How to reset screen resolution?

Mercuric Oxide · Mar 1, 2008, 04:18 PM

I hooked up my MP to an HDtv and chose an incompatible resolution. Now the tv says incompatible signal and won't fix upon restart.

I tried resetting pram, but that doesn't work.

Any suggestions?

AppleNewton · Mar 1, 2008, 08:06 PM

Quote:

Originally Posted by Mercuric Oxide

I hooked up my MP to an HDtv and chose an incompatible resolution. Now the tv says incompatible signal and won't fix upon restart.

I tried resetting pram, but that doesn't work.

Any suggestions?

yeah that can happen sometimes as the HDTV doesnt sync right to the graphics card.

try restarting the MacPro and holding down the shift key for a safemode boot.

change the resolution to a working available one, reboot and see if it can display the chosen resolution then select a compatible res.

this happened to me with my hdtv i got and hooke dit up.

goodluck.

Mercuric Oxide · Mar 1, 2008, 09:24 PM

it worked, thanks a lot!

Ivor · Jan 6, 2009, 02:09 PM

In case you have two users in one mac and one of them can not change resolution back to normal try coping file named: user/library/preferences/by Host/com.apple.preference.displays.___.plist (where ___ is your Mac specific) from user with correct settings to the user with wrong settings. Then restart your Mac.
Helped for me. MacMini 10.4.11 and Sharp LCD TV 1024x768 native PC resolution.

Meep · Jan 6, 2009, 05:11 PM

I think this is one area that apple really does fail on, it would be alot better if they included a feature like the one in Windows where if you don't click accept it resorts to the original setting after 15 seconds.

Raygan · Sep 20, 2009, 03:29 PM

Quote:

Originally Posted by Ivor

In case you have two users in one mac and one of them can not change resolution back to normal try coping file named: user/library/preferences/by Host/com.apple.preference.displays.___.plist (where ___ is your Mac specific) from user with correct settings to the user with wrong settings. Then restart your Mac.
Helped for me. MacMini 10.4.11 and Sharp LCD TV 1024x768 native PC resolution.

You may also need to copy com.apple.windowserver.___.plist.

Mar 1, 2008, 04:18 PM	#1
Mercuric Oxide macrumors 6502 Join Date: Jan 2008 Location: NYC	How to reset screen resolution? I hooked up my MP to an HDtv and chose an incompatible resolution. Now the tv says incompatible signal and won't fix upon restart. I tried resetting pram, but that doesn't work. Any suggestions?
	0

Jan 6, 2009, 02:09 PM	#4
Ivor macrumors newbie Join Date: Jan 2009	Another hint regarding wrong resolution In case you have two users in one mac and one of them can not change resolution back to normal try coping file named: user/library/preferences/by Host/com.apple.preference.displays.___.plist (where ___ is your Mac specific) from user with correct settings to the user with wrong settings. Then restart your Mac. Helped for me. MacMini 10.4.11 and Sharp LCD TV 1024x768 native PC resolution.
	0

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Mar 1, 2008, 09:24 PM	#3
Mercuric Oxide Thread Starter macrumors 6502 Join Date: Jan 2008 Location: NYC	it worked, thanks a lot!
	0

Jan 6, 2009, 05:11 PM	#5
Meep macrumors member Join Date: Feb 2008 Location: UK	I think this is one area that apple really does fail on, it would be alot better if they included a feature like the one in Windows where if you don't click accept it resorts to the original setting after 15 seconds.
	0