LED 24in Display resolution stuck at 640X480

If anyone has their 24in led display with a resolution set at 640X480 unplug it from power and computer for a minute, then everything will back to normal.
Message was edited by: Jaxsin43

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OSX Maverick iMac Resolution: stuck at 640x480. How do I fix this?

This is my iMac:
- 21.5 inch
- late 2012
- 2.9 Ghz Intel Core i5
- NVIDIA GeForce GT 650M 512MB
- OSX 10.9.2
After updating to Mavericks, the screen resolution somehow got stuck at 640x480 and I'm unable to change it. Going into display settings and holding down the "options" key, does not show ANY display resolution options (see image attached). Any ideas on how to fix this?

Please read this whole message before doing anything.
This procedure is a test, not a solution. Don’t be disappointed when you find that nothing has changed after you complete it.
Step 1
The purpose of this step is to determine whether the problem is localized to your user account.
Enable guest logins* and log in as Guest. Don't use the Safari-only “Guest User” login created by “Find My Mac.”
While logged in as Guest, you won’t have access to any of your personal files or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.
Test while logged in as Guest. Same problem?
After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.
*Note: If you’ve activated “Find My Mac” or FileVault, then you can’t enable the Guest account. The “Guest User” login created by “Find My Mac” is not the same. Create a new account in which to test, and delete it, including its home folder, after testing.
Step 2
The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a Fusion Drive or a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of Steps 1 and 2.

Display resolution stuck

The display is stuck on 640 X 480.
When I switch it it goes back when I open anything.

OK. It was a guess anyway.
I changed my screen resolution and then did a search of system files to see what was changed today.
I sorted by descending date/time and that file was at the top of the list.
I opened it with the Property List Editor program and saw it contained the changed resolution, so I took a guess that deleting that file and rebooting would set you straight.
You might look for recently changed files with likely names in your personal settings folder:
~/library/preferences
and try deleting and re-logon (you don't need to restart if you're only changing your own files - a re-logon picks up the change)
Sorry - I don't have a better guess. Good luck

S10 screen resolution stuck on 640x480

subject describes the problem... had to reformat drive and reinstall xppro sp2 (dl'ing sp3 to install now)... I'm guessing I'm shy a driver or two.. bit in display properties, the slider won't budge and of course it looks nasty... I'm sure it's a simple fix- but I'm having a bad brain day... anyone care to help those cursed w/crerebral flatulence??

hi fordjr1,
Welcome to Lenovo Community Forums!
Please try downloading this and installing it in your Lenovo S10
Intel Display Driver
This is the Graphics driver for your system running WIndows xp pro.
Hope this helps
Cheers!
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MBP 15' 2011 Mini display port to LED monitor/TV resolution issue

Hello,
I have just bought a Mini Display - VGA adaptor which I am plugging to a Samsung 23' LED monitor via a VGA/DVI adaptor. I manage to get a clone view but unfortunately, the maximum resolution offered is 1650x1050 when my Samsung LED monitor has resolution of 1920x1080. Therefore, part of the screen remains black.
... also, when I plug the Mini display port to VGA to my Philips 47' VGA port, I got a message that there must be a problem with the connection and again, maximum resolution offered if 1440x10.. and therefore 20% of my TV screen space remains black.
At last, when I launch Windows7 via bootcamp, this is even wost : when I select the max resolution (1440x10..), the pictures remains freezed on my TV and I can't even move the mouse (while the mouse is moving on the MBP screen...). Only coming back to a very small resolution 800x600 or so will enable me to get control of the win7 desktop on my TV...
Thank you in advance for your help
Greg

I have just bought a Mini Display - VGA adaptor which I am plugging to a Samsung 23' LED monitor via a VGA/DVI adaptor. I manage to get a clone view but unfortunately, the maximum resolution offered is 1650x1050 when my Samsung LED monitor has resolution of 1920x1080. Therefore, part of the screen remains black.
If you are using the monitor in Mirrored mode, its resolution setting will always be exactly the same as that of the built-in display. I presume you have the high-res 15" MBP display, with a native resolution of 1680 x 1050. If that's true, I suspect your monitor is indeed in Mirrored mode, and that's why you can't set the monitor to its native 1920 x 1080 resolution. If you press Command+F1 to toggle the mnitor into Extended Desktop mode, you'll be able to set its resolution independently of the built-in display. Or if you use only the external monitor, with the MBP display closed, you'll be able to set the monitor's resolution to whatever it supports.
http://support.apple.com/kb/HT3131
Stacking one video adapter on top of another is usually a recipe for trouble. It's always best to keep things as simple as possible. Use one adapter that gets you from mini-Displayport to whatever input you want to use on the TV or monitor.

Why does my 27" LED Cinema Display only display maximum resolution of 1920x1200, when my Mid 2009 13" MBP says it supports up to 2560x1600?

When I have my MBP connected to my 27" LED Cinema Display, my display settings only show a maximum resolution of 1920x1200, when the specs on both my MBP and Display say they they support up to 2560x1600? Am I missing something?

I finally decided to just take my MBP down to the Apple store and see what would happen if I connected it to one of their new ACDs. At 1st, the guy at the Genius Bar told me that my MBP only supported 1280x800 as a maximum resolution. I told him that was for my MBP screen, and not an external monitor. Finally I convinced him to let me connect my MBP to one of their monitors. Low and behold, looking at the Display settings pane I saw some addtional resolutions, including 2560x1600!
So, now I have confirmed that my MBP can drive an external monitor to a resolution of 2560x1600, using just the single mini displayport connection. I just have to figure out what's wrong with my ACD. Suspecting that my older ACD might not support this higher resolution, I did finally discover that my model only supports a maximum resolution of 1920x1600.
Sorry for all the confusion...

640x480 Display Resolution when installing Tiger... which is NUTS!

I bought a ViewSonic 22" Pro Series Display about a year ago, and when I went to upgrade to Tiger 10.4.x today, the desktop display windows and icons were SO HUGE that I almost couldn't access the buttons on the installation disc windows... the DVD installer default display resolution seems to be set to 640x480... which is NUTS!!!!
Why has Tiger defaulted to the lowest possible resolution? And how can I fix it?
I tried to add the ColorSync Profile to the /System/Library/ColorSync/Profiles/ and the /System/Displays/ folders, but I can't calibrate the display or change to the "ViewSonic P220f @ 9300K Profile" file I downloaded from ViewSonic.
Inside the /System/Library/Displays/Overrides/ there are several files that I cannot open with any application I have -- though I haven't tried Terminal yet.
Can anyone help with this?
I tried some of the tips from these discussions "Factory Default profile is missing" -- but no luck yet.

I bought a ViewSonic 22" Pro Series Display about a
year ago, and when I went to upgrade to Tiger 10.4.x
today, the desktop display windows and icons were SO
HUGE that I almost couldn't access the buttons on the
installation disc windows... the DVD installer
default display resolution seems to be set to
640x480... which is NUTS!!!!
Why has Tiger defaulted to the lowest possible
resolution? And how can I fix it?
I tried to add the ColorSync Profile to the
/System/Library/ColorSync/Profiles/ and the
/System/Displays/ folders, but I can't calibrate the
display or change to the "ViewSonic P220f @ 9300K
Profile" file I downloaded from ViewSonic.
Inside the /System/Library/Displays/Overrides/ there
are several files that I cannot open with any
application I have -- though I haven't tried Terminal
yet.
Can anyone help with this?
I tried some of the tips from these discussions
"Factory Default profile is missing" -- but no luck
yet.
OK. It seems that I did not make it clear:
When I was INSTALLING the new Tiger (OSX 10.4.3), the default resolution was so low, that the buttons were HUGE.
The top and bottom of the Welcome screen were cut off. I could not even see the "Continue" button at the bottom of the window, and I could only continue by hitting the "Return" key on my keyboard.
If the button had not been pre-selected, I would not have been able to continue with the installation. There is NO WAY to scroll down or move the window up to select the button.
The "Install Tiger" window filled the entire screen, but luckily, I could access the buttons.
I did try a couple of Terminal commands from other discussions, but they did not fix the problem.
I've reset the PRAM and I am considering resetting the PMU on the logic board (using the apple info article #95307 guidelines).
However, I haven't read anywhere in the discussions if this is an actuall help or not.
PS: My computer model is listed at the bottom of this discussion window as it was at the bottom of the first discussion window. The video card is the either the Radeon 9000 Pro or NVIDIA GeForce4 Ti. I haven't changed it, and I don't remember which one it is - my G4 computer is not working at this time, and I may have to do a clean install of OS X 10.4 Tiger to get it back up and running.
Just a note about me: I've been working on Macs since 1987, and in 1984, I assembled my first DOS computer from Heathkit/Zenith. I have a Technician's Certificate to assemble and repair electronic gaming machines, juke boxes, video games and pinball machines. I know my way around elecronics and I'm doing pretty well with software and operating systems - mostly self-taught.
So, although I am extremely comfortable working in earlier versions of the Mac operating system (6.x-9.x), OS X is still a little new for me - and completely different from the earlier OS's. So I'm teaching my self Unix and trying to understand how the new OS works.

Screen resolution problem - HP computer and LED Cinema Display

I just purchased an HP Envy Phoenix H9-1330 with Windows 8, and I connected it to my 27" Mac LED Cinema Display, but the resolution is horrible. The highest option in the screen resolution menu is 1280 x 720, and I'm getting the error message "Your resolution is lower than 1024 x 768. Some items might not fit and apps might not open". How do I fix this? What kind of issue is this (Windows 8? Graphics card? HP can't support my monitor? etc...)?
I just bought another brand new computer, but not an HP, with Windows 8 and I have no problems with the resolution - it looks absolutely beautiful. I want to use my monitor with my HP desktop though.
Thanks for any help

Still haven't figured it out....
BUT I did notice that, on the back of the computer, there are 2 additional DVI connections that are covered with a black cover and screwed in (and they say 'please do not remove'.... I'm asuming it's because they aren't connected to anything? Or maybe they aren't connected to the graphics card?). Is it possible that just my DVI connection is wrong, and I'll need to connect to one of these covered-up DVI inputs instead? But why are they covered up? Do I need to take it in so they can be connected to the graphics card?? Help! I don't want to return this computer, but I will have to if I can't get the resolution fixed.

24in LED Cinema Display not charging MBP Late 2011

Hello All,
My new Macbook Pro (Late 2011) will not charge when connected to my 24in LED Cinema Display. The power indicator on the menu bar says "Not Charging" and the LED in the magsafe cable is dim. Is this a known limitation of the older Cinema Displays?
Thanks,
c.

I had the same problem. I found this
https://discussions.apple.com/thread/2006045?start=0&tstart=0
.. which suggestes "wiggling" the magsafe connector a little. It worked for me.

[SOLVED] Can't set X server display resolution

Hello all,
I'm trying to set X Server display resolution to my monitor native 1366x768. I'm running Arch in a VMWare virtual machine. I have installed xf86-video-vmware drivers.
Here's the contents of my 10-monitor.conf file
Section "Monitor"
Identifier "Monitor0"
DisplaySize 410 230
EndSection
Section "Device"
Identifier "Device0"
Driver "vmware" #Choose the driver used for this monitor
EndSection
Section "Screen"
Identifier "Screen0" #Collapse Monitor and Device section to Screen section
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24 #Choose the depth (16||24)
SubSection "Display"
Depth 24
Modes "1366x768" "1024x768" "800x600" "640x480" #Choose the resolution
EndSubSection
EndSection
And here's the log file where the resolutions get rejected:
2831.766] (II) vmwlegacy(0): Not using mode "1366x768" (no mode of this name)
2831.766] (II) vmwlegacy(0): Not using mode "1024x768" (no mode of this name)
Is this a consequence of the vmlegacy drivers? This is up high in the log file, where the legacy drivers eventually get loaded:
[ 2829.987] (II) LoadModule: "vmware"
[ 2829.988] (II) Loading /usr/lib/xorg/modules/drivers/vmware_drv.so
[ 2829.988] (II) Module vmware: vendor="X.Org Foundation"
[ 2829.988] compiled for 1.8.0, module version = 11.0.1
[ 2829.988] Module class: X.Org Video Driver
[ 2829.988] ABI class: X.Org Video Driver, version 7.0
[ 2829.988] (II) LoadModule: "vmwgfx"
[ 2829.988] (WW) Warning, couldn't open module vmwgfx
[ 2829.988] (II) UnloadModule: "vmwgfx"
[ 2829.988] (EE) Failed to load module "vmwgfx" (module does not exist, 0)
[ 2829.996] (EE) vmware: Please ignore the above warnings about not being able to to load module/driver vmwgfx
[ 2829.998] (II) vmware: Using vmwlegacy driver everything is fine.
[ 2829.998] (II) LoadModule: "vmwlegacy"
[ 2829.998] (II) Loading /usr/lib/xorg/modules/drivers/vmwlegacy_drv.so
[ 2829.998] (II) Module vmwlegacy: vendor="X.Org Foundation"
[ 2829.998] compiled for 1.8.0, module version = 11.0.1
[ 2829.998] Module class: X.Org Video Driver
[ 2829.998] ABI class: X.Org Video Driver, version 7.0
[ 2829.998] (II) vmwlegacy: driver for VMware SVGA: vmware0405, vmware0710
[ 2829.999] (--) using VT number 7
[ 2830.043] (II) Primary Device is: PCI 00@00:0f:0
[ 2830.043] (--) vmwlegacy(0): VMware SVGA regs at (0x10d0, 0x10d1)
[ 2830.043] (II) Loading sub module "vgahw"
[ 2830.043] (II) LoadModule: "vgahw"
[ 2830.044] (II) Loading /usr/lib/xorg/modules/libvgahw.so
[ 2830.044] (II) Module vgahw: vendor="X.Org Foundation"
[ 2830.044] compiled for 1.8.1.902, module version = 0.1.0
[ 2830.044] ABI class: X.Org Video Driver, version 7.0
[ 2831.763] (--) vmwlegacy(0): caps: 0x001FC3E2
[ 2831.763] (--) vmwlegacy(0): depth: 24
[ 2831.763] (--) vmwlegacy(0): bpp: 32
[ 2831.763] (--) vmwlegacy(0): vram: 18022400
Am I stuck to 800x600 in X Server when running Arch as a VMWare guest, or can I improve my situation?
EDIT: I have open-vm-tools installed and started through /etc/vmware-tools/poweron-vm-default.
Last edited by marfig (2010-08-05 02:40:23)

Ok. Finally it's working. This is why I love Arch. It forces me to learn.
The solution:
Step 1.
I followed the instructions in X.Org Wiki about obtaining modelines. Sadly, the log file didn't produce anything (probably because I was using the vesa vbe driver). But I followed the next option and got the modeline from Windows tool, Powerstrip.
"1366x768" 85.476 1366 1436 1579 1792 768 771 774 798 -hsync +vsync
Step 2.
Went to the web and fetched all the technical information about this monitor (a Acer X193HQ, that I use as my third monitor). I wanted hsync and vsync ranges, and display size in mm.
Step 3.
Edited my configuration file (/etc/X11/xorg.conf.d/10-monitor.conf) making sure to comment out the last part of the modeline, since I was going to manually add the hsync and vsync ranges.
Section "Monitor"
Identifier "Monitor0"
DisplaySize 410 230
HorizSync 30-80
VertRefresh 55-60
ModelName "X193HQ"
Option "DPMS"
VendorName "Acer"
ModeLine "1366x768" 85.476 1366 1436 1579 1792 768 771 774 798 # -hsync +vsync
EndSection
Section "Device"
Identifier "Device0"
Driver "vesa"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 16
SubSection "Display"
Depth 16
Modes "1366x768"
EndSubSection
EndSection
Step 4.
Success! X is started in 1366x768 with the vesa drivers with a 60Hz refresh rate.
Final thoughts
- With the vmware display drivers (xf86-driver-vmware) I don't get ideal results. For some reason it starts in 1368x768 (yes, 1368!). However xrandr reveals it supports 1366x768, and once I xrandr --size into it, all is fine. Dunno why this happens.
- It only works in 16 bit depth. 24 or 32 corrupt the screen. I don't know exactly why either. But for the use I plan to give the X server, 16 bit is fine.
Last edited by marfig (2010-08-06 00:02:24)

VMware Fusion and Apple LED Cinema Display

I have a 2008 MBP and a 27" Apple LED Cinema Display. My OS is 10.7.2.
I am running Windows 7 with the latest updates in VMWare Fusion 4.1.1. I have several issues.
1) When I go to chose my monitor it say Apple LED Cinema Display but "Generic Non-PnP Monitor." I downloaded and installed the boot camp drivers as I understood those contained the drivers for the monitor, but that didn't seem to help. Do I need to have the Boot Camp drivers?
2) When I try to access the Boot Camp Control panel in Windows 7 in Fusion I get "An error occured while tyring to access the startup disk settings. You may not have privileges to change the startup disk." My guess is this is because the Boot Camp drivers are only needed if you actualy run Boot Camp.
3) In Windows I cannot choose the native resolution of the Apple display (2560 x 1440).
4) The resolution ia 1277 x 1234. That is weird.
5) If I minimze the Fusion window and then immediately open it, it looks fine. But if I wait for awhile and open it, the window will be black until I click inside of it.
Something is wrong, Any help in fixing this would be greatly appreciated.
Bryan

you have to separate out what is Fusion and what is Windows native.
Even doing updates to Windows sometimes should not or cannot be done properly in VM.
And there is no way to change the default boot drive - a VM doesn't have access and that is the host OS's job, not the guest's.
Install the latest AMD driver for mobility - and dont' use the "auto detect" - that is not going to work on Apple hardware.
You dont' run Boot Camp. But the Apple drivers and serives needed for hardware support, yes, they aren't running or loaded.

Cannot change display resolution when connected to external display

On my 2.0GHz 13" MacBook, I have no problem with the display resolution when connecting to external display/projector when I am running in Mac OS, everything work perfectly! But things start to get messy when I am running in Windows VISTA 32 (installed within the Boot Camp 2.1). Whenever I connect to any external display/projector via a MiniDisplay-to-VGA cable, the resolutions on both my MacBook LCD and external display/projector drop to 640x480. And i am not able increase the resolution in the Display Settings. Does this mean that I have not installed the latest version of display drivers? Or is it that Apple did not provide the VISTA 32 drivers (in Boot Camp 2.1) that is compatible with the Mini Display port.

Cool!
I'm glad you have it fixed.
Please resolve the thread so others can find your answer faster.
Thanks,
Bifocals
Click Accept as Solution for posts that have solved your issue(s)!
Be sure to click Like! for those who have helped you.
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VGA Windows laptop to Apple LED Cinema Display...?

Attaching VGA Windows laptop to Apple LED Cinema Display...? Is this possible? I have a personal MBP that'd work fine, but need to connect a work laptop as well. Any insight would be great. Thanks!

As mentioned, the biggest issue is that the VGA signal is analog, and the Apple Cinema Displays only accept digital signals. Does your laptop have any other videop output ports? A DisplayPort or Mini DisplayPort would be the easiest, of course, but if you have an HDMI connection, you could get something like the Atlona HDMI to Mini DisplayPort Converter and Scaler. Not exactly cheap at $170, but if you really need it, and you have the port, maybe it is a solution for you. The only issue, it seems, is you would be limited to 1920x1080 resolution.

DVI Adapter for LED Cinema Display Mini DisplayPort?

Is there an adapter for use with the new LED Cinema display port? I expect the new Mini's to switch to the Mini DisplayPort, if there is a new Mini, but in the meantime ...
Now that everything is going black, glass and aluminum, when is Apple going to update:
1) Keyboards to black keys?
2) Mouse to black and/or aluminum?
3) Mini, AirPort Extreme, Time Capsule to black & aluminum?
4) Power Adapters, Airport Express, cables, etc. to black and/or aluminum?
Finally a unified product line/look!

Woodwyn wrote:
Actually after thinking about it, the immediate solution is likely a short DVI extension cord combined with the Mini DisplayPort to DVI adapter. I would prefer a small Apple adapter to ship with the display however, much in the same way as the DB-15 adapter shipped with the VGA version of the old LCD Studio Display, or at least make one for sale. Guess Apple is leaving this up to third parties as usual.
The Apple Mini DisplayPort to DVI adapter would not work in this case as it is a male (Mini DisplayPort) to female (DVI) adapter. The new 24" Cinema Display has a non-removable cable ending in a male (Mini DisplayPort). As a male plug will not connect to a male plug it will not work.
I am sure soon enough various third-parties like Gefen, Griffin, and Belkin will come up with suitable adapters which do have the right genders. It is somewhat disappointing Apple have not done this themselves as I am sure plenty of Mac Pro owners are also salivating over this new display.
Arguably, Apple are repeating the same mistake they made with the ACD (Apple Cinema Display) connector and making it much harder and more expensive to use their displays with non Apple computers. That is they should have stuck with a standard DisplayPort connector rather than the esoteric Mini DisplayPort.
I equally hope someone comes up with Mini DisplayPort to (big) DisplayPort adapters as well.
On a totally different topic, I was also surprised and disappointed Apple did not switch to 16:9 displays for these new products (they are all still 16:10). The rest of the industry has already started switching to 16:9 displays and the clear trend is that 16:10 is on its way out. Still, the black border of these Apple displays does very conveniently hide the blank pixels (when playing a 16:9 video).

My macbook is back from repairs. It is not working with my apple led cinema display. It was working prior to the repairs on the laptop. Is there a setting I don't know about that might have been changed?

My macbook pro is just back from repairs. It is not working with my apple led cinema display. I have followed the directions in the cinema display manual. am I missing something?

Take a look at the Displays preference panel to see if everything is ok, particularly the resolution and refresh rate. Displays will probably try to put the panel for the ACD on the ACD where you won't see it. So click "Gather Windows" to get the ACD panel on to your macbook.
One more thing, make sure you fully seated the mini displayport plug. They can be sneaky little devils in that they need to be fully pushed in.

LED 24in Display resolution stuck at 640X480

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