[X4U] Force PB17" external projector/display to 1024x768.

[Robert Tillyard]

The only resolutions available on the PB display are 640x480->1440x900. 
If I set 1140x900 or 1024x768 then plug in the projector the projector 
shows as 800x600 (or in prefs 640x480 is available). If I mirror the 
PowerBook display changes to a 800x600 viewport on a black background.

I think that if the projector is telling OS X that it can only do 
800x600 then Display Preferences will not list any other resolutions 
(I'm sure it used to if you ticked an option to show unsupported 
resolutions).

I think we may have to buy a new projector at some time. But for my 
demo later I'm just going to have to see if I can get my fonts small 
enough for 800x600, if not I'll have to use a PC (arrrggggghhh... 
Noooooo...).

Thanks for your help, regards, Rob.


On 18 Apr 2005, at 21:16, James S Jones wrote:

> The listing for that projector on projector central says the native 
> resolution is 800x600, with a maximum of 1280x1024. I'd assume that 
> would be at 60Hz, since it's LCD. What happens if you set the PB to 
> 1280x1024, thousands of colors and mirror to the projector?
>
> On Apr 18, 2005, at 12:25 PM, Robert Tillyard wrote:
>
>> Yes, I have done Detect Displays, it gives the same two resolutions.
>>
>> If I set the PB screen up to 1024x768 then do mirror I get an 800x600 
>> window in the middle of the screen. The projector is set-up as Auto 
>> (other options are VGA400, VGA, SVGA and XGA) if I set the projector 
>> up to SVGA the do detect displays it changes the projector back to 
>> Auto.
>>
>> I thought there might be a way to tell Display Preferences to use a 
>> resolution it doesn't detect, I thought that an older version of OS X 
>> had a "Show All" modes option but I can't see that on 10.3.9.