Dell U2212HM Monitor - Manual (Page 36)

If either VGA or DVI-D or DP input is selected and both VGA and DVI-D cables are not connected, a floating dialog box as shown below appears.
or or
See Solving Problems for more information.
Setting the Maximum Resolution
To set the Maximum resolution for the monitor:
U2212HM
Windows XP:
1. Right-click on the desktop and select Properties.
2. Select the Settings tab.
3. Set the screen resolution to 1920 x 1080.
4. Click OK.
Windows Vista ® or Windows ® 7:
1. Right-click on the desktop and select Personalization.
2. Click Change Display Settings.
3. Move the slider-bar to the right by pressing and holding left-mouse button and adjust the screen resolution to 1920 x 1080.
4. Click OK.
If you do not see 1920 x 1080 as an option, you may need to update your graphics driver. Depending on your computer, complete one of the following procedures:
If you have a Dell desktop or portable computer:
Go to support.dell.com , enter your service tag, and download the latest driver for your graphics card.
If you are using a non-Dell computer (portable or desktop):
Go to the support site for your computer and download the latest graphic drivers.
Go to your graphics card website and download the latest graphic drivers.
Using the Dell Soundbar (Optional)