Question about Panasonic PT LC75U Multimedia Projector

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Presentation mode is off in laptop

Hi when i am unable to attach my laptop with lcd as it is showing presentation mode is off Hi I have a similar issue. I have a Dell Inspiron 6400 and my wife has a Dell Inspiron 1300. The Intel graphics card is the same in both. When I connect my 6400 to a data projector it allows any presentation mode to be selected and works straight away. With the 1300 I can only get the laptop screen or the external screen but not both. I have gone into Control Panel on the 1300 and used the graphics card utility to enable dual display or clone display mode and that doesn't make any difference, and I don't have to do that with the 6400. It is just set on 'Notebook'. Any ideas?

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  • griffo48 May 26, 2009

    thanks so much for your VERY fast response. Won't be able to try til later today. Didn't want you to think I was ignoring your suggestion. Will post result as soon as I can, and again thanks.

  • griffo48 May 27, 2009

    Hi again



    Have followed your suggestions with mixed results, as the 2 laptops still operate differently. I'll try to be brief.



    Checked settings and can see 2 monitors displayed on both laptops whether plugged in to projector or not. Hovering mouse over 'monitor 2' says 'Not active' on both laptops. The 6400 works exactly as you would expect, giving all 3 display modes and able to toggle between all 3. I can open a Powerpoint presentation in .pps mode and see the slides in full screen mode on the laptop and projected on the screen. It does seem to need to be on 800 x 600 resolution to see the full screen.



    The 1300, when presentation mode selected, displays the normal desktop with icons showing on its screen. The projector however is showing the desktop background with no icons or mouse movement. It is also twitching/distorting at the top of the image. If i open a powerpoint presentaion in .ppt format, go into 'Set slide show' and set it to show on the monitor and start the slide show, voila. Except that the twitching/distortion at the top remains, and the slide transition is a bit laborious. Also the view is different on the laptop, where it is still showing the slide view rather than the presentation view. Also I can't start a .pps file this way as I can't get to the settings of course. My wife is technology averse and needs to be able to plug this in, click on a .pps presentation scroll thru the presentation and finish. All possible on the 6400 but not on her 1300.



    There, I said I'd be brief, didn't I?

  • griffo48 May 27, 2009

    Hi and thanks again



    Spoke with Dell before I started the post here and they also suggested a driver update. Downloaded the appropraite driver from their website, and uninstalled the existing one in Control Panel/Add Remove Programmes. Trouble is, on restart it automatically found new hardware and re-installed the old driver. I tried to run the exe of the downloaded one but it failed. Not sure how to overcome this?



    Brian

  • griffo48 May 27, 2009

    Hi (maybe for the last time)



    Managed to update the drivers after much mucking about, restore points and I don't know what all. Eventually had to do it in safe mode....don't ask.



    Fixed the problem except for the twitching which is continuous and unacceptable for a presentation. Will try a different cable just to be sure, but this one works fine with the 6400. Who knows. Anyway thanks for your attention. It's been nice to know someone is listening.



    Brian

  • Evans St. Romain, Jr.
    Evans St. Romain, Jr. May 11, 2010

    Good catch on the 800x600 resolution! Most projectors (except for the high end models), have to have 800x600 to display the image. However, the twitching/distorting at the top of the image tells me you either have a graphics driver issue or possibly a bad cable. Assuming you're switching between the 6400 & the 1300, it's not the cable. Could it be the connector on the laptop? Given your test results, I'd say it's definitely something with the 1300. Still leaning toward a driver update.

  • Evans St. Romain, Jr.
    Evans St. Romain, Jr. May 11, 2010

    Your laptop has to know an external monitor or projector is attached before the projector will see any signal coming to it. Right-click anywhere on the desktop & go to Settings and verify that it shows a second "monitor" is attached. Then turn on the projector & try it. By presentation mode I assume you're using PowerPoint? Again, the notebook has to have a second output 1st. Then check that you have Display on secondary monitor selected. Then start presentation mode. It's a sequence thing, try it and let me know.

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I have a similar issue pls solve

Posted on May 28, 2009

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use the remote control or the menu button on the projector - navigate the menu system of the projector and one of the options should be able to alter the presentation mode from off to on.

If you post back with the model of the projector can either post a link back with a pdf manual for it or if you read the manual it should show in there how to enable the presentation mode.

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configuring your graphics card for the projector will vary from graphics card to graphics card as the drivers are different between manufacturers and they place things in different places.

If you also post back with what make and model of graphics card you have on your laptop I can try and assist you further with how to ensure your laptop is outputting to the projector.

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