3.266 bytes |
Service Hints & Tips |
Document ID: CPES-38HJPP |
IBM PC - Fails to display grey shades with 4707 attached
Applicable to: World-Wide
Symptom:
IBM PC 300 & 700 Series systems may fail to correctly display shades of gray with an IBM 4707 Monochrome Display attached.
The IBM 4707 also does not correctly display dark shades on a black background in OS/2 windowed mode. The colors appear to be black on black.
Problem Isolation Aids:
Missing shades of gray may be reported as corrupted video images, or as no image at all.
The OS/2 symptom does not occur in an OS/2-DOS window or in OS/2 full screen mode.
Fix:
Step #1 Fix:
Power the system unit on prior to powering on the IBM 4707 Monochrome display. Allow at least a 5 second interval between powering on the system and powering on the display.
If the PC 300 and the IBM 4707 Display are powered on at the same time, the system sets the video mode for VGA rather than monochrome.
Step #2 Fix (OS/2):
If dark colors appear as black on black when viewed in an OS/2 windowed environment, either select full screen mode or change to a lighter foreground shade. OS/2 support is investigating
the cause of this problem and will incorporate a resolution into future products and product fix packs.
If the error persists, continue normal problem determination procedures.
SAS KEYWORDS:
PSY2 D/T65XX 65XX 6571
IBMPC PSVP PSVPDISP PSY2DISP
D/T6571 6573 D/T6573 D/T6581
PC 350 PC330 PC300 PC 330
PC350 D/T6583 6583 6581
D/T6576 D/T6577 D/T6586 D/T6587
D/T6875 D/T6885 D/T6876 D/T6877
D/T6886 D/T6887 D/T6598 D/T6560
D/T6575 D/T6585
Search Keywords |
| |
Hint Category |
Display/Monitor, Retain, OS/2 | |
Date Created |
23-11-95 | |
Last Updated |
17-04-98 | |
Revision Date |
13-04-99 | |
Brand |
IBM PC | |
Product Family |
PC 330, PC 340, PC 350, PC 360, PC 730, PC 750 | |
Machine Type |
6560, 6571, 6573, 6575, 6577, 6581, 6586, 6587, 6598, 6877, 6886, 6050 | |
Model |
Various | |
TypeModel |
| |
Retain Tip (if applicable) |
H131438 | |
Reverse Doclinks |