![]() Try a different HDMI port on the projector.If you are using Windows Media Player or Windows Media Center but get no HDMI audio even after it is selected as the default playback device, go to Control Panel>Sound>Playback tab>Audio/Playback device>HDMI>properties>Advance>Exclusive Mode and uncheck "exclusive mode".Try disconnecting and then reconnecting the HDMI cable.A few people with Intel graphics had better results by uninstalling the graphics driver, rebooting, and letting Windows look for a driver (instead of downloading the driver from the Dell support site). The graphics driver is the driver for HDMI audio, not the regular audio driver. If there is still no option to select "HDMI' as the default audio playback device, try re-installing or updating the graphics driver, or even try an older version.XP does not have "show disconnected devices". If "HDMI" is not there, right click in the white area and look under "Show Disconnected Devices" or "Show Disabled Devices" and see if it is there. Go to Start>Control Panel>Sound>Playback tab.To set, repeatedly press Fn+F8 (or ctrl+alt+F4) to cycle through the settings (laptop display only - laptop + projector - projector only). Some models do better if the projector is set to be the primary display. (Optional, some people close the laptop lid immediately after hitting the power button but I am not sure why. Adjust the projector settings to receive HDMI audio if any. Turn on the projector and select the HDMI port you are using.If the projector has a "DVI/HDMI" port do not use it. How To Connect A Monitor To A Laptop Without HDMI Wireless Screen Mirroring DisplayPort VGA USB-C An Adapter (From HDMI to DisplayPort, VGA or USB-C) Via. Connect the HDMI cable to the computer and projector.HDMI audio is extremely finicky and seems to usually need a reboot. Every time you try a different solution you should reboot the computer.Later, after you get your HDMI audio working, if you disconnect the cable while the computer is running and lose your audio, try closing and then re-opening whichever program you were using that generates audio. Turn off the computer and projector before connecting the HDMI cable.On models with Intel graphics the HDMI audio driver will appear in the Device Manager as "Audio Device on High Definition Audio Bus" or "Intel Display Audio". HDMI audio is incorporated into the graphics card's driver so make sure you have the newest version of your graphics card driver. HDMI has its own audio driver separate from the audio driver.Later, after you get your HDMI audio working, if you find that it still does not work on batteries you can change your power management settings in the Control Panel. Some of the models have a power management scheme that will not allow for HDMI audio while running on batteries. However, you will also need to use an alternate method to send sound from your laptop to the projector, as VGA does not transmit an audio signal the way HDMI does. ![]() If your laptop and projector both have VGA ports, you can connect them with a VGA cable and no adapter. VGA: This is an older video connector that is limited to a resolution of 640x480.Some projectors do support USB-C video input, though, in which case you can connect your laptop directly to the projector via a USB-C cable. USB-C: If your laptop uses USB-C to output video, you’ll typically need to buy a dock that includes an HDMI port or a USB-C to HDMI adapter.If it does, then you can either use an HDMI-to-DisplayPort cable or an HDMI-to-DisplayPort adapter. DisplayPort: These are more commonly on desktop video cards, but your laptop may have one.You can use a cable with HDMI on one end and HDMI type-c on the other or an adapter. Mini HDMI Port: Also known as HDMI type-c, these are functionally identical to HDMI, just much smaller.HDMI is the easiest way to connect a projector to your laptop. HDMI Port: If your laptop has a full-sized HDMI port and your projector has the same type of port, you won’t need an adapter.
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