, TMM makes calls to the IViewHelper::GetConnectedIDs method to retrieve all of the sources on the adapter whether the sources are mapped or not. TMM compares display configuration against the previously recorded display configurations. For more information about EnumDisplayDevices, see the Microsoft Windows SDK documentation. TMM calls the EnumDisplayDevices function to retrieve the current display configuration, which includes adapters, displays, and monitors. ![]() The following sequence shows the order in which TMM calls the IViewHelper methods and performs other operations in this situation: In this situation, the TMM dialog will not have the option for clone or extended. If the targets are on different graphics adapters, the TMM dialog will pop up without activating the second monitor. After TMM performs the mapping, the TMM dialog will pop up. If two targets are part of the same graphics adapter, TMM will map the one source that is currently mapped to one of the targets to both targets. A two-monitor configuration generates the Transient Multi-monitor Manager (TMM) dialog.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |