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This value sets the number of colors that the card is currently configured to display in bits per pixel (bpp). Valid values are 08h (8 bpp, or 256 colors); 0Fh (15 bpp, or 32 K colors), 10h (16bpp, or 64 K colors), 18h (24 bpp, or 16,777,216 colors), and 20h (32bpp, or true color).
II-35 The next two settings determine the resolution (in pixels) of your desktop area, which includes your entire Windows workspace.
Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\MGACtrl\PowerDesk\ CurrentSettings |
Value Name: | Mga.DesktopX |
Data Type: | REG_DWORD |
Value: | 0x400 |
II-36 | Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\MGACtrl\PowerDesk\ CurrentSettings | |
Value Name: | Mga.DesktopY | |
Data Type: | REG_DWORD | |
Value: | 0x300 |
Your Windows workspace consists of everything you see on-screen and in the off-screen area when youre using a virtual desktop. (You use a virtual desktop, or viewport, when your desktop area is larger than your display area.)
II-37 These two settings govern the resolution (in pixels) of your display area.
Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\MGACtrl\PowerDesk\ CurrentSettings |
Value Name: | Mga.DesktopX |
Data Type: | REG_DWORD |
Value: | 0x400 |
II-38 | Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\MGACtrl\PowerDesk\ CurrentSettings | |
Value Name: | Mga.DesktopY | |
Data Type: | REG_DWORD | |
Value: | 0x300 |
Your display area is your on-screen workspace, or the actual resolution that the video card sets your monitor to. Generally, these settings are set to the same values as your Desktop settings, though these values can be set smaller than the desktop values to create a viewport into your desktop.
II-39 Sometimes when running NT 4.0, you get frequent Event Viewer messages specifying an ATAPI source error, Event #9: The device \device\scsiport0 did not respond within the timeout period. You can tell Windows NT to stop polling the CD-ROM for disk changes by changing the following registry entry.
Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\CdRom |
Value Name: | Autorun |
Data Type: | REG_DWORD |
Value: | 0 |
II-40 You recently decided to add a SCSI CD-ROM to your system, and you add a 1522 just for the CD-ROM. You boot NT and it hangs after trying to boot from the 1522. How can you dictate the boot process? This registry entry does the trick.
Hive: | HKEY_LOCAL_MACHINE |
Key: | System\CurrentControlSet\Services\ SCSI_CONTROLLER_NAME |
Value Name: | Tag |
Data Type: | REG_DWORD |
Value: |
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