Is my Cinema Display running in 32-bit color mode?

I'm calibrating my Cinema Display and have read that I should check to see that it is running in full 24- or 32-bit color mode. Can anyone tell me how to do that? Thanks.

Open the Displays pane of System Preferences. If you're given the option to change the monitor's bitdepth, choose at least millions of colors.
(119642)

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New MacBook Air display has same 6 bit color? I bet it does.

Sadly, all we have for color depth in the tech specs is the same old 'support for millions of colors' which we know in the past to have been a total lie. All the laptop displays have been 6 bit color, 262,144 colors, period. A great article on 6 bit versus 8 bit color can be found at:
http://compreviews.about.com/od/multimedia/a/LCDColor.htm
The tech specs for the new laptops don't indicate any improvement.
And yes, the displays use dithering to fake millions of colors. Yes, all displays use mixing of RGB colors to fool the eye into seeing millions of colors. And yes, not one laptop display I am aware of, including PCs, has adequate color depth to allow any real color matching for professional use. Use a high end external display for color matching purposes. CRTs are still considered adequate if not superior for this purpose.

Umm...
Every laptop has 6bit colors. There aren't any 8bit laptop panels that Apple could use infact. Except for some very new 17" ones...
The thing is, 8 bit panels use more power and are regarded by most of the industry as overkill for laptops.
Anyway I repeat, there are no 13" 8bit panels in existence.
You want 8 bit color? Plug in a CinemaHD or a Dell VA or IPS panel.

HT2584 30" Cinema Displays - Running 2

Hi there
I have a Mac Pro 2.93 Ghz Quad-Core Intel Xeon - (4GB-1066 Mhz -DDR3)
Serial Number: J59######4MF
I wish to run 2 - 30" Cinema Displays from my machine - which Graphics Card do I need to order to do the job successfully?
Many thanks
Geoffrey
<Serial Number Edited by Host>

I have a 2010 powermac g5. I have a 30" cinema display. I also have a 42" sony flat screen from 2005-2006 that I have been using as my second monitor. I have the monitor connected via Mini DisplayPort to DVI using a apple adaptor. RecentlyI have been experiencing problems on my flat screen TV. There seems to be a doubling effect along with TV snow on the screen. I tried changing resolutions and nothing happened as well as buying a new adapter.
I know currently I have a Nividia GeForce GT 120 graphics card. Do I need to update the drivers or ge a better graphocs card. By me running dual screens, ( a 30" display and a large flat screen ) is it pushing the card too hard of sorts? Please help !!!
Thank you for any suggestions!

30" Cinema Display running HOT

I have two 30" cinema displays thru a ATI Radeon X1900 XT into a MacPro. Display 1 into monitor port 1 on the MacPro. The monitor is hot (physically) compared 2nd Monitor. Sound familiar?

Did you install the nvidia binary drivers? You'll definitely need to....
Besides that, I think I had to override the refresh rates rates. You can tell if this is necessary by looking at the /var/log/x* log file - see if its tossing out 2560x1600 due to bad refresh rates - if so, set vert to 60hz and increase the horizontal until it stops kicking out the modes.

Display seems like 16 bit color with slight flicker

When I turned my iMac on today, it's like the display color spectrum is on 16 bit color and it has a flicker to it.
This happed all of the sudden.
It's less than a year old.
21" iMac
Intel Core 2 Duo
NVIDIA GeForce 9400
VRAM 256MB
Any ideas?

16bit colour is the default maximum colour depth for RDP connections to a windows terminal server. You can increase this by editing the local group policy object on the windows machine.
Go to start->run and type gpedit.msc
Browse to Computer Configuration/Administrative Template/Windows Components/Terminal Services and edit the "Limit Maximum colour depth properties" key. Set it to enabled and select 24 bit. Click OK close group policy editor. You should now be able to get 24bit colour over RDP connections.

Horizontal shifting bars on MBP 15 after disconnecting 24" LED cinema display and waking up from clamshell mode.

I use my MBP 15 (late 2011) with 24" Apple LED Cinema display in a clamshell mode. After disconnecting external display, and opening display, it shows horizontal shifted bars, so it becomes completely unusable. Have to hard reset laptop. Any hints on how to resolve this? Thanks.

Ok, more information for anyone that might care. The wake-up seems to be the familiar dark wake in order to go into hibernate mode. Except now, it's a death wake. Looking at the logs, I see that it happens exactly 70 minutes after sleeping, even though hibernatemode = 0 (which shouldn't hibernate at all!)
So my power settings look like this:
Currently in use:
standbydelay         4200
standby              1
halfdim              1
hibernatefile        /var/vm/sleepimage
darkwakes            0
gpuswitch            2
disksleep            10
sleep                10
autopoweroffdelay    14400
hibernatemode        0
autopoweroff         1
ttyskeepawake        1
displaysleep         2
acwake               0
lidwake              1
standbymode is 70 minutes, what a coincidence. I'm going to try setting it to 0 and see what that does.

Help needed with gray washed-out looking text on 23HD Cinema Display

My 23 inch HD Cinema Display running on an ATI X800 is plenty capable of displaying nice deep dark blacks in graphics and photos, but text on screen seems to me to be very gray or washed out, even "thin" looking. I've set my color preference for high gamma, but while a bit better still no joy. I have the brightness 4 full clicks down from full (and it's still plenty bright)...
Is this normal for this screen or are there steps I could take for better appearing text without messing up graphic & photo elements?
Sorry if this has been asked & answered before; a quick search here didn't turn up any good matches.

Launch the "Digital Color Meter", set the aperture size to 1 pixel and drag your cursor over some text. You will see that text is not displayed in "pure black" but in shades of grey with a lot of colored highlights. In order to get the best performance out of your display, you really need to calibrate it. There are a lot of "shades of grey" between black and white. For the very best results, you need to use a colorimeter. The Spyder2 for example, runs through the entire range of greys as well as RG&B. After using one of these or a similar unit, you will be much happier with your display in general and specifically, in it's ability to display text. You might get OK results using OS X's "expert mode" calibration tool but it's much more subjective and therefore not nearly as accurate.

Disconnecting Cinema Display Leaves Windows Stranded on Laptop

Dear All,
I use a 17" PowerBook with a newly purchased 20" Cinema Display in dual screen (non-mirroring mode) at work and just the laptop at home. The CInema Display is set as the primary monitor.
Using Excel in dual screen mode before leaving work on Thursday, I had a spreadsheet open on the laptop (secondary) screen. I disconnected everything and went home. Now, with only the laptop, that spreadsheet is inaccessible. It's open and, by using Expose I can see it, but when I pick it, it just slides off the screen.
Is there any way to get it back?
I'm figuring when I get to work I'll be able to get it. And I also assume that I should have probably gone through a "detect displays" sequence after disconnecting (although that's not working now). Maybe using the laptop as the primary display is the secret as well. However, it would be nice to be able to get it now.
Incidentally, I do not find Apple's dual screen setup very elegant. Having the main menu only at the top of the primary screen means a lot of mouse movement when using the secondary screen. In addition, when I use right click menus on some secondary screen programs, they appear on the primary screen.
Thanks for the help... Jim
PS - For those who saw my post on another forum about a window too large to access, it is not related to the dual screen. It is running on a different system without the dual screen although I tried using the larger dual screen to acces it (unsuccessfully).

Open the Script Editor in the /Applications/AppleScript/ folder and run the following:
tell application "Microsoft Excel"
set bounds of window 1 to {61, 95, 465, 313}
end tell
Insert the application's name in the first line inside the quote marks, press the Run button, and then resize the window. Close all open documents in Excel which you can see. This script may not work for all applications.
(15605)

Problem w/ two 27" LED Cinema Displays on ATI 5770 MacPro

Attempting to connect a second display to a mid 2010 Mac Pro. There are two mini-ports + a DVI on the 5770 card. Currently I have a single 27" LED connected using one of the mini ports. The computer isn't recognizing the second monitor in the other mini port. I used to have an older 24" LCD Cinema display running successfully, using the DVI port on card with a powered adapter. That configuration isn't doable with a newer 27" given the output from it (not the older style video cabling, but rather the mini display port. Would appreciate any suggestions on how to get the two 27" monitors running together.

Hey turbostar, finally a chance to get back to you, sorry about the delay.
I had already tried both ports with no success on the second monitor, but when I moved the primary monitor to the second port and it worked... it it got me to thinking maybe the power outlet was bad if not the monitor itself. Indeed that was the issue. The second monitor was plugged into a power strip in which one of the six outlets on it was not working. Replaced the surge power strip with a new one and all is good.
Thank you for your time and help.

Apple Cinema Display 23" brightness issue while using with Microsoft Vista

Hello there,
I have the following issue and was wondering if someone has an idea what the reason is or what can I do to fix this:
I have a 23" Apple Cinema Display running with a MacPro 2,8 GHz. When I switch to PC using BootCamp 2.1 with Windows Vista Service Pack 1 32bit the screen becomes extremely dark.
At first, on the PC side, the display has the correct brightness but after two seconds it switches to a very low brightness setting.
When I go back to the Mac side the brightness setting on my Cinema Display has changed to the lowest point.
I also have a MacBookPro, with Microsoft XP installed also using BootCamp (I cannot find the version of this Boot Camp, but it is an earlier version) to change to PC. In XP, there is a driver installed that allows me to use a slider on the PC to control the monitor brightness. But with Vista this slider is nonexistent.
I already tried changing the graphic's card NVIDIA 8800 driver to see if I can manipulate the brightness on the monitor. I realized there is brigthness slider on the Nvidia driver, but when you make brighter, the colors just get messed up, and the brightness stays as dark as before.
We have lately upgraded to Snow Leopard and had installed Spyder on the Mac side to create a monitor profile for the Cinema Display. I already deleted the profile to see if there is a change. Nothing. I already went back in time on my PC (Restore Point), also nothing.
Could I download a driver for Vista, so that I have a brightness slider on the PC side, so that I can adequately change the brightness to its correct setting.
It is amazing how the lack of correct brightness in a monitor, can ruin your entire working day! Very frustrating!
It would be greatly appreciated if someone has a solution for this issue! Thanks a lot!
Emil

Okay, I came across a thread that implies there is a problem with using the Apple ADC-to-DVI adapter to attach the older "acrylic" 23" Cinema Display to a Mac Pro DVI graphics card. Basically, the workaround is to NOT use the USB part of the adapter (disconnect it).
1) In OS X, set the desired display brightness.
2) Disconnect the USB cable coming from the converter to the Mac.
3) Restart into Windows.
The brightness setting should now remain as it was under OS X.
Confirmed to work on my Mac Pro v1,1 (dual 2.66 Core 2 Duo) with nVidia GeForce 7300 GT video card running Windows 7 x64.
Link here: <http://forums.macrumors.com/showthread.php?t=790910> for credit to resolution.
Of course, you lose the functionality of the 2-port built-in USB hub in the Cinema Display, but an external USB hub can make up for that.

MBA, 24" Cinema Display, & USB Ethernet Adaptor

I'm considering getting a MBA, however, I don't want to have to run it on wireless at home. Will the built in USB hub in the 24" Cinema Display run the SuperDrive and the USB Ethernet Adaptor?

SuperDrive
Probably not. That drive requires more power than a regular USB 2.0 port supplies and isn't compatible with other Mac models.
USB Ethernet Adaptor
Yes.
(41492)

27" Cinema Display & 17" Macbook Pro not calibrating correctly

I've had my 17" macbook pro hooked up to a 27" viewsonic LCD monitor for about a year. The colors have never been right, as many times that I tried calabrating them through the built in Apple calabration system, or if I use my X-rite I1Disply 2. Today, I bit the bullet and bought the 27" Apple Cinema Display and nothing changed, the colors are still off. The monitor looks slightly warmer than the laptop. I'm a wedding photographer, so it can be frustrating not being able to use the bigger monitor to edit. Thanks in advance for you help...

Would changing the contrast help? I don't know, I'm just asking, because there is a contrast control in the Universal Access preferences Seeing tab.

Cannot get my 30" cinema display to come on after power outage

I have a 30" cinema display running with my 2010 mac pro...all was fine, then we had a power outage last night. When I started the computer the next morning, computer came on but no monitor. So I took the display to apple store and they started on a mac book pro , no problem. When I went home and hooked everything back up to my mac pro, the 30" display will not work but a 20" cinema display I have did. Very confusing
Please help if anyone can
thanks

The 30" cinema display has a cable that accepts inputs from its custom power brick, a Dual-Link DVI, a USB-2, and a FireWire-400.
For a Silver Tower Mac Pro, you must connect the power and Dual-Link DVI.
USB is needed by the display (for Brightness and possibly other controls from the Mac), and to run the convenience USB ports if desired.
NB> Keyboards connected through the USB hub on the display cannot generate "snag key" codes early enough to be used at Startup. If you need to Option-Boot, you will need to plug your keyboard directly into a USB on the chassis.
You need not connect FireWire unless you wish to use the hub and convenience ports on the display. It may require a FireWire 800 to 400 cable or adapter. (The adapter is good to place permanently, and its length (short) is good. For any other use, these adapters seem to "grow legs and walk away", so an adapter cable is superior.

Does 23" Apple Cinema Display support sAdobe Color Profile?

i was told the 23" Apple Cinema display does not support sAdobe color profile, can anyone confirm if does or not, thank.

I take it back. NEC sell a monitor that acheives 107% of the Adobe Color Space.
http://www.necdisplay.com/Products/Series/?series=800fe9d4-c3a9-410a-98ee-6f546c e833d4
NEC seem to be a leader in this regard.
http://www.nec.co.jp/techrep/en/journal/g06/n03/060316.html

How do I find wether Solaris 8 is running in 32 bit or 64 bit kernel mode

I have some questions
1)Ho do I know wether solaris 8 is running in 32 bit kernel mode or 64 bit kernel mode.
2)Is there any way that we can switch between 32 bit and 64 bit without reinstalling the OS.?
3)Does the SunLink OSI 8.1.1 work with solaris 8(32 bit kernel mode) without any patch. If any patch required , can you tell me the patch that i need to install.
Thanking in anticipation

Hi,
To find out wheter 32 or 63-bit mode
# /usr/bin/isainfo -kv
Now, switching between modes
32-bit mode
# eeprom boot-file=kernel/unix
64-bit mode
# eeprom boot-file=kernel/sparcv9/unix
or OK prompt,
32-bits mode
boot kernel/unix
64-bit mode
boot kernel/sparcv9/unix
or even,
32-bit mode
setenv boot-file kernel/unix
64-bit-mode
setenv boot-file kernel/sparcv9/unix
Arrebola

Is my Cinema Display running in 32-bit color mode?

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