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AV-Help frequently asked questions.

On this page:

How can a conference room be reserved?

You can view the availability and reserve a conference room through Meeting Room Manager (MRM). More information about using MRM is available here.

What rooms are supported by AV-Help?

A full list and brief overview of supported rooms can be found here.

If AV-Help does not support this room, who does and how can they be contacted?

Media Tech supports many rooms on campus. To contact Media Tech and see if a room is supported, you can send mail to mediatech@cmu.edu, call them at x8-8855 or visit their webpage http://www.cmu.edu/computing/class-event/.

With the laptop plugged in, there is no signal from the projector.

  • Check to make sure the display settings are not set too high. Optimal display settings are 1024x768 with a refresh rate of 75hz.
  • Ensure that the VGA cables are securely connected with both screws secured snugly.
  • Macintosh laptops require an external display adapter to connect to a VGA feed. An active video signal is required before plugging the adapter into the laptop. To correct this, ensure that the display adapter is connected to the external display, disconnect and reconnect the display adapter to the laptop.
  • Some laptops are equipped with a graphics card that needs to be configured from its own preferences interface. From Control Panel -> Display -> Settings -> Advanced, there may be a tab for the graphics card, which will take you to its configuration settings. Be sure the settings here are also at a resolution of 1024 x 768 or lower and are on "Dual Display Mode", "Extended Desktop", or a similar option that allows the display to be rendered both on the laptop screen and the attached monitor (i.e., the projector).

The audio is low or completely off.

  • Make sure the volume is set to a reasonable level on the EZtrol or Crestron Touch Screen (podium control panel).
  • Ensure that the input volume (PC or laptop Master volume) is set to a reasonable level and not muted.
  • A few rooms offer a wall-mounted switch for audio control. Please check the walls near the podium to see if such a switch exists. If one exists, make sure that sound is enabled and at a reasonable volume.
  • If the above do not solve your problem, try lowering the EZtrol or Crestron volume all the way to its lowest level, then raise the volume level back up to midway.
  • If the problem persists, please send mail to av-help@cs.cmu.edu. If it happens to be an emergency you can call AV-Help at x8-2608.

The projector displays "low lamp hours" message on screen.

This is a built-in function on some of our projectors and usually means the bulb needs to be replaced in the near future. Please send mail to av-help@cs.cmu.edu with your room number and the approximate time the message was displayed.

The projector is displaying distorted images.

Power off the projector on the EZtrol or Crestron Panel (podium control panel). Wait for a full minute and power the projector back on. This often solves this problem, if it does not, please repeat the process one more time before sending mail to av-help@cs.cmu.edu.

The projector display is shaky, flickering, blurry, or very dull.

  • Please first check that your video settings are not set too high. Optimal settings are 1024x768 with a refresh rate of 75hz.
  • Ensure that the VGA cables are securely connected with both screws secured snugly.
  • If possible, check the connection of another laptop or the podium PC.
  • If the problem persists, please send mail to av-help@cs.cmu.edu with the room number and we'll test the projector bulb. In an emergency, please call AV-Help at x8-2608.

The projector coloring is distorted (lots of green or red).

  • Try tightening up the screws on the VGA cable into the video source. On public use machines, cables tend to loosen up or are never fully plugged into the video source, this causes a poor connection and is usually the cause of this particular problem.
  • If securing the VGA cable with the screws does not solve your issue, the cable could be bad or there could be a bad VGA outlet on the source machine. If the problem persists, please send mail to av-help@cs.cmu.edu with the room number and approximate time of the problem. In an emergency, please call AV-Help at x8-2608.

The EZtrol or Crestron control panel is unresponsive or the projector is stuck with a blue display.

This is a known but rare issue with the EZtrol and Crestron panels. From time to time they may freeze up and will need to be reset. Due to the sensitive nature of these panels, we ask that you call AV-Help at x8-2608 to have the panel reset.

Video conferencing

AV-Help supports video conferencing for the rooms GHC6501 and GHC7101. If you need to have it set up, you can contact Media Technology Services at mediatech@cmu.edu, call them at x8-8855 or visit their webpage http://www.cmu.edu/computing/class-event/

Long distance conference calls

If you have reserved a conference phone and need to make a long distance call, you will need to contact Paul Stockhausen (stocky@cs.cmu.edu) to get an LDA code from Telecom. An Oracle string is necessary for billing.

Podium and lectern login information

The username and password for these PC's are "av-guest" and "guest". Make sure you are logging into the local machine and not the SCS domain.