Hi Sylvia, the extended display configurations involving dual displays all work fine:
- Dual display between the 2 HP 2311f monitors (DP and HDMI) - works!
- Dual display between the 1 HP 2311f monitor and the HP w1907 monitor. (DP and DVI) - works!
- Dual display between the 1 HP 2311f monitor and the HP w1907 monitor. (HDMI and DVI) - works!
The only extended display configuration that does not work is the one involving all 3 displays.
Installed processor is an Intel Core i7-4770S. Installed Intel HD Graphics driver version is 10.18.10.3383.
Within the Intel HD Graphics Control Panel, the two HP 2311f displays (DP and HDMI) are seen as "Digital Television". Only the w1907 monitor (DVI) is seen as a "Digital Display". I also do not see display mode choices such as clone and extended within the "Display" tab, so that leaves the Windows 8.1 "Screen Resolution" dialog as the only way to select a display mode for multiple displays.