power point presentation

Hello Eiler, Gary,

I see that you have some confusing while using power point presentation. I'm happy to assist you further.

Answering each of your concerns:

1. Slides do NOT advance in Slide Show

Try this:

Open the presentation.

Select all slides (Ctrl + A in the slide pane).

Go to Transitions tab.

In Advance Slide:

• Check On Mouse Click
• Uncheck After (unless you want auto‑timing)

Click Apply to All.

Go to Slide Show > Set Up Slide Show:

• Select Presented by a speaker
• Uncheck Browsed at a kiosk (full screen)

Go to Slide Show > From Beginning and test. If it still won’t advance, then try:

Go to Slide Show > Custom Slide Show. If any custom show exists >Delete it

Check animations:

• Go to Animations > Animation Pane
• Delete any animation set to On Click that blocks slide advance

This behavior is documented in Microsoft Q&A threads where kiosk mode, custom slide shows, or animation click locks prevent advancing.

2. Video shows audio only when played on TV (HDMI)

This is a Windows + GPU + HDMI codec / driver issue, not the PowerPoint file.

Confirm video format: Video must be.mp4 (H.264 + AAC) Unsupported formats often cause audio‑only playback

Set correct audio device

• Right‑click speaker icon > Sound settings
• Under Choose where to play sound > select TV / HDMI output
• Test again

Re‑initialize HDMI

• Close PowerPoint
• Unplug HDMI
• Power off TV
• Power TV back on
• Plug HDMI back in
• Open PowerPoint > play slideshow

Disable hardware acceleration (CRITICAL)

• PowerPoint > File > Options > Advanced
• Under Display: Check Disable hardware graphics acceleration
• Restart PowerPoint

Update / reinstall graphics driver

• Download OEM driver (Intel / NVIDIA / AMD) from manufacturer site
• Reinstall driver This is a confirmed fix for PowerPoint HDMI playback failures

3. If you want to make a video (Export > Video), check this out:

If exported video shows audio only on TV:

Re‑export using:

• Full HD (1080p)
• Use Recorded Timings and Narrations

Test video in VLC Media Player

• If VLC also shows audio‑only > codec issue
• Convert to MP4 (H.264) and re‑export

I hope this will help with your situation. Please feel free to reach back if you have further update or more questions.

Best Regards,

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Two separate issues are involved: slide advancement in PowerPoint, and video playback on the TV.

1. Slides do not advance in PowerPoint

• When recording or playing a presentation as a video, slide timings and animations must be set.
• Record the presentation so PowerPoint knows when to advance slides:
  • Use the recording feature so narration, animations, pointer movements, and timings are saved into the presentation. These timings control automatic slide advancement when exported as a video.
• Alternatively, if presenting live, ensure manual advance is used (keyboard arrows, mouse click, or remote) and that no modal dialog is open blocking input.

2. Video shows only audio on TV

• PowerPoint can export to video formats that are widely supported:
  • Save/export as MPEG-4 (.mp4) or .wmv.
• If the TV only plays audio, the issue is usually with video codec support on the TV or the way the file was created.
  • Re‑export the presentation as an .mp4 file from PowerPoint.
  • Avoid uncommon codecs; use the standard export options in PowerPoint so the TV can decode both audio and video.
• If the video contains embedded media, PowerPoint’s export will include it so it plays correctly in the resulting video file.

If the TV still plays only audio, test the exported .mp4 on a PC first. If it plays correctly there (both audio and video), the limitation is on the TV’s media support and a different TV/player or an updated device/firmware may be required.

References:

• Turn your presentation into a video