Question about Panasonic PT LC75U Multimedia Projector

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Presentation mode is off...

When I hook up my projector to my computer and restart a message appears on computer screen telling me presentation mode is off. What does that mean and how do I fix it??

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  • FPSPI Jan 17, 2008

    Thanks for trying, but that did not help, still cannot get my presentation to appear on my projector even with this mode set to on.

  • FPSPI Jan 17, 2008


  • tontin123 Feb 22, 2008

    hello your instructions were great thanks. But I need to connect to a Plasma to export a presentation and it keeps saying Presentation Mode off. I have altered the ratio's and still nothing. Any more ideas that I might be able to try please? I have a Dell Inspiron 6400 laptop and am attempting to connect to a Samasung Plasma. Thank-you. Toni,

  • Anonymous Apr 03, 2008


  • Anonymous Aug 05, 2008

    presentation mode is off

  • Anonymous Oct 25, 2008

    Dell inspiron 9400, just bought myself a beamer but since the presentation mode is off i cannot view anything through the beamer.

    Have attempted to QUICK set, which also doesnt work.


  • bvenu2020 Nov 11, 2008

    dell laptop connected to the projector it is showing error presentation mode is off

  • stacy755 Nov 20, 2008

    Hello, I'm getting the same message that presentation mode if off using the same Dell laptop and View Sonic projector combo that has been sucessful in the past. What was the solution that made the other users so grateful?




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I'm going to guess that you have a wide screen Dell laptop with a 16:10 aspect ratio and a default resolution of 1280X800. The wide screen is great BUT most presentation grade projectors do not have a native (pixel for pixel) 16:10 mode. Instead they still prefer a display input with a 4:3 aspect ratio like your old square CRT or standard definition TV. Why do they prefer a 4:3 input? Mainly because Powerpoint prefers to display a slideshow in a 4:3 mode. Because of this Dell, in their infinite wisdom, created the 'presentation mode' utility in an attempt to automatically convert the VGA output of your laptop from 16:10 to 4:3 on the fly. In my experience this is an annoyance at best and at worst can seriously impact the size and quality of the projected image.

The best thing you can do when you connect to a projector is ignore the presentation mode alert and manually set your laptop's resolution to 1024X768 for an XGA rated projector or 800X600 for an SVGA rated projector. This will cause your desktop to look stretched on your laptop but will give you by far the best projection image.

Posted on Jan 17, 2008

  • Richard Lightfoot Jan 17, 2008

    I'm sorry your original post didn't say you weren't getting a display up on the projector. I assume you have tried toggling the display with fn-F8, if not try that. If that doesn't work then move on to setting things manually.

    If your laptop has an ATI graphics chipset right click anywhere on the desktop and select Catalyst Control Center. If you can make sure to switch to advanced mode. Now click the Displays Manager in the list on the left. In the lower part of the window, set the Desktop Area to 1024X768. Next right click on the CRT icon and select the clone option. Finally click the OK button. Note: Right under the CRT icon it should list an attatched display. If it doesn't then a bad vga cable or connection is the likely culprit.

    For an Intel graphics chipset right click anywhere on the desktop and select graphics options. If there is an output to option select that and then clone main+monitor. If there is no output option then your laptop isn't detecting the projector. Again try a different VGA cable and check all connections.

    For an Nvidia graphics chipset, things get a little more complicated as the exact method used varies much more so depending on the exact chipset, driver revision and options set than for ATI or Intel but the basic process is similar. Use the above methods as a guideline. Keep looking until you get to a displays manager and a clone option.

    If none of these apply you can try using Windows extended desktop technology. Right click on the desktop, select properties then click the settings tab and finally click the advanced button. If your projector has been detected you should have the option the extend your desktop on to the second display. If this worked then you'll have to set up PowerPoint to use the second display. To this start PowerPoint. click the "slideshow" drop down menu and select "Set up Show..." option. In the window that opens there is an option the right for Multiple Monitors. Set "Display slideshow on" to secondary monitor and check the Show Presenter view box and click okay. Now your slideshow should show up on the projector and your laptop will have a completely different display with extra controls, a timer and any notes you added to your slides.

    If none of this works then try your computer with another projector or even just another external monitor AND try another computer with this projector. This will help track down the problem. Remember the vast majority of problems can be tracked down to cabling and/or connection problems. Make sure none of the pins on your VGA cables are bent or pushed in too far. Also, and I can't stress this enough, make sure your computer resolution is set to 1024X768 or 800X600. Your projector might choke on any other setting.

  • Richard Lightfoot Mar 01, 2008

    Connecting to a plasma display can be a little different than a projector but as before start with a resolution of 1024X768 or if you computer will allow it, try 1280X720 (this is equivalent to 720p). For a Dell toggle your display with the fn-F8 hotkey combo. In this case you may want Presentation mode turned on. You can do this with the Dell Quickset utility. Look in the lower right corner for a QS icon in the tray and right click it for options and help.


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Most of the time the problem resides between the chair and the keyboard. Yes! indeed. By rule of thumb the sceen resolution and projector must of the same ratio for the proper display. Newer Dell projectors can adjust this automatically with wide screen dell laptops. Please make sure to press fn(key) and F7 on dell wide screen laptops before connecting the projector. This will enable the screen compression for proper display!

Posted on Oct 20, 2008

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Thanks a lot for the solution. You guys are awesome.

Posted on Feb 01, 2008

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You can turn presentation mode on through the dell quickset software.
Go to display settings in dell quickset and you can turn on presentation mode.

Posted on Feb 10, 2010

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Posted on Jan 02, 2017

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SOURCE: when i hook up my projector to my computer a messa...

hello, just go over this page to set up the projector

Posted on May 24, 2010

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