Hi,
when I start my PC the 3rd Monitor (the Philips) is not recognized. This one is connected via VGA to HDMI at the GPU.
The 2nd one (The iiyama) has the resolution from the Philips and shows the Philips' Desktop Picture.
I saved a Profile when everything is ok, but it can not use it. When I click on it nothing happens.

When I disconnect the HDMI cable at the GPU and connect it again:
all Monitors getting a black screen for 1 or 2 seconds and then everything is ok.
The Philips is running and the iiyama has the correct resolution.

The GPU is a Sapphire Ultimate Radeon HD 5670:
http://www.sapphiretech.com/productdetial.asp?Pid=1D250D18-F33E-4C43-B284-6266A7BF28A2&lang=deu

I'm using the latest driver for Win 8.1 Pro 64 Bit,
Radeon Software 16.2.1, Crimson Edition
Driver Package 15.301.1901-160226a-2999

ASUS X99-A II, Intel I7 6800K

I'm running the Ultra Mon Software v3.30
https://www.realtimesoft.com/de/ultramon/overview/

Monitors:
1. Dell U2711 2560x1440 via DisplayPort
2. iiyama ProLite E2472HD 1920x1080 via DVI
3. Philips 200VW 1680x1050 via VGA to HDMI

Any ideas what to do to fix the start problem?

 

it could be because VGA, do you have any other options to connect this monitor?

 

I'd suspect that VGA to HDMI adapter

 

No. It's an old one. Just VGA on the Monitor

 

Do you think that another/better adapter would help?
Or a cable VGA to HDMI?

 

This is the only way to connect the 3 monitors, cause the Philips has only VGA and only the Dell has a DisplayPort

 

I'd try using that adapter with different monitor to see whether it's causing any troubles. Also note that some of these adapters need to be powered to do their job.

 

Thank you.
I will see what I can try.
I read that you need an active (quite expensive) DisplayPort adapter to use all 3 connections of the card.
Or you can use a cable DisplayPort to DisplayPort. That is what i have.

 

Here's better solution -
Use HDMI for iiyama ProLite E2472HD and DVI for Philips 200VW.
If it's DVI-I (which is should be), you can use DVI > VGA adapter, which are readily available and doesn't require any additional active circuit.

 

Thank you very much for your suggestions.
I will see what adapters and cables I have or where I can lend some.
Mostly you exactly don't have what you need )