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Document ID: RMIE-38WC8W |
IBM PC340 - Video corruption in Windows 3.11
Applicable to: World-Wide
Symptom :
IBM PC 340 Series 6560 systems preloaded with Microsoft Windows 3.11 may exhibit video corruption when viewing text files such as the Windows Readme File or when opening and closing windows.
Problem Isolation Aids :
The corruption occurs if the video resolution of the Windows Cirrus video drivers is set for 1152 x 864 HC (64) @ 75Hz or 640 x 480 x TC (24bit or 16M colors) @ 85Hz. The video corruption of text files viewed in Windows will consist of unreadable characters and blinking lines.
The video corruption when opening or closing windows will display as a double shadow of the window off to the right side of the primary image.
Fix :
To eliminate this failure, choose a different resolution other than the two listed above or set the video resolution of the Windows Cirrus video drivers to a resolution with a maximum refresh rate of 75Hz at any color depth.
A Flash BIOS update for the PC 340 6560 has been developed to eliminate the failure from occurring in either of the resolutions listed above.
To obtain a copy of this diskette, DoubleClick here :- 
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Hint Category |
DOS/Windows 3.x, Video | |
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Date Created |
26-08-96 | |
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Last Updated |
25-01-99 | |
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Revision Date |
23-04-99 | |
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Brand |
IBM PC | |
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Product Family |
PC 340 | |
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Machine Type |
6560 | |
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Model |
all | |
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