Monitor connected to onboard DisplayPort connector through DisplayPort to VGA Monitor Cable may not have video when resuming from standby mode (S3)
When the customer uses dual display by connecting one monitor to the onboard DisplayPort output through the to Lenovo DisplayPort to VGA Monitor Cable (Option P/N: 57Y4393, FRU P/N: 57Y4141 or 45J9524, Manufacturing P/N: 57Y4140) and connecting another monitor to the onboard VGA output, the DisplayPort output may not have video after waking from standby mode (S3).
The above symptom may occur on the following systems, but not limited to the following:
All ThinkCentre M58
All ThinkCentre M58p
Applies to following operating systems:
Microsoft Windows Vista
Microsoft Windows XP Professional
Microsoft Windows XP Home Edition
When the onboard DisplayPort output has no video, press Ctrl+Alt+F12 to enter the Intel display driver settings and enable dual display mode output to both monitors.
For more information on DisplayPort monitor cables, go to: www.lenovo.com/support/monitoraccessories