Luminous Landscape Forum

Raw & Post Processing, Printing => Adobe Lightroom Q&A => Topic started by: joncanfield on May 15, 2009, 10:27:13 am

Title: No 64-bit option with LR on a Mac
Post by: joncanfield on May 15, 2009, 10:27:13 am

I've been asked by someone about a problem with Lightroom 2.3. They don't have the 32-bit checkbox when they choose Get Info, so there's no way to select whether to run in 32-bit or 64-bit mode. They're on a Mac.
I haven't seen this on any other Mac systems - anyone else, and if so, have you found a solution?

Thanks,
Jon

Title: No 64-bit option with LR on a Mac
Post by: francois on May 15, 2009, 11:36:20 am

Quote from: joncanfield

I've been asked by someone about a problem with Lightroom 2.3. They don't have the 32-bit checkbox when they choose Get Info, so there's no way to select whether to run in 32-bit or 64-bit mode. They're on a Mac.
I haven't seen this on any other Mac systems - anyone else, and if so, have you found a solution?

Thanks,
Jon

I believe that Lightroom can run in 64-bit mode on Intel poweerd Macs only. On my old dual G5, there's no 32-bit checkbox.

Title: No 64-bit option with LR on a Mac
Post by: Schewe on May 15, 2009, 12:08:21 pm

Quote from: francois

I believe that Lightroom can run in 64-bit mode on Intel poweerd Macs only.

Yes...and under Leopard (10.5+) only as well...

Title: No 64-bit option with LR on a Mac
Post by: joncanfield on May 15, 2009, 06:32:09 pm

Thanks Francois & Jeff, I'll check on the Intel side, I know he's on 10.5.x

Jon

Title: No 64-bit option with LR on a Mac
Post by: Ian Lyons on May 16, 2009, 04:36:32 pm

Not all Intel processors used by Apple are 64-bit. For example, the Intel processors used in the early MacBook, MacBook Pro iMac and Mac Mini  used Intel Core Duo processors, which were 32-bit. The Core 2 Duo and subsequent Intel processors are required for 64-bit support.