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I think that Apple states that Windows may be installed on the Retina 5K, but will there be a problem with drivers?
More importantly, will Windows drivers be in conflict with Apple's proprietary Timing Controller they've announced for this computer?
I received a 5k retina iMac today and immediately setup Windows 8.1 using the built in Bootcamp process. NO snags installing, NO driver/exclamation marks, NO lockups. Audio, Bluetooth (kb/mouse) and Network (wired/wireless) works in Win 8.1.
BOTH operating systems have the same HUGE (for me!) issue. **No 5k resolution option, so I cannot maximize the real estate**
OSX:
Windows: Allows for a native resolution setting of 4k 3840x2160.
Updating the ATI catalyst software pack from the version shipped to the latest October beta had no effect.
Thanks for the advise. But it is still not working.
All not working. Can't think of any other ways to solve this. Very frustrating.
From https://www.ifixit.com/Teardown/iMac+Intel+27-Inch+Retina+5K+Display+Teardown/30 260
It uses a AMD Radeon R9 M290X GPU. If AMD will release a Windows driver/or Bootcamp will contain one you should not be overly concerned.
The ifixit video was fascinating, but it had nothing to do with my question.
So, the Boot Camp partition contains video drivers other than those that the Windows installation contains??
As you say, if AMD would release a specific "IMac Retina 5K" driver, I'd not be worried, but, with neither an announcement nor an assurance of such a driver, I posted my still-answered question. And I'd still like to know if display drivers have to interact with the Timing Controller. I'm guessing they don't, at least on Windows.PCs, as the drivers released by the manufacturers, both nVidia and AMD, are hardware-independent other than in their "bitness." I'm therefore not very concerned about the TCon, but the other question is important as I don't think there are any video cards currently claiming to be capable of driving a 5120 x 2880 display, and before I spend $3,100, I'd love to know the answers to ALL these questions.
I just successfully installed Windows 8.1 Update 1 on BootCamp on Mac OS X Yosemite. Here is a step by step I just wrote, hope it helps y'all:
How to successfully install Windows 8, or above, on Mac OS X Mavericks or above:
Requirements:
1- Windows OS ISO Image file
2- An 8GBs USB Flash Drive
3- A good Internet connection as you will need to download the Windows compatible drivers for your Mac
Steps:
1- Open up Disk Utility and create an additional partition for Windows formatted as ExFat. 100GBs, or above, is recommended as update to the operating system, as well as Apps requiere space on your HD or SSD [This step can be done during Mac OS X's installation process]
2- Open up BootCamp Assistant
3- Make sure only the 'Create a Windows 7 or later version install disk' is checked and your USB Flash Drive plugged in and click 'Continue'
4- Click 'Choose' and select your Windows ISO Image file
5- Select the USB Flash Drive you will be using during the installation process and click continue to confirm
6- Once done, restart your Mac and hold down the 'alt/option' key on your keyboard to bring up the Boot Menu
7- Select the USB Flash Drive named Windows, not the UEFI Boot
8- Install Windows as you normally would
* Remember to press and hold the 'alt/option' key, and select the Windows Partition, whenever the installation process requires your Mac to restart
* http://msdn.microsoft.com/en-us/library/windows/apps/jj945423.aspx
* http://windows.microsoft.com/en-us/windows-8/install-windows-on-mac
I do not have a tested 5K/Bootcamp configuration (even though I wish I did 😉). There have been reports of issues with the cylinder MacPro with AMD GPUs, so I expect some driver issues. The current drivers do not support the full 5K for Windows, but OSX can get 5K (with the Apple TCON) out of the GPU.
There's no contradiction. The resolution of the display is, indeed, 5120 x 2880. It's just that the Windows OS, & certainly the latest Catalyst drivers, max out at 4K. As I suspected when I posted the original question, there is a problem with the display drivers in Windows under Boot Camp. Fortunately, that problem turns out to be almost trivial. We'll have to be satisfied with Boot Camp Windows at 4K rather than the monitor's native resolution of"5K." I feared that there would be no Windows driver that could cope with the 5K display at all. That turns out not to be the case. As yet, there's not a driver that can utilize the full capabilities of the hardware, but I can't imagine anyone having a problem with Windows at 4K (unless the display looks strange at a resolution litter than its native one).
This is confusing...
BOTH operating systems have the same HUGE (for me!) issue. **No 5k resolution option, so I cannot maximize the real estate**
OS X should support 5K, even if Windows goes up to 4K.
Yeah, I certainly didn't expect the Yosemite resolution to be less than 5K. I'd have thought that Apple would have had to truthfully disclose the fact that even the machine's native OS couldn't deliver the advertised, claimed spec if that were true -- i.e., I suspect that OS X Yosemite can, in fact, display at 5120 x 2880. I think it's more likely that there's a glitch in y2kpc's setup. He was kind enough to include Windows screenshots, but I see none from the Mac yet. I remain unconvinced that Yosemite's resolution can't get to 5K.
I do not want to hijack this thread from milleron but can I ask you to post the output of the following two commands (from OS X Terminal) on the other thread from your 5K?
diskutil list
diskutil cs list
On my Retina iMac, selecting "Best for Display" just forces the middle selection titled Best (Retina). The text below the monitor then changes to "Looks like 2560x1440".
I would be absolutely furious if I upgraded from an iMac 27" at 2560x1440 to this Retina 5K iMac, and found out that I could not use the extra pixels to fit twice as many icons / windows in one screen.
You should be getting 5K when you select "Best for display" rather than "scaled." Unfortunately, if this is like the Retina displays on MacBook Pros, selecting that option (or "Best (Retina)" under "Scaled") does not display any resolution information. You just assume that it's the maximum resolution of the hardware. What you do actually know from that screen is that 3200 x 1800 is NOT the maximum resolution you can achieve but is much less. When I select that "More Space" option on my MacBook Pro Retina, it states that the resolution is "1680 x 1050." That's about 65% of this screens vertical resolution. If 1800 is about 65% of yours, then your maximum resolution is about 2800 vertical -- just what you were promised and sold. Take a few deep breaths and chill.
Clearly, regardless of resolution, putting twice as many icons in the same 27" diagonal screen will make them half as large. But if you just wanted smaller icons, you could do that on your current Mac -- just right-click a blank area on the desktop, select "view options" from the menu, and change the size of your icons to almost whatever you want.
As I understand it, given that the display area is identical to the 2013 27" iMac, the desktop will look almost identical -- the size of screen elements should be about the same as always. There will just be a much higher resolution -- no jagged lines that are supposed to be straight or smoothly curved, better rendering of small font sizes, more vivid detail in photos, etc. You'll still be able to adjust the size of those screen elements to your liking.
Can you please send correct links for the 4 driver images? None of them work.
I have an iMac 5K arriving in a few days with the upgraded R295X.
What resolution does a site as http://www.tracemyip.org report?
fredz85,
I did not use any of the driver links (apple bootcamp handled that for me-everything worked). While trying to get full 5k resolution support, I then updated the ATI catalyst package after I was already in Windows to the latest shipping release, and then to the latest beta. Neither succeeded in adding the 5k support.
I ran the tracemyip.org report that you requested:
2560x1440 - Safari & Firefox browser set to "best for display"
3200x1800 - Safari & Firefox set to "more space" (maximum on slider)
3840x2160 - Windows IE & Firefox set to highest selectable resolution 3840x2160 (maximum on slider)
I downloaded a free 5k wallpaper: http://wallpapers-start.com/view/Bridge-Golden-Gate_5120x2880.html
The OS X viewer program lets me open it in a partial window or maximize it to full screen (removing all icons/toolsbars). the viewer opens with a handy selection tool. If I drag a selection box of the entire photo, it does show the full 5120x2880 resolution whether maximized to full screen or using a partial screen window. I almost believed that I was viewing it in 1:1 pixel mapping, or full 5k resolution. But, when I redraw the selection box which starts at 0 pixels horizontal, it reports in multiples of two. 0,2,4,6,8,10, all the way up to 5120. same thing horizontally. sometimes going backwards it reported even numbers but still always counts as two. So it seems to open 5k content, allow it to be maximized, but really cut the resolution in half horizontally and half vertically before displaying.
As a more basic test, when I right click on the desktop and pick show view options, it lets me resize desktop icons... in multiples of two pixels at a time only.
So I am convinced that with the 5K iMac Retina, Apple is using 15.7 million raw pixels (5k) in the "background", but:
only allows 3.68 Million unique/addressable pixels in OS X (2560x1440/Retina)
only allows 5.76 Million unique/addressable pixels in OS X (3200x1800)
only allows 8.29 Million unique/addressable pixels in Windows/Bootcamp (3840x2160)
Perhaps someone better trained than me can generate a 5120x2880 "iso test pattern", (or even use photoshop) to prove how many individual pixels the OS allows it to address show horizontally/vertically. I may start a thread in the iMac forum because this one was originally devoted to a bootcamp issue...
Is it possible this is how Apple got around the maximum bandwidth limitation of display port which isn't high enough for 5k?
Other forums speculated that Apple overclocked the display port chain, or built their own proprietary controller. If they did this by blocking the higher resolutions, that may explain that with this Retina 5K model, they removed the ability to allow this iMac to be used as an external display....
The Dell 5K monitor, shipping later this year, uses the identical LG panel as the Retina 5k ifixit teardown, but Dell will require two separate display port cable connections. With the Dell, Windows will definitely allow the full 5120x2880 to be used.
Boot Camp on iMac Retina 5K?
