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Difference between revisions of "Help with Laptop Projection"

 
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== PC laptop projection problems  ==
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== Laptop projection problems (Mac or PC) ==
  
<br>If a laptop is connected through the VGA cable to the projection system and there is no image on the screen:<br>1) Press and hold Fn, then press F8 (Dell laptop method) to toggle between the available display modes. There are normally three display modes available; laptop display only, laptop and projected image, or projected image only. Please be aware that switching between modes can take a few seconds to occur.<br>2) If the above does not correct the problem, be sure the laptop is connected correctly and then reboot.  
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This page provides additional solutions, not covered in the [[Projecting from your Laptop Computer|basic guide]] for projecting from your laptop. Before reading this page, please see the basic guide for tips on solving laptop projection problems:&nbsp;[[Projecting from your Laptop Computer#What_to_do_if_Your_Computer_doesn.27t_project|Projecting_from_your_Laptop_Computer - What_to_do_if_Your_Computer_doesn't_project]]
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Projection Protocol Continued:
  
If the projected image is displaying wallpaper and the laptop display is normal, see Projecting from a Laptop you can only see your wallpaper or desktop and nothing else.
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Below are some additional tips and tricks to try if you are experiencing projection  issues on Macintosh Apple computers that cannot be easily remedied by previous shortcuts:
  
Should the projected image be off-color, blue or yellow tint, or is off-center, have the caller adjust the blue (possibly black) knob, Horizontal Position, on the Inline interface. The Inline interface is normally located above the top surface of the lectern and can be identified by following the VGA cable that is connected to the laptop computer. The Horizontal Position control should be slowly rotated while watching the projected image.  
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Reseat the dongle that you are using----unplug and replug the dongle( HDMI or VGA).
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Reboot your computer.
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Try the recommended resolutions of 1024X768 or 1280X 800. You may need to hover the pointer over the options on a MAC and hit ALT/Option keys and click the scaled option to get more resolutions.
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Quit all applications and try mirroring when you are on the computer background screen.
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Try Command+ F1 and try System Preferences>Displays>Arrangement tab> Mirror displays.
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Try Alt/Option and click on detect displays
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Check to make sure that you are not forcing the software( Powerpoint for example) to display in a way that does not allow you to configure another display type. If you suspect this then close all powerpoints or check the settings in each powerpoint.
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try a different dongle type( VGA vs. HDMI)
 +
Get OS version of the Mac.
 +
Google " reset PRAM "and follow directions.
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Google " reset SMC " and follow directions.
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The above steps are rarely needed but good to know when all else fails.
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Unplugging dongle, or video cable , restarting the system from the touch panel and rebooting ( restarting  ) your laptop and then plugging in required cables and then restarting the system  has resulted in successful projection in the majority of instances when Media Services has assisted with classroom projection problems.
  
If the projected image is cut off on the sides or bottom, first check the resolution in Control Panel, Display and Settings. Should the display be set to 1280 x 1024 (SXGA, 5:4 aspect ratio), resetting to 1024 x 768 (XGA, 4:3 aspect ratio) should correct the problem <br>1280 x 1024 (SXGA) is a squarer image and will not display correctly when projected onto a 4:3 aspect ratio screen.<br>Name Pixel array Aspect ratio Comment <br>VGA 640x480 4:3 <br>SVGA 800x600 4:3 <br>XGA 1024x768 4:3 <br>WXGA 1365x768 16:9 Wide-XGA; used for wide screen LC TV displays (beware: sometimes 1280x768 is called WXGA) <br>SXGA 1280x1024 5:4 This format is "squarer" than the others <br>UXGA 1600x1200 4:3 <br>QXGA 2048x1536 4:3
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[[Category:Projection from mac laptop tips and tricks]]
  
<br>
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== Computer Resolutions  ==
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Some information on computer resolutions:<br>
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 +
{| width="75%" border="1" cellpadding="1" cellspacing="1"
 +
|-
 +
| '''Name'''
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| '''Pixel&nbsp;array'''
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| '''Aspect ratio'''
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| '''Comment'''
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|-
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| VGA&nbsp;
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| 640x480
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| 4:3
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|
 +
|-
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| SVGA&nbsp;
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| 800x600
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| 4:3
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|
 +
|-
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| XGA&nbsp;
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| 1024x768
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| 4:3
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| This is probably the best resolution to use in most situations.
 +
|-
 +
| WXGA
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| 1365x768
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| 16:9
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| Wide-XGA; used for wide screen LC TV displays (beware: sometimes 1280x768 is called WXGA)
 +
|-
 +
| SXGA&nbsp;
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| 1280x1024
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| 5:4
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| squarer image and will not display correctly when projected onto a 4:3 aspect ratio screen.
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|-
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| UXGA&nbsp;
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| 1600x1200
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| 4:3
 +
|
 +
|-
 +
| QXGA&nbsp;
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| 2048x1536
 +
| 4:3
 +
|
 +
|}
 +
 
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== Apple Color Profiles and Projection Issues  ==
 +
 
 +
Issue: We've had many an instance where the Mac's default color calibration (most likely gamma) was too dark when projected on a projector (but fine on the Mac's internal display). <br>
 +
 
 +
Solution:<br>1) Connect to the projector or display where the issue is obvious.<br>2) Click on the Apple logo and select System Preferences &gt; Displays.<br>3) There will be two windows with color settings. Click on the one NOT named Color LCD.<br>4) Click on the Arrangement tab and place a checkmark next to "Mirror displays" (if this checkbox isn't already checked).<br>5) Click on the Color tab and select Generic RGB. This should brighten the image displayed through the projector. If this doesn't resolve the issue, try some of the other options next to Generic RGB. If that doesn't help, you may need to follow these instructions: http://support.apple.com/kb/ht3712<br>
  
 
== Laptop Projection Shortcuts  ==
 
== Laptop Projection Shortcuts  ==
  
Dell: Fn+F8 (or F6)  
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'''Dell with Windows XP''': Fn+F8 (or F6)
  
Apple: Command (that's the apple key) +&nbsp;F1 or F7
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'''Any Windows 7 computer''': Windows Key + P
  
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'''Apple''':&nbsp;You can also try pressing Command (that's the apple key) +&nbsp;F1 or F7, though Apple has been trying to discontinue this shortcut.
  
 +
== PC Laptop Audio &amp; Displayport Problems  ==
  
 +
When you are trying to project from a PC&nbsp;Laptop using the HDMI or DisplayPort, this function is trying to send the video and&nbsp;audio signal through the same cable (HDMI or DisplayPort). In situations where the audio and video are on a separate cable, this is not going to work&nbsp;because you will not have any sound.&nbsp;&nbsp;
  
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<br>
  
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You will&nbsp;need to change the default adio settings. Go to:
  
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<br>
  
== PC Laptop Audio &amp; Displayport Problems ==
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Start
  
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Settings
  
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Control Panel
  
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Sounds and Audio Devices
  
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Audio
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Then under the Default Device selct the IDT&nbsp;Audio option.&nbsp;
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<br>
  
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Click apply and then Yes to save new settings. &nbsp;
  
  
== NVIDIA&nbsp;Control&nbsp;Panel Settings ==
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=== Connecting a Mac computer to a projector or TV or monitor using HDMI  ===
  
 +
For Mac models that have Mini DisplayPort/Thunderbolt, it is possible to use an HDMI adapter to connect to some of our newer classrooms and project a much higher quality image. For more information, visit [[Connecting a Mac computer to a projector or TV or monitor using HDMI]].
  
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== NVIDIA&nbsp;Control&nbsp;Panel Settings  ==
  
If users of the new Windows laptops (such as the E6400’s) have trouble with projection after using techniques such as Fn+F8, adjusting screen resolution, etc., have them try the following:
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Some of our laptops were shipped by Dell with an NVidia graphics card that needs to be activated for projection and dual-screen use. See [[Projecting from your Laptop Computer#NVIDIA.C2.A0Control.C2.A0Panel_Settings|this article]] for details.
  
1. Right-click the desktop and select NVIDIA Control Panel from the pop-up menu. The NVIDIA Control Panel dialog box opens.<br>NOTE: The first time another dialog box will open – select Standard and then click OK.<br>2. On the Select Task pane on the left, under Display select Set up multiple displays or Change display options.<br>3. Select The same on both displays (clone).<br>4. Click Apply.<br>5. Click Yes to save the changes.
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==Update your operating system and drivers==
 +
If you've followed all other troubleshooting tips and you are still having issues, please update your operating system and your video drivers:
 +
* If you have a Mac computer, run [http://support.apple.com/kb/HT1338 Apple Software Update]. This will update both the operating system and the video drivers.
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* If you have a PC computer, run [http://update.microsoft.com Windows Update], then visit your computer manufacturer's support page to obtain video drivers.
  
 
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[[Category:Media]]
 
[[Category:Media]]
 
[[Category:Mac]]
 
[[Category:Mac]]
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[[Category:Helpdesk Documentation]]
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[[Category:Media Services]]
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[[Category:Public Search]]

Latest revision as of 10:58, 12 July 2016

Laptop projection problems (Mac or PC)

This page provides additional solutions, not covered in the basic guide for projecting from your laptop. Before reading this page, please see the basic guide for tips on solving laptop projection problems: Projecting_from_your_Laptop_Computer - What_to_do_if_Your_Computer_doesn't_project Projection Protocol Continued:

Below are some additional tips and tricks to try if you are experiencing projection issues on Macintosh Apple computers that cannot be easily remedied by previous shortcuts:

Reseat the dongle that you are using----unplug and replug the dongle( HDMI or VGA). Reboot your computer. Try the recommended resolutions of 1024X768 or 1280X 800. You may need to hover the pointer over the options on a MAC and hit ALT/Option keys and click the scaled option to get more resolutions. Quit all applications and try mirroring when you are on the computer background screen. Try Command+ F1 and try System Preferences>Displays>Arrangement tab> Mirror displays. Try Alt/Option and click on detect displays Check to make sure that you are not forcing the software( Powerpoint for example) to display in a way that does not allow you to configure another display type. If you suspect this then close all powerpoints or check the settings in each powerpoint. try a different dongle type( VGA vs. HDMI) Get OS version of the Mac. Google " reset PRAM "and follow directions. Google " reset SMC " and follow directions. The above steps are rarely needed but good to know when all else fails.

Unplugging dongle, or video cable , restarting the system from the touch panel and rebooting ( restarting  ) your laptop and then plugging in required cables and then restarting the system  has resulted in successful projection in the majority of instances when Media Services has assisted with classroom projection problems.

Computer Resolutions

Some information on computer resolutions:

Name Pixel array Aspect ratio Comment
VGA  640x480 4:3
SVGA  800x600 4:3
XGA  1024x768 4:3 This is probably the best resolution to use in most situations.
WXGA 1365x768 16:9 Wide-XGA; used for wide screen LC TV displays (beware: sometimes 1280x768 is called WXGA)
SXGA  1280x1024 5:4 squarer image and will not display correctly when projected onto a 4:3 aspect ratio screen.
UXGA  1600x1200 4:3
QXGA  2048x1536 4:3

Apple Color Profiles and Projection Issues

Issue: We've had many an instance where the Mac's default color calibration (most likely gamma) was too dark when projected on a projector (but fine on the Mac's internal display).

Solution:
1) Connect to the projector or display where the issue is obvious.
2) Click on the Apple logo and select System Preferences > Displays.
3) There will be two windows with color settings. Click on the one NOT named Color LCD.
4) Click on the Arrangement tab and place a checkmark next to "Mirror displays" (if this checkbox isn't already checked).
5) Click on the Color tab and select Generic RGB. This should brighten the image displayed through the projector. If this doesn't resolve the issue, try some of the other options next to Generic RGB. If that doesn't help, you may need to follow these instructions: http://support.apple.com/kb/ht3712

Laptop Projection Shortcuts

Dell with Windows XP: Fn+F8 (or F6)

Any Windows 7 computer: Windows Key + P

Apple: You can also try pressing Command (that's the apple key) + F1 or F7, though Apple has been trying to discontinue this shortcut.

PC Laptop Audio & Displayport Problems

When you are trying to project from a PC Laptop using the HDMI or DisplayPort, this function is trying to send the video and audio signal through the same cable (HDMI or DisplayPort). In situations where the audio and video are on a separate cable, this is not going to work because you will not have any sound.  


You will need to change the default adio settings. Go to:


Start

Settings

Control Panel

Sounds and Audio Devices

Audio

Then under the Default Device selct the IDT Audio option. 


Click apply and then Yes to save new settings.  


Connecting a Mac computer to a projector or TV or monitor using HDMI

For Mac models that have Mini DisplayPort/Thunderbolt, it is possible to use an HDMI adapter to connect to some of our newer classrooms and project a much higher quality image. For more information, visit Connecting a Mac computer to a projector or TV or monitor using HDMI.

NVIDIA Control Panel Settings

Some of our laptops were shipped by Dell with an NVidia graphics card that needs to be activated for projection and dual-screen use. See this article for details.

Update your operating system and drivers

If you've followed all other troubleshooting tips and you are still having issues, please update your operating system and your video drivers:

  • If you have a Mac computer, run Apple Software Update. This will update both the operating system and the video drivers.
  • If you have a PC computer, run Windows Update, then visit your computer manufacturer's support page to obtain video drivers.


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