Max resolution is 1400 pixels on a 27" iMac?

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Max resolution is 1400 pixels on a 27" iMac?

I have a 3.4 GHz Intel Core i7 27-inch (Mid 2011) iMac with AMD Radeon HD 6970M graphics card.

Installed Windows 7 via Boot Camp, and the maximum resolution I can select in Windows Displays control panel is 1400 pixels wide (forget the height). On the Mac side it's 2560x1440! It looks terrible on the Windows side.

Granted, I installed the 32-bit version of Windows 7. I'm looking to see if I can get the 64-bit version instead. In the mean time, anyone know if the 64-bit version will fix this issue? Are Apple's 32-bit Win7 display drivers simply outdated? Or is there some other solution here?

Or am I stuck with a crappy resolution? Even my old 20" iMac from 2007 had much better resolution than this on the Windows side!

iMac, Mac OS X (10.7.4)

Posted on Dec 20, 2012 12:39 PM

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Answer 1

mende1

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Dec 20, 2012 12:42 PM in response to CSHSDude

You have to install Boot Camp drivers. Microsoft doesn't include drivers for your graphic card, so you're using a basic graphic driver. See > http://support.apple.com/kb/HT4407 (this applies to all Macs without the SuperDrive or with OS X Mountain Lion or Lion)

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Answer 2

CSHSDude Author

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Dec 20, 2012 12:43 PM in response to mende1

Yep, I did install the boot camp drivers (as evidenced by the fact that I was able to use "Boot Camp" control panel to boot back into Mac OS X.) Maybe the graphics driver didn't install or something?

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Answer 3

mende1

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Dec 20, 2012 12:47 PM in response to CSHSDude

You can try to install the most recent driver from ATI website > http://support.amd.com/us/gpudownload/windows/Pages/radeonmob_win7-32.aspx

In general, I recommend the 64-bit Windows edition because the performance will be increased and it will use all the hardware. For example, 32-bit Windows can't use 4 GB of RAM

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Answer 4

CSHSDude Author

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Dec 20, 2012 1:31 PM in response to mende1

I figured it out. I had an external display (Dell monitor) connected, which must have been limiting my maximum resolution. Apparently, unlike Mac, on Windows the pixels must be the same height across all displays. That's my guess anyway. As soon as I unplugged that display, POOF, it jumps up to the proper resolution.

Thanks for the help though mende1!

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Answer 5

mende1

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Dec 20, 2012 1:32 PM in response to CSHSDude

You are welcome

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Answer 6

Csound1

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Dec 20, 2012 1:45 PM in response to CSHSDude

CSHSDude wrote:

I figured it out. I had an external display (Dell monitor) connected, which must have been limiting my maximum resolution. Apparently, unlike Mac, on Windows the pixels must be the same height across all displays. That's my guess anyway. As soon as I unplugged that display, POOF, it jumps up to the proper resolution.

That will depend on whether the displays are extended, or mirrored.

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