Windows 7 resetting extended desktop at login screen

[gerardsweeney]

Kind of banging my head against a wall here.

 

Our schools got new ActivPanels installed a couple of weeks back, and Windows 7 keeps resetting the monitor.

 

It SHOULD BE

 

Primary = VGA (the monitor)

Secondary = DP (the ActivPanel)

And then Windows P to set it to duplicate (because some of the teachers don't like extended desktop)

 

I've logged in as Admin

I've set the monitors up as above.

As soon as I log out, it pops back to

 

Extended

Primary = DP

Secondary =Monitor

 

In other words, all they see on the monitor is a black screen because the primary is showing the login screen.

 

Has anyone come across this?

[DangPro]

It could be the computer is not picking up the EDID info and that would be related to the VGA cables. For testing purposes I would get a short VGA cable and test to see if it still happens.

[gerardsweeney]

Thanks for the suggestion.

 

The monitors are attached with a 2m VGA cable, which is about as short as it can go.

I'll try swapping one over with a different one (like one of the 10 billion new ones that arrived with monitors connected with DP cables) - can't hurt to try!

 

Cheers,

Gerard

[jon_nais]

Hi,

We had this issue when we first got our V5 panels, check that the firmware on the panel is up to date, I think you will need version 1.0.0.6 or something like that.(cant remember exactly and not near a panel at the moment, though it definitely ends in a 6)

Jonathan.

[markiof]

The firmware versions vary depending on the size of the ActivPanel. The best thing to do it to contact Promethean Support as they can advise what the latest version is (and send you the file and installation instructions if needed)

[jon_nais]

The firmware versions vary depending on the size of the ActivPanel. The best thing to do it to contact Promethean Support as they can advise what the latest version is (and send you the file and installation instructions if needed)

 

apologies yes, we have 75" 4K screens here, but the issue itself was caused by the firmware, though it did take some arguing from our side for them to admit there was a fault.

[gerardsweeney]

Thanks very much, folks.

One of our schools had the same boards installed by a different supplier. They work fine.

All of the ones supplied by the current supplier don't.

I noted the firmware version ended in 5, and asked my colleague to check that against the working ones - they were running with a later version.

So thanks for confirming my suspicions. The supplier are now getting shouted at to come out and sort the firmware. Yes, WE could fix it but the polythene is barely off them