Question

lcd screen "input not supported"

Asked by: kurgbe

I have a LCD monitor Acer AL1722.

It is connected to two PC :

1) Windows 2000 with a video card with a DVI connection to the monitor
2) Windows XP with an anolog  RGB connection to the monitor.

When I start the Windows 2000 PC, I always get the following monitor message "input not supported". Not a big deal except sometimes the image stays displayed only a few seconds, then dispearing and leaving a blank screen. Then it reappears for a few seconds, and so on.

With the analog connection I don't have any problem.

How can solve this problem?

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Asked On
2005-12-23 at 12:28:30ID21674577
Tags

input

,

supported

,

acer

Topic

General Computer Systems

Participating Experts
2
Points
500
Comments
4

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Answers

 

by: ridPosted on 2005-12-23 at 14:36:57ID: 15544925

Has it been like this since you began using it with 2 PCs connected?
Is the screen supposed to work with sources connected to both inputs?
Did you try disconnecting the inactive (RGB) connection and see what happens?
/RID

 

by: burrcmPosted on 2005-12-23 at 20:38:41ID: 15545899

The refresh rate is set too high. Reduce it to 60 and it will work.

Chris B

 

by: kurgbePosted on 2005-12-24 at 05:03:12ID: 15546671

thanks for the feedback.

1) The refresh frequency as stated by Windows 2000 is 60 Hz
(Menu: Monitor > Monitor Settings > Refresh  Frequency )

2) The graphic card is an ASUS RADEON 9600XP

3) Cable of both monitors are connected permanently. Ususally only one PC is on.

4) This morning I started with the analog RGB PC: no problem. After a few hours started my Windows 2000 PC, changed the input source in the Monitor settings menu (as usual). But I did not get the "input not supported" message and the display is OK. I can switch from the digital input to the analog input without any problem (both PC are turn on).

I will try to find out the exact sequence of actions that causes the problem.

 

by: kurgbePosted on 2006-01-11 at 08:06:56ID: 15671700

Strangly, setting the refresh rate from 60Hz to 70Hz solved the problem. (The AL1722 can accept up to 75Hz).

20120131-EE-VQP-002

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