The logon screen is not available after you remove a second monitor when Windows Vista is asleep or in hibernation
The logon screen is not available after you remove a second monitor when Windows Vista is asleep or in hibernation
| Article ID | : | 932339 |
| Last Review | : | September 7, 2007 |
| Revision | : | 2.0 |
SYMPTOMS
Consider the following scenarios:
| • | An additional monitor is connected to a Windows Vista-based desktop computer. The additional monitor is designated as the primary display (the main monitor). The computer goes into hibernation or goes to sleep. This additional monitor is disconnected. The computer resumes from sleep or from hibernation. |
| • | An external monitor is connected to a portable Windows Vista-based computer. The additional monitor is designated as the primary display (the main monitor). The built-in screen is designated as the secondary display. The computer goes into hibernation or goes to sleep. This external monitor is disconnected. The computer resumes from sleep or from hibernation. |
In these scenarios, you cannot see the logon screen. Therefore, you cannot log on to the computer.
Back to the topCAUSE
This issue occurs because the primary monitor is removed from the computer when the operating system is inactive. The logon screen ordinarily appears on the primary monitor. Therefore, the logon screen is not viewable.
RESOLUTION
To resolve this problem, install the hotfix that is described in Microsoft Knowledge Base article 939805. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
939805 (/Feedback.aspx?kbNumber=939805/) The logon screen is not available after you remove a second monitor when Windows Vista is asleep or in hibernation
WORKAROUND
To work around this issue, the following methods in the order that they are presented:
| • | Press CTRL+ALT+DEL, type your password, and then press ENTER. Windows Vista sets the current monitor as the primary monitor, and the display appears. |
| • | If the previous method does not work, type your password, and then press ENTER. Do not press CTRL+ALT+DEL first. Windows Vista sets the current monitor as the primary monitor, and the display appears. |
| • | If the previous methods do not work, reconnect the second monitor, and then log on. Turn off the computer, disconnect the monitor, and then start the computer. Windows Vista sets the current monitor as the primary monitor, and the display appears. |
| • | Use this method if the previous methods do not work and a second monitor is not available. Turn off the computer, and then restart the computer. In some cases, you may have to press and hold the power button for 5 seconds or longer to turn off the computer. Start the computer. Windows Vista sets the current monitor as the primary monitor, and the display appears. |
MORE INFORMATION
We do not recommend that you remove devices from the computer while the computer is asleep or is in hibernation. Instead, remove devices when the computer is off or is in a fully running state.
For more information about how to set up multiple monitors, visit the following Microsoft Web page:
http://windowshelp.microsoft.com/Windows/en-US/Help/90b6964d-2673-40e5-9fdf-6edad3916af31033.mspx (http://windowshelp.microsoft.com/Windows/en-US/Help/90b6964d-2673-40e5-9fdf-6edad3916af31033.mspx)
APPLIES TO
| • | Windows Vista Ultimate |
| • | Windows Vista Starter |
| • | Windows Vista Home Premium |
| • | Windows Vista Home Basic |
| • | Windows Vista Enterprise |
| • | Windows Vista Business 64-bit Edition |
| • | Windows Vista Business |
| • | Windows Vista Ultimate 64-bit Edition |
| • | Windows Vista Home Premium 64-bit Edition |
| • | Windows Vista Home Basic 64-bit Edition |
| • | Windows Vista Enterprise 64-bit Edition |
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