Troubleshooting / Errors
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Projector is Not Showing Content
Q: Why is the connection between my computer and the projector unstable/unreliable? Answer: This is almost always because of an adapter, though it could also be due to a loose input on the computer itself. Mac users need USB-C to HDMI adapters and those can fail, even the Apple brand ones. The helpdesk keeps a stock of these adapters and ITS can examine any hardware issues with your computer. Contact us in the moment or when you have time at helpdesk@oxy.edu 323-259-2942. Q: Why is the projector showing a blue screen? Answer: When the projector shows a blue screen, the projector is on but it is not detecting an input to display. Check the input setting on the lectern or wall panel. For your laptop it should either be set to "laptop" or HDMI when your laptop is plugged into the HDMI cable provided. Example of an HDMI input cable: Typical rooms have: Room PC, HDMI, VGA (not used much), and sometimes BluRay. Q: Why is the projector showing a black screen? Answer: A black screen means the projector is receiving the input but there is nothing to show. Sometimes the “black screen” projector mute button is on. Recently, digital copyright restrictions have made it difficult to stream content to a second monitor. The solution for this is to extend rather than mirror displays on the computer they are using. Mirror and Extended Display Settings: For Windows For Mac Q: Why does the film I’m streaming only show up on my own computer? Answer: Most streaming apps now block screen mirroring and recording. This includes Netflix, Hulu, Amazon Prime Video, Disney+ and others. To work around this issue on a classroom AV system (whether projector or external flatscreen monitor) change the device settings to “Extended Display.” How to Change Mirror and Extended Display Settings: For Windows For Mac
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Audio not Coming through the Room Speakers
Q: Why is audio coming out of my computer and not the room system? Answer: the audio settings in the computer need to be adjusted to send the audio to HDMI (instead of the built in speaker). This issue tends to happen more frequently on Macs. Learn more about the audio settings for: Windows 11 and 10 Mac OS
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Streamed Film Only Shows on Computer not Projector
Q: Why does the film I’m streaming only show up on my own computer? Answer: Most streaming apps now block screen mirroring and recording. This includes Netflix, Hulu, Amazon Prime Video, Disney+ and others. To work around this issue on a classroom AV system (whether projector or external flatscreen monitor) change the computer settings to “Extended Display.” Mirror and Extended Display Settings: For Windows For Mac
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Improve Audio Quality in Hybrid Meetings
In our hyrbid-ready classrooms, cameras and speaker/microphone arrays are connected to the Dell Desktop PC at the lectern. Simply open Zoom and you'll be connected to the room system. The speaker looks small or far away - can people really hear me? The modern echo-cancelling speakerphone technology contains up to six virtual microphones that are constantly scanning the room to determine who is speaking. They use algorithms to detect and suppress ambient noise and prevent feedback. The systems are designed to support the size of the room. The Zoom audience says they can't hear, what do I do? Most often, this issue is caused by too much noise suppression between the Zoom software and the in room microphones. Here are some things to try: - go to Audio settings and reduce the noise cancellation setting from "Auto" to "Low" [Read How from Zoom] - ask the live participants to be mindful that cross-talk will impede the virtual participants' ability to understand what is being said