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HP EliteBook 8440p Notebook PCs - No Audio After Undocking ...
https://support.hp.com/us-en/document/c04211962
DESCRIPTION. The computer does not produce audio after detaching the computer from the docking station. This only occurs when the computer is powered on while being undocked and then the DP-to-HDMI cable is connected directly to the computer. SCOPE. Information in this document applies to the following: Computers: HP EliteBook 8440p …
Elitebook 8440P no sound via HDMI ... - community.hp.com
https://h30434.www3.hp.com/t5/Notebook-Audio/Elitebook-8440P-no-sound-via-HDMI-Display-port/td-p/7615612
If I uninstall the HD Audio Device and try to install SP47020.exe the screen flashes (so I presume the graphics drivers are installed) but the NVIDIA HD audio has the same version number and date (so presumably never got installed) and the HD Audio device is still missing and the sound does not work.
HP EliteBook 8440p no Sound Problem Fix | Mindaugo blogas
https://karalius.wordpress.com/2015/10/07/hp-elitebook-8440p-no-sound-problem-fix/
I had weird problem on my HP EliteBook 8440p on Windows 7 64bit – I had no sound on speakers. Drivers were installed, no errors in Device Manager. I can see feedback in Windows Volume Mixer. The sound was OK using headphones, however, no sound on speakers. Then googling in this forum “IDT driver update = No sound from the built-in speakers” I found …
HP PCs - A "No audio device is installed" message …
https://support.hp.com/us-en/document/ish_3913422-3266884-16
Check the playback device setup and connection. Check playback device status in the sound …
How to Fix the ‘No Audio Output Device Is Installed’ Error ...
https://www.youtube.com/watch?v=LWfp9flIswk
How to Fix the ‘No Audio Output Device Is Installed’ Error in Windows 10 [Tutorial]You’re all set to play the latest remix you just downloaded, but when you ...
"No Audio Output Device is Installed" issue on HP Laptop ...
https://answers.microsoft.com/en-us/windows/forum/all/no-audio-output-device-is-installed-issue-on-hp/1542201b-f48a-4948-8bb0-38895c8cc74d
2) Right click the volume icon in System Tray at right end of task bar, to Troubleshoot Problems. 3) Run the Playing Sound troubleshooter at Start button > Settings>Update & Security>Troubleshoot. 4) Try rolling back the sound driver in Device Manager reached by right clicking the Start button.
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