External monitor with imac not working

Hello.I have problem with external monitor connected to my imac 27 via mini display port to vga connector. It was working perfectly but around month ago it suddenly stopped. It looks like my monitor doesn`t get any signal from imac, at least that`s what is says on external monitor.. also, when monitor is connected my mouse is jumping all over the place. I`ve been looking everywhere but i couldn`t find solution to this problem and i know there are many people having the same issue. Did anyone find solution?

I have my 24" connected to a 32" TV via DVI and have had no problems thus far.
When you open display preferences is the external display detected? If so, try switching between mirror and extended to see if it comes on.
The only other thing I could suggest is to try another VGA connector and/or cable. The fact the mouse goes erratic sort of points to there being the problem somewhere in the connection. You might want to try DVI if your monitor supports it.

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Second monitor on iMac not working with Lion

I have a mid-2011 Thunderbolt 21.5" iMac. A secondary monitor is connected to the iMac with a Mini DisplayPort-to-HDMI cable (a single cable, not an adaptor and cable).
When I was running Snow Leopard, the monitor worked just fine. After upgrading to Lion, the second monitor just has a black screen, and quickly goes into power save mode.
I have already tried resetting the NVRAM (as described here: http://support.apple.com/kb/HT1379) and resetting the SMC (as described here: http://support.apple.com/kb/HT3964).
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same here, just performed the upgrade to Lion and my secondary Samsung screen (direct HDMI cable) do not work anymore (I have a mid 2011 iMac 21.5'').
I have tried the tricks mentioned on the following discussion:
No Signal on HDMI TV After Lion Upgrade
ie open terminal
cd /System/Library/Displays/Overrides/DisplayVendorID-410c/
sudo mv DisplayProductID-0 DisplayProductID-0.old
Reboot after entering the commands
But it is not working, the developper clearly messed up the video output in Lion OS!!!
Let me know if you have a solution, I am reduced to single screen use in the meantime... and regret the upgrade...
Thanks

Encore WT8-A - External monitor doesn't not work

Hi all,
I have problem, when I connect an external monitor to Toshiba Encore WT8-A with an HDMI cable, Windows does not recognize it. I tried to use monitors from Samsung, Philips and LG.I use a standard HDMI cable. The cable is OK tested on other devices.
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Hello gaizkot,
We've an article that can help get your MacBook Air and your display working together.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Cheers,
Allen

External monitor Syncmaster 2494SW not working after 10.6.7 update

External monitor Samsung Syncmaster 2494 SW stopped working after 10.6.7 update on 2011 MacBook Pro. I'm using miniDP-DVI adapter. The monitor shown correctly in Display Properties with right modes and name. MackBook recognizes connection but the monitor goes to PowerSave mode (LED indicator blinks).
Safemode boot, SMC reset, PRAM reset did not help.
Exactly the same setup works perfectly under 10.6.6.

HERE IS THE EASY FIX SOLUTION FOR THIS PROBLEM GUYS:
I have an 15inch MacBook Pro that I've just installed Snow Leopard 10.6.3 on.
Prior to this install, I've had it hooked up to my Samsung SyncMaster 2243 via an Apple MDP/VGA adapter and a third party VGA cable. It has been flashing on and off a black screen every now and then for the past 2 years and I googled that it was just a crappy communication between the MBP and the Samsung... but now since installing 10.6.3, the Samsung display just flashes the desktop for a second then turns black for good - occationally flashing analogue/digtal prompt display. Tried everything for hours. Nothing worked, thought I was gonna have to buy a new all Apple VGA lead then came across Michael's above solution. Tried it and it worked IMMEDIATLY!!! And the monitor doesn't flash black anymore AT ALL!! Whoo-hoo!! Thanks heaps.
WHAT TO DO TO FIX:
Go to => System Preferences => Energy Saver => change graphic settings to Higher Performace.
Cheers!!

External monitor for laptop not working

I just purchased this laptop and am trying to hook up an additional monitor. When I install the HDMI cable laptop screen goes dark and monitor screen remains dark. If I unplug the HDMI cable the laptop screen comes back. If i try to "adjust" the display in control panel i can only see the laptop screen. If I turn off external monitor and turn back on a message saying cable not attached is displayed before screen goes dark. I'm really in dark - need help. Thanks

The F4 was the solution for getting the laptop screen back, but i'm still unable to see anything on the external monitor. I have it recognized in the Control panel and all connections are correct. Could it be a setting with my NVIDIA GTX 950M video card? If so how do i change. By the way i checked the drivers for this and they are up to date. Now only half in the dark! LC

Having issues with iMac not working after sleep mode

When waking up from sleep mode or turning machine on in the mornig computer will not recognize the mouse or track pad. I have a 3.06 GHZ Intel Core 2 Duo.

sudo nvram boot-args=”-p -r” should get the computer to reset the nvram. After words its a good idea, to go back into Apple Menu, System Preferneces, Startup Disk, and make sure your Hard Drive is selected.
Is the OS up to date? if not, why not try running software update?
have you tried repalcing the batteries?
Have you tested with a wired keyboard or mouse? (dose it have the same issue)
Have you tried a safeboot?

If I buy an external monitor (with a res of 2560x1440) will my early 2011 MacBook Pro work ok? And will it be utilising the monitors full res or not?

Hi,
I have an early 2011 MacBook Pro. I use Premiere Pro CS5 to video edit on. It's fine but when it comes to grading it's nearly impossible on such a small screen.
I'd like to buy a 27inch external monitor (Asus, Samsung, Dell, whatever - haven't decided yet) for when I'm editing at work (which is most days). My query is regarding the resolutions. Obviously my MacBook Pro displays a resolution of 1280x800, so if I buy a monitor with a resolution of 2560x1440 for example, what gets displayed?
And also does the connecting cable make any difference? For example, if I'm connecting by Thunderbolt out to HDMI, then an HDMI to HDMI cable to the external monitor, what happens then? Or should I be using a Mini Display Port to Display Port connecting lead?
I guess all I really want to know is, will it work? But also, am I wasting my money buying an external monitor with a 2560x1440 resolution? Should I just go for one that's the same res at my MacBook Pro?
I've never really understood how these things all work!
Thanks in advance for anyones help.
Regards,
Phil

I think it will work. You would need a mini displayport to (single link) DVI adapter to hook up that monitor.
Not sure what kind of problems you had with the ViewSonic but I'm guessing the Dell is probably a better monitor anyhow.

How do i run an external monitor with my macbook and change settings so that when i close the lid the signal to the monitor is not lost and i can continue using the mac with a mouse and a wireless keyboard?

How do i run an external monitor with my macbook and change settings so that when i close the lid the signal to the monitor is not lost and i can continue using the mac with a mouse and a wireless keyboard?

No, nothing will prevent the computer from going to sleep when you close its display except third-party hacks that are designed to do exactly that. I strongly advise against using any of those, as they may interfere with successful entry into clamshell mode (and they carry other downside risks as well). Just wait until the computer is asleep (with its sleep light pulsing), then press any key on the keyboard. It sounds as though your setup is working as it's designed to do.

How can I deactivate Adobe Acrobat 8 on a laptop with a monitor that does not work?

Or is there some work-around I can use? I got a new laptop and have reinstalled the program but I keep getting a pop-up that wants me to register it again. I have but it keeps popping up. I read in the user's guide for this version that "Note: If you want to install the software on a different computer, you must first deactivate the software on your computer: Choose Help > Activation > Deactivate." I figure that that is what the problem is. So now what do I do? It is a little hard to "choose" when the monitor is black.
As an added complication I am now getting an error message on the pop-up that tell me "A problem was encountered while trying to send information over the Internet." Help!!!
I am currently using a Sony Vaio T Series Ultrabook now with Windows 8. My old laptop was a Compaq and was using Windows XP Home Edition. It was about 10 years old.
Thanks in advance for your help.
Aimee

Can you plug in a remote monitor? You may have to use the Fn key with the screen icon typically along the function keys to change to the external monitor. If that works, then do what you need. You might also try putting the HD in another machine and see if it works there.

External Monitor with iTunes - iMac screen goes black

I have an iMac with iTunes 7.7/Leopard and an external VGA monitor (I use the standard Apple mini-DVI to VGA converter) then I use the external monitor to watch video from my iTunes library.
All works well - I have my desktop spread over both monitors, I fire up a movie from iTunes, move the video window across to the external monitor and everything is good - I can watch the video on the external monitor whilst continuing to work on my Mac - the iMac screen displays the Mac desktop as normal.
However, if I put the movie into fullscreen mode (view -> fullscreen on the iTunes menu), the external monitor displays the movie in fullscreen mode as it should, however the iMac monitor goes black.
The only way to fix this is to exit fullscreen mode and go back to one of the view options (rg fit to screen).
Any ideas how I can have my external monitor in fullscreen mode and have my desktop back?
Many thanks
SM

I have an iMac with iTunes 7.7/Leopard and an external VGA monitor (I use the standard Apple mini-DVI to VGA converter) then I use the external monitor to watch video from my iTunes library.
All works well - I have my desktop spread over both monitors, I fire up a movie from iTunes, move the video window across to the external monitor and everything is good - I can watch the video on the external monitor whilst continuing to work on my Mac - the iMac screen displays the Mac desktop as normal.
However, if I put the movie into fullscreen mode (view -> fullscreen on the iTunes menu), the external monitor displays the movie in fullscreen mode as it should, however the iMac monitor goes black.
The only way to fix this is to exit fullscreen mode and go back to one of the view options (rg fit to screen).
Any ideas how I can have my external monitor in fullscreen mode and have my desktop back?
Many thanks
SM

External USB HD does not work with HAL:

External USB HD does not work with HAL:
From the last 10 days the HAL auto-mount with ntfs-3g file system of my external hard drive does not woks.
But the manual mount procedure with the command mount -t ntfs-3g /dev/sdb* /mnt/XYZ works.
I've followed the instructions in the wiki: http://wiki.archlinux.org/index.php/HAL and the system has worked up to the last kernel or HAL update.
My fat32 usb-stick works without any problem.
If I try to open the device with KDE it appears an error popup wit this message:
TODO: have to rethink extra options
Error: kio_media_mount_helper
The log from the kernel.log is
Nov 6 22:03:16 myhost usb 5-1: new high speed USB device using ehci_hcd and address 4
Nov 6 22:03:16 myhost usb 5-1: configuration #1 chosen from 1 choice
Nov 6 22:03:17 myhost Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
Nov 6 22:03:17 myhost ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
Nov 6 22:03:17 myhost Initializing USB Mass Storage driver...
Nov 6 22:03:17 myhost scsi6 : SCSI emulation for USB Mass Storage devices
Nov 6 22:03:17 myhost usb-storage: device found at 4
Nov 6 22:03:17 myhost usb-storage: waiting for device to settle before scanning
Nov 6 22:03:17 myhost usbcore: registered new interface driver usb-storage
Nov 6 22:03:17 myhost USB Mass Storage support registered.
Nov 6 22:03:22 myhost scsi 6:0:0:0: Direct-Access WDC WD32 00JB-00KFA0 0811 PQ: 0 ANSI: 0
Nov 6 22:03:22 myhost sd 6:0:0:0: [sdb] 625142448 512-byte hardware sectors (320073 MB)
Nov 6 22:03:22 myhost sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
Nov 6 22:03:22 myhost sd 6:0:0:0: [sdb] Assuming drive cache: write through
Nov 6 22:03:22 myhost sd 6:0:0:0: [sdb] 625142448 512-byte hardware sectors (320073 MB)
Nov 6 22:03:22 myhost sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
Nov 6 22:03:22 myhost sd 6:0:0:0: [sdb] Assuming drive cache: write through
Nov 6 22:03:22 myhost sdb: sdb1
Nov 6 22:03:22 myhost sd 6:0:0:0: [sdb] Attached SCSI disk
Nov 6 22:03:22 myhost sd 6:0:0:0: Attached scsi generic sg2 type 0
Nov 6 22:03:22 myhost usb-storage: device scan complete
and the error.log is
Nov 6 22:03:22 myhost sd 6:0:0:0: [sdb] Assuming drive cache: write through
Nov 6 22:03:22 myhost sd 6:0:0:0: [sdb] Assuming drive cache: write through
Do you have some idea ....
Bye.

I have done the following:
Downloaded the patched hal version.
used makepkg in /abs/local/trunk/ to create a pkg for pacman
used sudo pacman -U pkgname to install it.
used sudo nano /etc/hal/fdi/policy/preferences.fdi to create the fdi file with the following content:
saved the file and removed my ntfs entryes from fstab and rebooted. and still there is no automount off ntfs partitions.
have i done something wrong?
br fjodork
WARNING: what follows is a guide of what did work for me, I'm still in an early stage of learning linux, so please correct me if anything of what follows is wrong/dangerous/stupid. As I said, this worked for me, it's not pretty, since I was learning each step on the fly and I'm sure there are better ways to do this.
So fjodork, you seem to have done the the necessary steps, though i couldn't get it to work until i first removed hal without dependencies
pacman -Rd hal
it will give you some warning about the dependencies, ignore it since we are reinstalling hal in a few steps.
First i tried to follow Raymano's link, obviously it showed me nothing in the browser so I thought it might be a broken link.
So I downloaded the source tarball from here http://hal.freedesktop.org/releases/hal-0.5.10.tar.gz
unpacked it changed the /tools/hal-storage-mount.c as per Milfadoodle's instructions.
at first I tried to compile directly from source, the process would finish without a glitch though after reboot nothing changed, as if hal weren't
installed, i guess there were issues with paths. anyway read on
Then repacked the source in tarball, copied it to /var/abs/extra/system/hal and modified the PKGBUILD as follows
makedepends=('pkgconfig' 'gperf')
options=('!libtool')
install=hal.install
source=(${pkgname}-${pkgver}.tar.gz #removed url so makepkg looks in the current directory for the tarball
hal
hal-policy.patch
cryptsetup_location.patch
hal-0.5.9-hide-diagnostic.patch
ntfs3g-valid-options.patch)
md5sums=('6641c30a27c00485c6accac5110ff911' # replace with md5sum of your package's sourceball (run md5sum filename)
'882f67668cb14a0a9e4a27ef22278027'
'5ba8b610aa9763a5f42b9f7cbd7a86ad'
then makepkg (i had to add --asroot, don't ask why
and finally pacman -U hal-0.5.10-1-i686.pkg
another reboot and everything worked without a glitch!:D (yeah i know i still haven't got rid of the reboot mentality )
I have also put the policy files as per the wiki instructions.
PS: I know this is a dirty way to getting things done but as i said, I'm just starting
If anyone could comment/correct/explain this post I'd be more than happy, the automount issue was bothering me for about a month now (you'll say why do I need ntfs in the first place? well, I only recently switched for Linux as my primary OS, these are some relics of the M$ era

External USB keyboard does not work with T60 after BIOS upgrade

External USB keyboard does not work properly with T60 after 2.26-1.07 BIOS upgrade.
It does the same with or without the docking station.
Anyone else bumped into this problem yet?
Has someone found any fixes for this?
t

Hi and welcome the forum!
Try uninstalling all USB hub devices from the device manager and reinstalling them again, particularly the keyboard's.
v2.26 is supposed to fix the issue according to lenovo:- http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-63024
Hope it helps.
Maliha (I don't work for lenovo)
ThinkPads:- T400[Win 7], T60[Win 7], IBM 240[Win XP]
IdeaPad: U350
Apple:- Macbook Air [Snow Leopard]
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External Hard Drive does not work with Lion

Hi
My External Hard Drive does not work with Lion this message appears:
NTFS-3G could not mount /dev/disk1s1
at /Volumes/My Passport because the following problem occurred:
/Library/Filesystems/fusefs.fs/Support/fusefs.kext failed to load - (libkern/kext) link error; check the system/kernel logs for errors or try kextutil(8).
the MacFUSE file system is not available (71)
can anyone help?

Hi,
See this Discussion:
https://discussions.apple.com/thread/3191198?start=0&tstart=0
Cheers,

Is there anyway to have an 11 inch mac air connected to an external monitor with lid closed and still be able to see content. I have a wireless ketboard and mouse and have tried everything. Only works when plugged in.

Is there anyway to have an 11 inch mac air connected to an external monitor with lid closed and still be able to see content. I have a wireless ketboard and mouse and have tried everything. Only works when plugged in.

You are referring to a feature called Clamshell Mode, please read Clamshell Mode setup for instructions.
BTW when posting when you use generalities such as "have tried everything" this tells us nothing. When posting please be specific and try to paint a complete picture. It just makes things easier for those trying to help you.

How connect External monitor to iMac?

How connect External monitor to iMac?

How to do that depends on the iMac variant you have. iMacs have been in continuous production since 1998 in four broad families that are not 100 percent alike in behavior.
Please look at the iMac images and descriptions in the links on this site:
http://www.everymac.com/systems/apple/imac/index-imac.html
and tell us what variant you believe you have.
iMacs from the first through third-generations (G3, G4, and G5 processors) that support an external monitor were not set up to do anything other than "mirroring"--you see on the external exactly what is on the built-in display.
Your description sounds like you have a newer iMac than this forum covers because, starting with the Intel iMacs in 2006, external monitors were allowed to do both mirroring and "extended desktop." The latter is what I believe you are seeing.
Try this first: press the F7 key. On many Macs capable fo using external monitors, this was a shortcut to toggle between mirrored and extended display. If your keyboard has an "fn" modifier key, you may need to press that to get the F7 key to work.
If you have an intel-powered iMac I can ask the Hosts to move you to that forum, which is much more active than this one which is for pre-2006 iMacs.

External monitor with imac not working

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