Clevertouch Plus 65" major sync problems with PCs

[toffee_paul]

Hi,

 

We've been experiencing lots of issues in the school with the majority of our Clevertouch Plus 65" models and the PCs they are connected to via HDMI.

 

Teachers are regularly complaining of the Clevertouch screens not mirroring the displays and being either blank or saying "NO SIGNAL".

 

 

All PCs are the same model, Lenovo M800Z All-In-One, fully updated.

 

The PCs are configured with power settings as follows:

 

Turn off Hard Disk: Never

Sleep: After 60 minutes

[TABLE=class: subtable3]

[TR]

[TD]Turn off display after: After 30 minutes[/TD]

[TD][/TD]

[/TR]

[/TABLE]

Allow hybrid sleep: On

Hibernate after: Never

 

 

I'm starting to pull my hair out over this! Occasionally, I can get the picture back by switching the cable on the Clevertouch from HDMI1 to HDMI2. Returning it to HDMI1 fails to bring the picture back.

 

Surely the Turn the Display off option can't be causing this?

 

 

Any help much appreciated.

 

Paul

[Clevertouch_Rob]

Hi Paul, i will show our Technical Manager this thread.

[simonw]

I've had similar issues, I have no hair left...

[toffee_paul]

Simon, did your issues get resolved or are they still on-going?

[simonw]

Still on going. I have two boards, one teacher can open SMART Notebook and write on the file and save the annotation, the other teacher cannot do this, getting no touch at all. I've disconnecting and reconnecting all leads, but no joy.

 

Did you get a resolution for your issue?

[toffee_paul]

No, touch capability is fine on all our Clevertouch screens, its the fact they keep losing the PC signal that's causing us grief.

 

No resolution yet, still awating contact from Clevertouch's Technical Manager.

 

Paul

[Clevertouch_Jon]

Hi Paul,

 

Sorry to hear that you are having signal drop outs whilst connecting to the Clevertouch, on another thread we have seen an issue when switching channels that the signal does not always like switching back to a PC source.

 

I am running a HP Probook 650 G3 and have not had this issue but clearly you are having a pretty severe problem in your environment.

 

Can you give me answers to the following questions please? : -

 

How many Clevertouch do you have?

Please supply one of the Clevertouch serial numbers.

What verson and build number is the Clevertouch running? (this can be checked by going to Settings-->About device)

What is the make and model of laptops used?

Are the laptops video drivers all up to date?

Are the HDMI cables standard/the cables that came with the Clevertouch?

 

BR

 

Jon

Edited September 22, 2016 by Clevertouch_Jon

[gbiltd]

Hi

We have experienced HDMI issues when installing various touchscreens. A relatively inexpensive HDMI booster (approx £14) has solved all issues

[kamylka13]

I created an account just to post this - I was experiencing similar issues and a better quality HDMI cable has resolved the issue!