mking@lll-crg.llnl.gov (Marianne King) (01/30/91)
I have a DecStation 3100/Ultrix with the standard DEC 15 inch color monitor. I am having a problem with screen flicker. A DEC technician looked at my machine and told me that according to the diagnostics that the monitor is functioning properly and that the flicker does not occur where they ran the tests. They told me there must be something around my office which is causing the problem. However, that answer does not help me much. I have heard several theories about this problem including that the DEC color monitors just do not work very well and that they have a problem with an adequate refresh rate. Has anybody had this problem? If so, please let me know. Thanks in advance. Marianne E. King Lawrence Livermore National Laboratory mking@lll-crg.llnl.gov (415) 423-4116
mike@raven.uss.tek.com (Mike Ewan) (01/31/91)
In article <90383@lll-winken.LLNL.GOV>, mking@lll-crg.llnl.gov (Marianne King) writes: [stuff deleted] |> I have heard several theories about this problem including that the DEC |> color monitors just do not work very well and that they have a problem |> with an adequate refresh rate. |> |> Has anybody had this problem? If so, please let me know. I've seen this also. I think it has to do with an intersection of the refresh rate and the 60Hz flicker in flourescent lighting. I found the thing to be unusable except under incandescent lighting or darkness. Mike -- Michael Ewan (503)627-6468 Internet: mike@raven.USS.TEK.COM Unix Systems Support UUCP: ...!uunet!raven.uss.tek.com!mike Tektronix, Inc. Compuserve: 73747,2304 "Fig Newton: The force required to accelerate a fig 39.37 inches/sec."--J. Hart
bbraden@mesrx.UUCP (Bill Braden) (01/31/91)
In article <90383@lll-winken.LLNL.GOV> mking@lll-crg.llnl.gov (Marianne King) writes: > >I am having a problem with screen flicker.... > >Has anybody had this problem? If so, please let me know. > We had this exact problem on a black and white monitor (VR260) some time back and it was being caused by a PC clone that was sitting too close to the monitor. The affected user rearranged his desk moveing the PC further away and the problem went away. It is still not clear weather the cause was the PCs CPU or its monitor but I would suspect the monitor. Bill Braden !uunet!mesrx!bbraden "Onward Through the Fog"