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

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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

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

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.

[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)

How to reset display resolution on a MacBook Pro

Hi,
My MBP 15.4 /2.4GHz display is stuck at a low colour display and I am unable to get it back to normal. I was working in MS Remote Desktop Connection, switched into OS X's Universal Access in System Preferences and that's when the fun started.
I've tried resetting PRAM using CommandOption+PR, but to no avail. My display settings in System Preferences show what one would expect - 1440x900, millions of colours. Changing these and switching back does nothing.
The thing is, when I start up, the desktop shows the display as it should be for a split second before it garbles the display's colours. It looks like an old Win 3.x box with 16 colour settings.
Is there a config file I can delete to reset the display, or some other way round this? Any suggestions would be much appreciated...
Cheers,
buddsbrains

Called Apple support, turned out to be a corrupt preference file; I renamed the preferences folder & rebooted & that resolved the issue. Now have to rebuild / copy back my old preferences...

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.

Thinkpad Yoga - Insufficient external display resolution over the Onelink

My local Lenovo Partner just confirmed the data in "User Guide" of the TPYoga, that the external screen resolution will only be 1920x1200.
"User Guide" Page 10, http://www.lenovo.com/shop/americas/content/user_guides/tpyoga_ug_en.pdf
"Display resolution:
– LCD: 1366-by-768 or 1920-by-1080, depending on the model
– External monitor: up to 1920-by-1200, depending on the monitor model"
I mean what do I want the OneLink Dock / OneLink PRO Dock for??
Of cause to connect a large screen and this not with a worse ppi than the intern display. So I need at least 2560x1600
(we don’t even talk about all the disadvantages of a 16:9 screen, cause that’s off topic).
Idealy I expect of cause a 4k resolution possibility together with the OneLink Pro Dock and multi stream (daisy chain) possibility at the display port.
But 1920x1200 external graphic output can’t be meant serious for a 2000US$ device??

Ok, let’s accept that the new Thinkpad YOGA Manual includes misinformation.
Actually I’m sitting in front of my 2048x1152 Display which is connected to my 8 years old Asus Notebook via DVI. Does this old jalopy perform a higher resolution via DVI than the Thinkpad Yoga via “OneLink PRO Dock-DVI” does?
http://download.lenovo.com/ibmdl/pub/pc/pccbbs/options/tp_onelink_pro_dock_ug_en.pdf
Page 13
(I’m guessing in the first line (behind "One monitor") it’s supposed to mean DVI instead of DP”
(1) Lenovo, are these technical details of the NEW OneLink Pro Dock also wrong like the Manual of the Yoga regarding the maximum resolution?
Would be very helpful for me to plan with correct information..
(2) And is it definitely true that I can't connect two displays at the OneLink PRO Dock with a higher resolution than 1920x1200??
That would mean I send the Thinkpad Yoga back and better stay with my 8 years old ASUS jalopy.. smileyfrustrated:

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

I have Dell up2414q monitor which is capable of displaying up to 3840 x 2160. But when I connect my 11-inch Macbook Air (the latest 2014 model), which is capable of 2560 x 1600, shows only 1920 x 1080. This is the highest resolution listed in display setting.
I'm using Display Port cable and enabled Display Port 1.2 setting on the monitor. I went to Apple Store and asked, but they had no idea what was wrong. My OS is 10.9.3.

Hi there gen2014,
You may find the information in the article below helpful.
OS X Mavericks: Adjust your display resolution
http://support.apple.com/kb/PH14388
You can connect a second display and adjust its resolution. Once it’s connected, click Scaled, then select a resolution. Press the Option key while you click Scaled to see additional resolutions for the second display.
If you continue to experience issues, take a look at the troubleshooting steps in the article below.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
-Griff W.

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

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

Highest dual display resolution for mac mini mid 2011

I am currently running a mac mini mid 2011. As I've understood (according to the below statement). Am I only able to use 2 secreen with 1920x1200 or could I use one screen with 2560x1600 and one with 1920x1200. I do NOT want mirroring, only dual displays.
I am going to connect the screens in the following way:
1x mini-dvi - HDMI to one screen.
1x HDMI - HDMI to the other screen.
Display Support:
Dual Displays
Resolution Support:
1920x1200*
Details:
*This model simultaneously supports 1920x1200 on an HDMI display or a DVI display using the included HDMI-to-DVI adapterand 2560x1600 on a Thunderbolt or Mini DisplayPort display or even a VGA display (with an optional Mini DisplayPort-to-VGA adapter, which is compatible with the Thunderbolt port).
2nd Display Support:
Dual/Mirroring*
2nd Max. Resolution:
2560x1600*
Details:
*This model simultaneously supports 1920x1200 on an HDMI or a DVI display (using the included HDMI-to-DVI adapter) and2560x1600 on a Thunderbolt or Mini DisplayPort display or even a VGA display (with an optional Mini DisplayPort-to-VGA adapter, which is compatible with the Thunderbolt port).
Thanks in advance
Rich

According to the copy&paste from wikipedia, HDMI should support higher resolution than 1920x1200. So the question is, does it aupport that on the mid 2011 mac mini. It says in the specifications
"Mac mini is designed to work with HDMI devices that comply with versions 1.0, 1.1, 1.2, 1.2a, 1.3, 1.3a, and 1.4 of the HDMI specification."
That should mean it should be able to support it, but I don't know : <
HDMI version
1.0
1.1
1.2
1.3
1.4
2.0
Date initially released
December 9, 2002
May 20, 2004
August 8, 2005
June 22, 2006
May 28, 2009
September 12, 2013
Maximum clock rate (MHz)
165
165
165
340
340[109]
600
Maximum TMDS throughput per channel (Gbit/s) including 8b/10b overhead
1.65
1.65
1.65
3.40
3.40
6
Maximum total TMDS throughput (Gbit/s) including 8b/10b overhead
4.95
4.95
4.95
10.2
10.2
18
Maximum throughput (Gbit/s) with 8b/10b overhead removed
3.96
3.96
3.96
8.16
8.16
14.4
Maximum audio throughput (Mbit/s)
36.86
36.86
36.86
36.86
36.86
Maximum color depth (bit/px)
24
24
24
48[a]
48
Maximum resolution over single link at 24-bit/px[b]
1920×1200p60
1920×1200p60
1920×1200p60
2560×1600p75
4096×2160p24
4096×2160p60
Maximum resolution over single link at 30-bit/px[c]
N/A
N/A
N/A
2560×1600p60
4096×2160p24
Maximum resolution over single link at 36-bit/px[d]
N/A
N/A
N/A
1920×1200p75
4096×2160p24
Maximum resolution over single link at 48-bit/px[e]
N/A
N/A
N/A
1920×1200p60
1920×1200p60
Maximum 3D resolution (using a full resolution 3D format) over single link at 24-bit/px
N/A
N/A
N/A
N/A
1920×1200p60

Cannot set display resolution after upgrading to Mavericks

I have early Mac Mini connected to KVM stitch. Over the weekend I upgraded to Mavericks and it "dowgraded" display resolution from 1920x1200 to 1600x1200 and everythign looks streached. 1920x1200 no longer shows on the list in display properties (1920x1440 shows but it does not look good on my screen). I googled Option key trick and hitting "Scaled" while hold Option key does show some additional resolutions, but not the one I used to have.
Connecting Mac directly to the monitor allowed me to set proper resolution and after removing monitor and pluging mac back into KVM things "held" untill Mac goes to sleep or until reboots.
I am aware that my KVM switch does not communicate EDID but things did work just fine before upgrade to Mavericks.

Hello curtdav,
It sounds like you are getting a graphical anomoly when unplugging an external monitor. I recommend these troubleshooting steps from the article named:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
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.
Take care,
Sterling

I am unable to play a downloaded HD movie from iTunes. SD movies play OK. An error popped up saying something about the display not suitable for HD movies but now all I get is a blank window. I have tried changing the display resolution to no avail.

I have sownloaded an HD movie from iTunes store and when I attempted to play it on my Windows 7 PC a error message popped up saying something about the display not being compatible for HD movies. I have tried changing the display resolution several times but it didn't help. Now it just comes up with a blank screen when I attempt to play it. SD movies work fine. I have the latest version of iTunes installed.
Can anyone help me resolve this problem?

Apparently the display is required to be HDCP compatible to view HD movies in iTunes. My display isn't so this is my problem. I contacted Apple support and they have agreed to credit me for the HD movie and I have now downloaded the SD version.

HT201401 iphone display is stuck in landscape mode in messaging window? how do I fix? Turning phone does not work

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