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1997-02-21
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OSVIDSRR - DEFAULT MONITOR REFRESH RATE IS TOO HIGH FOR MONITOR
09/24/96
=======================================================================
Default Monitor Refresh Rate is Too High for Monitor
=======================================================================
Please Read Entire Document for Full Explanation of Procedures
--------------------------------------------------------------
DESCRIPTION
Environment: Monitor requiring 60 Hz refresh (for 640x480x16 or 256)
Diamond Stealth PRO S386C98 (may occur with other video
adapters)
Installing OS/2 Warp 4 with Diamond Stealth Pro video drivers and
selecting 640x480 (x16 or x256) resolution sets the monitor refresh
rate too high for a monitor which requires a 60 Hz refresh rate.
The result is distortion on the monitor;
either the viewable area on the screen is very small, the screen
flickers, or the entire screen is unreadable.
RESOLUTION
These problems are resolved by the utilities shipped with either the
monitor or with the video adapter. In the case of the Diamond Stealth
PRO S386C98, use the STLMODE.EXE utility shipped with the adapter,
as follows:
1. Insert the Diamond Setup Program Diskette in drive A:. From a DOS
Full Screen session, change to the A: drive and type STLMODE, then
press Enter.
2. Select the Custom Monitor setting and display centering for the
640x480x256 mode.
3. Press Esc to exit out of the program.
This leaves the monitor with the correct refresh rate, even after
subsequent system restarts.
Note: Reinstalling the video driver (S3 801,805,928) using 'default
settings for monitor' rather than using 'display adapter utility'
program has no effect on the problem.
Running 'SVGA ON' at any time causes the monitor refresh rates
of the current desktop session to be corrupted.
warp4
______________________________________________________________________
IBM disclaims all warranties, whether express or implied, including
without limitation, warranties of fitness and merchantability with
respect to the information in this document. By furnishing this
document, IBM grants no licenses to any related patents or copyrights.
Copyright (c) 1994, 1995 IBM Corporation. Any trademarks and product
or brand names referenced in this document are the property of their
respective owners. Consult your product manuals for complete trademark
information.