External Display resolution problem after resetting PRAM

Gello, I've got Fujitsu-Siemens P19-2 monitor hooked up to my MbookPro and after resetting PRAM the correct display resolution disappeared from the "Displays" menu in System PReferences.
So did the refresh rate option...
What do I do?
I really need to change the refresh rate and the resolution, but the refresh rate button is grey and unclickable, and the resolution simply isn't there (I need 1280x1024).
REsetting PRAM and SMC didn't help.

After a couple of resets everything went back to normal

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External display resolution changes after returning from display sleep

I often use an external display as a second screen with my Macbook Pro (OS X 10.8.2) However, when I return to the computer after the display has gone to sleep, the external display resolution changes when the display reappears. Then I have to go into System Preferences > Display and "Detect Displays" in order to return the external display to the proper resolution.
Does anybody know of a way for me to avoid having to do this every time my display sleeps?
Thank you,
Adam

I have the exact same problem.
I found the key combination ⌘ alt F2 also restores the proper resolution on both displays, however it's still a bit annoying

Macbook Pro 13 inch & External Display - resolution problem

Hi
I'm trying to connect my macbook pro 13inch to an NEC 26' Multisync display - which has a native resolution of 1900 x 1200 - and when connected to a PC this is what I get. When I connect the mac though the top resolution is 1900 x 1080 - so the display is distorted.
I've tried finding diplay drivers for the monitor and graphics card without success. Apparently the GEForce 9400 graphics in the macbook can output up to 2500 x 1600.
I'm wondering if it's the connection method - I'm using the mini display to VGA adapter that I got with the macbook. Do I need to use the alternative adapter - the mini display port to DVI adapter? Seems this is needed for connection to 'advanced' displays. Will this make any difference or is it that the macbook 13 inch can't output to a 26in display?
Any advice or assistance will be greatly appreciated
Many Thanks
Tim Gundry

I would get the DVI regardless.
Your taking a digital signal from the macbook, converting to to anolage VGA, and the the monitor is converting it back to digital again to display on the screen.
DVI will make it direct digital to digital.
Plus, because DVI is digital, is passes resolution information. So you should get your native resolution no problem.

Can't boot after resetting PRAM??

Before attempting to install Leopard, I upgraded my non-leopard compatible 1.2 GHz processor to a 1.8 GHz leopard compatible one. I also doubled my RAM from 512 to 1024 MB. I then installed leopard but upon restart it continually shut down. Holding down the "c" button at startup, I was able to boot from the leopard disc. I could then even start the computer from my old Panther startup volume. I used 'Disk Utility', ran 'disk repair' and reinstalled Leopard. The same problem persisted.
In another forum someone suggested resetting the PRAM as a next step. This I did but now I'm really freaking out because my computer is totally nonresponsive. My computer starts, I no longer hear that wonderful symphonic major chord, the Apple logo appears (with no circular loading bar), and there it remains frozen. I can no longer boot from the Leopard disc or any other disc (TechTool Pro, DiskWarrior). What should I try now?

japjunk wrote:
Before attempting to install Leopard, I upgraded my non-leopard compatible 1.2 GHz processor to a 1.8 GHz leopard compatible one. I also doubled my RAM from 512 to 1024 MB. I then installed leopard but upon restart it continually shut down. Holding down the "c" button at startup, I was able to boot from the leopard disc. I could then even start the computer from my old Panther startup volume. I used 'Disk Utility', ran 'disk repair' and reinstalled Leopard. The same problem persisted.
In another forum someone suggested resetting the PRAM as a next step. This I did but now I'm really freaking out because my computer is totally nonresponsive. My computer starts, I no longer hear that wonderful symphonic major chord, the Apple logo appears (with no circular loading bar), and there it remains frozen. I can no longer boot from the Leopard disc or any other disc (TechTool Pro, DiskWarrior). What should I try now?
There are several things you can do.
If you can’t start up after resetting PRAM
If you have a redundant array of independent disks (RAID) scheme set up, your computer may not start up if you reset parameter random-access memory (PRAM) when you restart.
If this happens, hold down the Option key while you restart your computer, and select your startup disk when you see the prompt.
f a message says “type ‘mac-boot’ and press return”
If the message “type ‘mac-boot’ and press return” appears when you try to start up your computer, some of your computer’s internal settings need to be reset.
NOTE: It may be helpful to print these instructions before you begin.
Or, try these suggestions:
■ Shut down your computer. Turn the computer back on and immediately hold down Command-Option-P-R, continuing to press until you hear the startup sound for the second time. This resets the computer’s parameter random-access memory (PRAM).
IMPORTANT: Resetting PRAM may change some system settings and preferences. Use System Preferences to restore your settings.
And finally
Restart with the X key
Hold down the X key and choose Apple menu > Restart. This may force the computer to start up using your Mac OS X system.
If the computer starts up, release the X key. Choose Apple menu> System Preferences, and then click Startup Disk. Make sure that the disk containing Mac OS X is selected.
Restart with the Option key
If you are unable to start up using the X key, choose Apple menu > Restart and immediately hold down the Option key.
When icons start to appear in the center of the screen, release the Option key. Select the disk that contains Mac OS X, and then click the forward arrow to continue starting up.
■ If resetting PRAM doesn’t solve the problem, reset non-volatile random access memory (NVRAM). When the “To continue booting ...” message appears, type “reset-nvram” and press Return. Then type “reset-all” and press Return.

Macbook Pro, how to reset invalid external display resolution?

Hi there. I have a question about the external display configuration.
I recently connected my 2011 Macbook Pro 13" (10.8.2 Mountain Lion) to an external HD-TV using Thunderbolt to VGA adapter. After connecting the TV had 1920x1200 resolution which made the text and everything look very tiny. So I thought I'd lower the resolution a bit. But then I messed up and accidentally changed the resolution and refresh rate for the external display to one that wasn't supported. So the TV went black and gave an error about an invalid resolution. At the same time, on my Macbook screen I had only the background image and display settings dialog. No mouse cursor, no menu bar, no dock etc. So I couldn't do anything.
I disconnected the Thunderbolt adapter and got my Macbook screen back to normal, but when I plugged it in again, the same thing happened. Invalid resolution on TV, just background image and display settings on Macbook screen.
Now, this was just before I was going to give a presentation and it resulted in a very awkward situation with me franticly re-plugging the Thunderbolt adapter and looking just completely clueless In the end I had to borrow my colleague's laptop.
So my question is: when this happens, is there a way I can reset / clear the external display settings back to defaults? They are obviously saved somewhere since replugging the Thunderbolt adapter didn't give me back my original resolution.

A PRAM reset should solve that:
From the article linked above:
Your Mac stores certain settings in a special memory area even if it is turned off. On Intel-based Macs, this is stored in memory known as NVRAM; on PowerPC-based Macs, this is stored in memory known as PRAM.
Information stored in NVRAM / PRAM includes:
Speaker volume
Screen resolution
Startup disk selection
Recent kernel panic information, if any
To reset your PRAM:
Shut down your Mac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.

Is anyone experience display resolution problems on MBP15"I7 after OS Lion install?

I installed OS Lion on my MacBook pro 15" one week ago. I have installed the 10.7.1 update. Like many, I have experienced a dramatic slowdown in performance - Aperture is now unusable. My most immediate problem is that the display has lost its sharpness - I have tried all the resolution options in System preferences/displays. Non of the options available on display resolution allow the diplay to align to the screen paramenters and all leave the text and graphics slightly unfocussed. Is this a common problem, and are there solutions out there? Many thanks.

I installed OS Lion on my MacBook pro 15" one week ago. I have installed the 10.7.1 update. Like many, I have experienced a dramatic slowdown in performance - Aperture is now unusable. My most immediate problem is that the display has lost its sharpness - I have tried all the resolution options in System preferences/displays. Non of the options available on display resolution allow the diplay to align to the screen paramenters and all leave the text and graphics slightly unfocussed. Is this a common problem, and are there solutions out there? Many thanks.

10.8.3 display resolution problem

Heya. My monitor resolution has been working fine on my mid 2010 MacMini without any problems since 2010.
Since the 10.8.3 update my screen resolution keeps resetting itself to 800 x 600 after waking from sleep. When I go to the Displays system pref there is a (new to me at least) option 'Best for Display' that is selected. When I select the Scaled option my monitor resolution (1680 x 1050, which i have been using successfully for years) is not listed.
I have tried the following steps:
1. Using the monitor's Auto/Set button to re-set the resolution
2. Reset the system PRAM
At this stage the only way to get the monitor resolution back is to restart the machine.
Specs:
Mid 2010 MacMini (2.4GHz Intel Core Duo)
NVIDIA GeForce 320M 256MB
4Gb RAM
LG Flatron W2242S 23" monitor
Connected to Mac via VGA adaptor into Display Port.
Any thoughts would be gratefully received, thanks
Mark

I found a fix. If your desired monitor resolution isn't available, hold the Option button in the Displays prefs and a 'Detect Displays' button magically appears at the bottom right of the window (by the ? button). This gave me the 1680x1050 resolution that I needed.
Not sure exactly why you need to press to Option button for Detect Displays to appear, but there you go!
http://support.apple.com/kb/HT1573

Leopard "Forgets" External Display Resolution

I have a 17" MacBook Pro C2D (Oct 2006 revision) that I use at work with an external display (Dell E197FP) that is connected to the laptop via the DVI-to-VGA adaptor. The Dell has a native display resolution of 1280*1024 @60Hz and this is set via the System Preference's Display panel. The problem is that quite often when I connect the display in the morning OS X (10.5.6, at present) "forgets" the resolution that has been set and reverts back to its default for the display, which is 1152*864 @75Hz. It is baffling to me that it keeps forgetting the selected resolution for the display, despite recognising it, and that it selects such an odd resolution as a default. This happens about once per week at the moment.
Does anyone have an idea what is causing this and how I can stop OS X from being so forgetful?

Are you getting one to extend your desktop? I don't, I use my MacBook with the screen off using my external only with a keyboard and mouse plugged in. I run my Late 2008 2.1GHz MacBook with a GMA X3100 using a 23" Samsung wide ratio no problem in 1680x1050. It is high resolution. Make sure you click "mirror" in Display Prefs. Be certain that you don't simply boot to both because the external will appear grainy and only be putting out the native 1280 X 800 13" MacBook resolution on the new big LCD. There are many different ways to achieve this. With the LCD on and hooked to the MacBook, turn the MacBook on then quickly close lid after the chime. Give it some time. After it boots to the external, I open the lid to provide proper airflow, some may argue it's not needed.

External Display Resolution Issue...

I have a Mid-2012 MPB running Mavericks. Recently, I've tried connecting 2 different external display's to the MBP via an Apple Thunderbolt to VGA adaptor. I can't get the resolution of the connected displays to go above 800 x 600, and it looks awful.
The first screen is a Samsung SyncMaster T260HD with a native res of 1920 x 1200, and the other is a Samsung SyncMaster 933HD, with a native res of 1366 x 768. I plug them into my Windows box via a VGA cable, and it will drive each display at it's native res just fine. So what have I missed to get the MBP to do this???
Thanks in advance. :-)

My MBP has Thunderbolt and I have a mini displayport to DVI adapter. This is connected to the DVI port in the display.
That option key selection did not increase the alternative resolutions available.
I did reset PRAM according to a advise hee in the community. That did not help either.

Display resolution problem when login

My screen dislay suddenly has resloution issue. l checked System Preference -> Display
and the resolution is set at 1280x800, which should be the correct settings. But the display still shows on lower resolution.
I reboot/shutdown, still the display is not display as 1280X800.
Then I logon with a different username, it works as normal.
Only time the display has issue is when I am using my username.
It is a MacBook Pro running OS X 10.7
Anyone running into similar problem? Please help.

Reset PRAM. http://support.apple.com/kb/PH4405
Best.

Cinema display sound problem after Mavericks update

Since I updated to Mavericks, sound only comes from my laptop speakers, instead of from my LED Cinema display's speakers. And when I look at Sound in Preferences, there is no longer the option to change the sound source. Anyone come across this and know how to fix it? Thanks.

Hey there Kravmafan,
It sounds like you are not getting the sound options you are expecting when using a cinema display. I would suggest using these troubleshooting steps from the following article, named:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Try unplugging the video adapter or cable and then plug it back in.
If more than one video adapter is in use (or "daisy-chained"), troubleshoot by using only one adapter.
Example: A mini DisplayPort to DVI adapter connected to a DVI to HDMI adapter is an unsupported configuration because there is a series of adapters in use.
If available, try using a different display and or adapter (or use a different connector by using DVI instead of VGA, for instance).
Reset the system
You can reset the Mac's parameter RAM and SMC.
Reset the resolution
Start by resetting the Mac's parameter RAM. If the display does not come up, was previously set to an unsupported resolution, and still results in no video:
Start up in Safe Mode.
From the Apple () menu, choose System Preferences.
Choose Displays from the View menu to open the preferences pane.
Select any resolution and refresh rate that your display supports.
Restart your computer.
Thank you for using Apple Support Communities.
Cheers,
Sterling

How to change external display resolution WITHOUT clicking "CONFIRM"?

I have a somewhat unusual situation. My MacBook laptop is actually now a ModBook (a pen-tablet computer), and as such I no longer have a trackpad attached to it. All of my inputs are via the stylus, tapping directly on the built-in display.
This works perfectly fine, except when I need to give presentations on an LCD projector (which is quite often lately). I like to use the projector as an external monitor, so that I can run the Keynote presentation on it while using my laptop screen as the presenter's display, with the upcoming slide, etc. If the projector doesn't give me an ideal native display option (sometimes, the aspect ratio for the 3 or 4 resolutions available in the Displays drop-down in the menubar turn out to be stretched or squeezed), then I, naturally, have to open the Display System Preferences and try out different resolutions.
The problem is, since my stylus only interacts by clicking directly on the built-in-display, I have no way of moving the cursor over to the external display when the dialog box with the "Click here to confirm change/You have 15 seconds..." message appears. So I can never click it ... so I can never confirm the new settings.
The workarounds I've used so far are:
- Mirror displays (not ideal, as I need the presenter preview of the next slide)
- borrow a mouse from someone (usually from a Windows desktop, frankly) and plug that in to briefly mouse over and click the confirm button
I'd love to find a software workaround that allows me to NOT mirror displays and also doesn't require me to carry around a mouse all the time (my laptop bag is already overstuffed...).
Thanks.

Fateh wrote:
I hope that my question is clear ... Nope.
How to change the display resolution of APEX ??APEX doesn't have a display resolution. "Display resolution" is an attribute of the device and user agent software used to view the APEX page.
What do you mean by "the display resolution of APEX"?
In other word, if an end user sees large elements on a pageWhat "large elements"?
then he/she zooms it outHow?
"Zooms" what—the entire page or a single "large element"?
How can I set a proper ZOOM for my app by default ...Meaning what?
And as usual, we're missing:
<li>Full APEX version
<li>Full DB/version/edition/host OS
<li>Web server architecture (EPG, OHS or APEX listener/host OS)
<li>Browser(s) and version(s) used
<li>Theme
<li>Template(s)
<li>Region/item type(s)
You've been posting here for years. You know this basic information is necessary to understand and reproduce problems.
If you're looking for help it doesn't seem unreasonable that you make the effort to provide a full, clear but concise description of the problem or requirement.

Conflicting information about external display resolution - please help!

I have a MacBook Pro (15-inch, Mid 2009) with the non-reflective screen, Mini Display Port and NVIDIA GeForce 9400M Graphics processor.
According to these technical specifications (http://support.apple.com/kb/SP544), the built-in NVIDIA GeForce 9400M Graphics processor supports full native resolution on the built-in display and up to 2560 by 1600 pixels on an external display.
Armed with this information, I just purchased a shiny, new DELL U2711 (http://accessories.us.dell.com/sna/productdetail.aspx?c=us&cs=04&l=en&s=bsd&sku= 224-8284&redirect=1) external display which has a resolution of 2560 x 1440. Unfortunately, all I can get out of it is 1920 x 1080 (This is the maximum resolution I can select in the monitors system preferences panel.)
So Apple tells me this graphics card supports 2560 x 1600, but I also contacted NVIDIA directly who told me that this particular card's maximum resolution is 1920 x 1080.
Somebody has to be wrong. Is this monitor supported? Am I doing something wrong? Do I need to send this monitor back and buy a smaller display?
Any advice would be greatly appreciated.
O

Well - seeing as nobody could provide any help on this, I'll post the answer in case anybody else has the same problem.
It turns out that the monitor's resolution IS supported by the NVIDIA GeForce 9400M, so the information NVIDIA gave me was wrong.
The issue was the adaptor.
A regular Mini Display > DVI adaptor can only handle a resolution of 1920 x 1080. Turns out I needed a Mini Display > DUAL LINK DVI Adapter, which is a combination of USB and DVI which provides the required resolution of 2560 x 1600.
http://store.apple.com/us/product/MB571Z/A
Hope this is helpful to somebody.

Display Resolution problems

I have a 17" MacBook pro with Lion on it as of 3 days ago. Been working fine until I connected my 30" display to it. When I connected it, the display went all wonky. I rebooted, disconnected, many combination of each. Now my MBP will not even display at full resolution when disconnected from the external monitor. Scoured this forum and the internet for similar problems, and while I found multiple issues relating to displays with a Lion upgrade, I did not see any issues specifically with screen resolution.
Any help would be greatly appreciated.
Will

Hi Capt,
Thanks for the reply, but unfortunately not the solution. I have the two screens in extend mode, and both at max resolution (2560x1600 for the 30" and 1920x1200 for the laptop display).
It seems the computer is having difficulties fitting the screen onto the monitor, like it does when you select a resolution that is too large for your monitor. The entire screen is being rendered, but I have to pan right and down to see the whole thing. When I have the external display connected (as main screen), I can see part of it on the laptop display. So the rendering is working... it just cant display at the correct resolution.

Internal vs. External Display Resolution

Hi,
I just purchased a KVM switch by IO Gear Model GCS1782. Hooked up my Mac Book Pro 15 inch 2.16 Ghz with DVI Dual Link and Mac Mini Power PC with DVI single link.
The KVM is working perfectly. The Mac Mini Display resolution is 1680x1050 as normal. The MBP Color LCD is 1440x900 as normal.
Question: Why does the display on the internal display of the MBP look crisper than the Cinema Display? The CD looks like a lo res VGA monitor.

Okay everybody...something funny happened this morning.
Last night I put my MBP to sleep by using "Insomnia" and woke it up this morning and to my surprise, the resolution is matched. No more fuzziness. I have the display icon on the title bar which shows the only one display, only the ACD at 1680x1050. Yesterday it showed two displays because I was mirroring.
Yesterday morning I hooked up a new KVM (I/O Gear Model GCS1782) and discovered video display problems (not from the KVM). From 10:30 AM to 2:45 PM I called IO Gear support, Apple Sale Support (x2), Apple Technical Support (x2), and continuously scoured these forum reading and posting.
Yesterday:
1. Could not close lid of MBP because ACD would go black. (Solution: Insomnia)
2. Could not get MBP LCD display be crisp on the external ACD (Solution: Insomnia)
3. Mirrored the MBP causing the ACD to use a lower resolution (Solution: Insomnia)
Today, all is well.
I think it had to do with the MBP sleep mode or ????. I am not positive on what exactly happened to get the max resolution. I am just a wee bit concerned that it will happen again because I have to disconnect the MBP tomorrow and reconnect without the confidence I can get it to work. One thing for sure, I won't mirror any longer.
Lessons Learned:
1. No one person is proficient with using external displays on MBP. The pieces of information that I needed were either scattered and fragmented or just not available.
2. The people at Apple is nice, helpful, and well meaning. But this particular situation revealed a lack of technical cohesion in its communication.
I want to thank all the good people who help me along this journey.

External Display resolution problem after resetting PRAM

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