Satellite P500 & UBUNTU - extern VGA do not work

Hello

I'm running ubuntu for 2011 with my Toshiba Satellite P500 (PSPGSE), it was working fine until a few weeks ago (I think that updated NVidia)

Right now, I'm not able to connect an external video source. I am a math teacher and this is very annoying for my work, because I connect my laptop to a projector. I tested with other VGA cables and other monitors, nothing...

I don't know what is happening now, nvidia control center does not detect an external video source to my P500 and sends no signal.

Anyone has the same problem and solve it?

Is there a tool to verify the integrity of external output?

Could someone help me?
I'm running UBUNTU 12.04.

Kind regards.
Rudolf

Hi Rudolf

It can be tricky and requires manual work in order to find the cause of your problem.

It can be:

(1) related material. If so, you must repair your device. But don't take that as a first choice!

2) caused by an update of the advantageous driver (driver from nVidia and not handled by the community)
In the event that the problem is caused by the pilot-owner, you may be able to restore the previous version to recover your functions required and cross your fingers that nvidia released a new driver that solves your problem.

3) caused by a change again, which is the implementation of free software of the driver for the nVidia chips.
Problems with the kernel / new are more likely to be managed by the community.

As the drivers again as far as I understand, are released with updates to the kernel, you may have luck trying this:

When you start your PC, you can briefly see a sort of start with some choice menu.
Can be a list of kernels to boot from.

Example:

Ubuntu 12.04 - Kernel 3.2.0 - 122
Ubuntu 12.04 - Kernel 3.2.0 - 104
Ubuntu 12.04 - safe mode

and so on. Above are examples only because I don't know exactly how it may look in Ubuntu.

Please stop start pressing f.ex. upwards or downwards and select a core that is the precedent at latest.
In my example, it would be:

Ubuntu 12.04 - Kernel 3.2.0 - 104

Press ENTER and watch the startup of the unit.
What place in the office, attach an external display device to the port you need and see if things work as expected.

If so, you probably need to file a bug on the Ubuntu bugzilla report.

Let us know the result!

Tom BR

Tags: Toshiba

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