03-07-2016 04:24 AM - edited 03-08-2016 07:38 AM
Issue: Whever the system is booted/rebooted after POST, while transfering control to OS, the system goes into a pause/halt (keyboard and mouse doesn't responds)
Workaround: As soon as one of the monitors is turned off, seems control passes to Windows 7 ("Loading windows" on black screen shows up) and boots normally, now the monitor can be turned on and dual display works as usual
Additional info: While the system is paused, if the NUM/CAPS/SCROLL lock is pressed in a particular sequence (even though the lights actually don't respond), it looks like the key-press sequence gets stored in buffer. This is verfied once one of the monitor is turned off, the same keypress pattern lights up on the keyboard
Setup: z240 with 2x23" monitor connected to Display-ports, HP smartcard keyboard and mouse connected to rear USB.
BIOS version 1.11 (SP74759)
Has anyone experianced similar issue or anyone has a fix for this?
09-08-2016 03:05 AM - edited 09-12-2016 09:12 AM
New Z240 workstation with Xeon E3-1245 v5 and two monitors HP Z24n, both attached on the motherboard's DisplayPorts.
OS: Windows 7 Enterprise x64 Sp1 with latest patches and drivers (including monitors' one), BIOS (01.24)
I found two workarounds: power down and restart, or briefly attach another DVI monitor.
I will try your trick to power off a monitor.
P.S. Initially I had the same problem using two Samsung LS22A350N monitors and HP DisplayPort->VGA (D-Sub) adapters. I thought it was a problem with the signal conversion and changed monitors.