Windows 10: No sound through diplayport after upgrading to windows 10 on my hp elitebook 8440p laptop

Hi

After upgrading my laptop to windows 10 i have no sound through my displaport when connecting to an external projector , monitor or tv source. Everything was working fine with windows 7. This is very annoying, i use this old but good laptop for business projects & i don't want to mess up with extra cables. A question , why does Microsoft do that, you should at least release a universal driver to avoid such problems. Please give a proper solution. Thank you.

:)

 

HP EliteBook 8440p Windows 10 pro base sys device driver not installed

Usually, its your chipset driver.

The most recent driver for this model are Windows 7 only. So, you will have to try those to see if they work:

https://support.hp.com/lamerica_nsc_carib-en/dr...

Make sure the most important are installed: Chipset, Display driver and Network (Ethernet and Wireless).

Also, install any storage drivers.

To find other drivers that might be missing.

Press Windows key + X

Click Device Manager

Right click in entries you see with an exclamation sign

Click Properties

Go to the Details tab

Click in the Property list box

Choose Hardware ids

Choose the shortest value in the value list box

Right click it then click Copy

Open your web browser and go to your favorite search engine then paste it in then perform a search. It should provide a description and like resource link where you can download the driver.

 

after windows 10 release my hp 8440p will not find my mobile broadband card/modem

after windows 10 release my hp 8440p will not find my mobile broadband card/modem. i have tried to find it but it is not even listed in to device manager. it is for qualcomm gobi 2000 and it is connect to a pannel under the laptop

 

HP Pavilion X2 upgrade to 1709 - no sound


I eventually got my detachable laptop to upgrade to Fall Creator, and was very pleased, then noticed that when I received notifications there was no sound, checked all the usual suspects, volume, system sounds, drivers, etc even plugged a headset in, no sound. Using the HP troubleshooter, its first step was to take me through Windows troubleshooter, through the drivers uninstall, it even had me reset my BIOS. HP have a hardware tester built into the UEFI, and on following the instructions, sounds out of the speakers, indicating a pass, but still no sounds from W10. The last suggestion from HP was to update the BIOS, however knowing the system worked before the upgrade decided against that. I followed the roll-back instruction, and after noting the audio drivers in 1709, found the same drivers in the roll backed version, but the sound was working again - bizarre!