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Is Monitor Spanning Possible on an iBook?
bcassell asks: "I just recently (a few days ago) purchased an iBook. It's the base model (600mhz, 12" screen). After playing with it for a while I decided to plug it into my nice 21" Dell CRT, only to find that the iBook ONLY supports display mirroring (so I'm stuck at 1024x768). Well, knowing that the video card in my iBook is an ATI Radeon mobility which, by ATI's specs, supports monitor spanning, I decided to do some research. I found several discussions about the subject, and one person who even claimed to have monitor spanning working on his iBook in Mac OS 9. So does anyone know of a way to get monitor spanning to work on an iBook in Mac OS X? Or, if not, where would a very proficient coder/hacker like myself, who has very little Mac OS X experience, find information to attempt a hack like this?"
I came across the same info myself- same chip as in older PowerBooks which had the ability to monitor-span. I've a feeling that it's disabled as a part of the driver- to give people a reason to get a PB over an iBook, I suppose.
:)
To get it to work with the iBook, I imagine you'd have to write a new driver for OS X. Perhaps the ATI 128 driver from Linux and docs from ATI (specs) and Apple (DDK, monitors-api for OS X) should be enough? Apple may have done something to disable this feature on the chip itself, or perhaps in OpenFirmware, but I pray that it's just an issue of drivers.
Can Linux/X11 use monitor spanning on a PowerBook with the same chip as in the iBook? If that's the case, perhaps the next step to determine if it's just a gimpy driver in OS X or something in HW/firmware would be to see if the same technique to get dual-head setup for a PowerBook works for the iBook with the same gfx chipset.
Many iBook owners will be forever in your debt if you got this to work. Myself included, at least until I sell my iBook to get an OQO for running Dynapad.
Working toward a usable PDA environment in the spirit of Newton OS: Dynapad
Apple seems to have made the consumer models non-spanning (imac,emac, ibook). If you look at the specs of the models on apple's web page it says mirroring only.
IThe ibook doesn't allow spanning AND you can't increase the resolution on an external monitor past what the ibooks flat panel is. It's a great little portable machine, but lowsy if you can only run the 19"inch monitor at the same resolution as the flat panel.
I like apple, but intentionally hobbling there machines like this is inexcusable. I won't buy a new one until they change there ways.
Copy the drivers, first, in OS X.
Then boot into console mode. Single user, as it were.
Back up the originals, then copy over with the PowerBook drivers.
I imagine this would work.
If it doesn't, I guess you reinstall OS X?
GPL Deconstructed
Has anyone tried the OSX version of SwitchRes? No guarantees but it fixes a number of OSX video settings "features".
...and my time is worth more than my money.
...says the man who's sitting around posting on Slashdot.....
Hey Taco! Looks like you're using the "infinite monkeys and typewriters" scheme to generate Ask Slashdots again...
There are a lot of people criticizing Apple for purposefully limiting this feature. To these people I would point out the fact that Apple isn't the only company to do this. For example, processor companies sell thousands of chips that are identical, except for their clockrate. Many processor batches are so stable that they can be turned into whatever people will pay for. In fact, Intel used to take a batch of Pentium 2 chips, give half of them half as much L2 cache, and sell them as Celerons. At heart, however, they were still just Pentium 2s.
Apple's no better than the rest of the industry, but they certainly aren't any worse.