Thanks for the information! Here are some assumptions I am making from the information provided-:
Earlier setup-: 2 Monitors ( both Viewsonic VX2035WM) connected through 2 Arkview Viewplex adapters via DVI to HP quad core laptop with Windows 7 64bit. Screen Resolution control panel shows the resolution of both monitors set at their native resolution of 1680x1050. Display on both monitors work fine.
New setup-: 2 Monitors ( both Viewsonic VX2035WM) connected through 2 Plugable UGA-2K-A adapters via DVI to HP quad core laptop with Windows 7 64bit. Windows detects both monitors and Screen Resolution control panel shows the resolution of both monitors set at their native resolution of 1680x1050. Both monitors display a black screen.
Are my assumptions about the setup and the issue correct? If not, could you let me know which part(s) of my assumptions are wrong?
As a sanity test could you confirm that the DVI cable connectors are tightly connected on both the monitor and the Adapter end?
Do the monitors connected through the Plugable UGA-2K-A display any error messages like ‘No Signal’?
Are you seeing the black screen because the monitors have gone to sleep?
What is the current version of DisplayLink drivers installed on the system?
If you reconnect the Arkview Viewplex adapters instead of the Plugable UGA-2K-A do the monitors start displaying anything other than the black screen?
I am also curious as to why you wanted to upgrade to Plugable UGA-2K-A if the Arkview Viewplex was working well at 1680x1050 resolution which is the max resolution that the monitors and Plugable UGA-2K-A will not help in setting higher resolutions since higher resolutions are not supported by the monitors anyway. Were you seeing any issues with the Arkview Viewplex adapters?