3 DisplayPort (DP 1.2) - Cannot activate more than two monitors - third monitor goes into power saving mode, even after switching cables around.

[GFrin]

- Windows Display Settings shows 3 monitors but will not (grey-out) allow Extended Desktop to third monitor. Third monitor shows as reduced size and will not leave power saving mode.

- Intel HD Graphics Control Center shows only "Display and Display2" for Dell U2412M Displays, although monitor connected to 3rd DisplayPort

- Platform: HP Z230 SFF, 8GB, Windows 7, i5-4570 Processor, onboard HD 4600 3 DisplayPort Graphics, HD Driver 10.18.14.4170

Would appreciate any assistance in making 3rd DisplayPort usable.

[Kevin_M_Intel]

Please try updating the drivers to the latest version. Here you have the download link:

https://downloadcenter.intel.com/download/25143/Intel-Iris-Iris-Pro-and-HD-Graphics-Driver-for-Windows-7-8-8-1-64-bit https://downloadcenter.intel.com/download/25143/Intel-Iris-Iris-Pro-and-HD-Graphics-Driver-for-Windows-7-8-8-1-64-bit

If you find problems during the installation try these steps:

/docs/DOC-22542 https://communities.intel.com/docs/DOC-22542

It is also important to use straight connections and as much as possible do not use video adapters or convertors.

Kevin m

[GFrin]

/message/321709# 321709 2. /message/321709# 321709 Re: 3 DisplayPort (DP 1.2) - Cannot activate more than two monitors - third monitor goes into power saving mode, even after switching cables around.

Updated with latest firmware to no avail. HD Graphics Control Panel does not allow extended desktop across three screens.t. As you can see below, it recognizes all three individually but only allows two to be Extended Desktop. Is there an updated Control Panel available?

[GFrin]

Updated with latest firmware to no avail. HD Graphics Control Panel does not allow extended desktop across three screens.t. As you can see below, it recognizes all three individually but only allows two to be Extended Desktop. Is there an updated Control Panel available?