EliteBook 8460p and external monitor/projector does not work

We have several 8460 with the same question.

They work fine until you try to connect to an external monitor/TV/projector and then the trouble begins.

When you use Fn + F4 to establish a dual monitor output the external monitor and integrated display switches between the two, as if the PC cannot determine the display to use. On rare occasions, it works but it is not reliable. I ve it first met on a fair and when I tried it before the session, it worked fine. During the session it just started this behavior. I took it out and replaced the graphics drivers, BIOS and made sure that the resolution was not the issue. It worked fine and I returned it to the room of the lesson and he did it again.

I started to believe that the projector was the wrong part here, so I didn't want to use the PC again on this fair, but no other computer shows no signs of distress.

Since then, it was at the beginning of this spring, I ve seen and experienced the same problem with several computers of the same type and with different monitor and they all behave in the same way.

I have spent some time now and searched the web but found nothing I ve doesn't explain anything around it and so far no update driver, and no other updates (including a full installation) has solved this problem.

There are the HP Elitebook 8460p with AMD graphics card in the computer.

There is no any other indication that something isn't going to the newspaper or whatever it is.

Any suggestion of what may be the cause of this is useful.

Hello and thanks for the reply.

The original problem is old, from 2012, in fact and more or less no longer applies. Some of the more troublesome computers has been replaced with other models at the time and the 8460 p is used more or less entirely users who do not have the need for external screens.

Have not seen it since a long time but we've updated the BIOS and drivers a couple of times so the current status is in fact "stable".

Thus, we can say that the problem is not more, but whatever solved the problem is unknown.

Tags: Notebooks

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