Re: No voice, Power Point Slide Show view on Laptop with HDMI connected, NVDA restart fixes problem
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I will look into this as I try to replicate the problem using a TV monitor instead of a projector and see if the sound actually gets rerouted. However, this only happens on the Power Point Slide Show window. All other windows continue speaking out the default speaker. I would think that all speech would be rerouted and not just the slide show. Additionally, once I restart NVDA, I can open and close Power Point and the speech continues to come out the default speaker when starting a slide show.
Also, Narrator does not exhibit this problem.
From: email@example.com <firstname.lastname@example.org> On Behalf Of Joseph Lee
Sent: Friday, October 12, 2018 3:37 PM
Subject: Re: [nvda] No voice, Power Point Slide Show view on Laptop with HDMI connected, NVDA restart fixes problem
This may have to do with audio output redirection: when an HDMI cable is connected, sound is sent through the cable, so NVDA may not recognize that you’ve still got your internal sound card active. You can ask NVDA to speak through a chosen sound card via Synthesizer/output device combo box (Control+NVDA+S).
I have 2 high-end Lenovo laptops with nVidia graphics cards. Both are running Windows 10 Professional and Office 365 desktop apps. One computer is brand new while the other is 3 years old. These are work computers, so Windows and Office are updated within the last few months and not necessarily running the absolute latest updates. I am running the latest released version of NVDA and have no addin present. I have Microsoft Speech API Version 5 as my voice.
If connected to projectors using the HDMI port, putting a Power Point presentation into slide show mode (by pressing the F5 key) I lose all speech output on that particular window. It doesn’t matter if I am using the internal speakers or am connected to a wired or wireless headset. Alt tabbing to other windows and NVDA speaks just fine, but not on the slide show window. Moving from slide to slide produces no speech. If the HDMI connection is not present, NVDA speaks just fine in slide show mode.
If I now restart NVDA with Power Point still displaying the slide show and the HDMI connection still present, everything works as expected. NVDA reads the slides as I navigate from slide to slide, using the internal speakers or connected headset.
I tried restarting NVDA after booting the computer to see if it was a problem with the autostart of NVDA completing prior to other parts of the system completing initialization, but it still failed to speak in slide show window until restarting NVDA after launching Power Point.