Why can't I get an external HDMI display after upgrading to Maverick?

I've been hunting all over for an answer to this problem. I upgraded to Maverick in the fall and recently discovered that I can no longer get a picture on an external TV via Thuderbolt + HDMI. I've used new connectors and cords. Apparently others are having similar issues after upgrading.
I've tried the SMC reset option, but it has not rectified anything. I've unchecked the "display as separate spaces" option. Nothing seems to work and I've searched all over the support community for the answer, which can be extremely daunting.
Allen

You said you have a workstation with 4 drives, not a notebook.
And you have not reformatted in years.
Just clone Mac OS X Lion (and Lion Recovery) to anotehr hard drive with Carbon Copy Cloner.
Cloning as a Backup Strategy
Or backup and erase the DRIVE, like WDxxxxx and not your "Macintosh HD" volume and restore.
Reformatting is a good idea when moving to a new OS and lot of changes to partition structure go on each time, sometimes even mid-stream of a version.

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When i upgraded my IOS. I always find it hard to continue my search in internet. I need to turn off the wifi connection then on it after wards even though using the laptops and other mobile phone with wifi have a very good signal. Just like this message, i need to off it then turn it on again.

Try:
- Reset the iPod. Nothing will be lost
Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Power off and then back on your router
- Reset network settings: Settings>General>Reset>Reset Network Settings
- Reset all settings
Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
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PowerPC apps and the Rosetta software are no longer supported.
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http://www.apple.com/asia/rosetta/

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Hey Starmanpaul43,
If you haven't already, I would run through the steps in this article, which can help you troubleshoot the external monitor issue:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Welcome to Apple Support Communities!
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Why can you NOT get a straight forward answer on upgrading to Edge?

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Why can't I get a full screen display on my programmes

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Why can I transfer my movies to my ipad after upgrading to iOS 7.

Hi have an ipad 2 which has always worked great, until I upgraded to iOS 7 and now I can't transfer my movies to the ipad from iTunes.
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That's a very helpful description of the problem and now. I wish I could be as helpful in return. Unfortunately, I know next to nothing about syncing home movies or personal videos. I have synced several of my own, but it always went without issue.
Some basic things that I can think of are ....
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You did say this was a new problem so can I assume that the movies were appearing in the videos app?
I have read where some users reclassified videos in order to get them to sync. After using the Get Info command in iTunes, they would classify a video as a TV show for example in order to get to sync. Forgive my ignorance on this, but like I said, I have very limited experience with this and I am trying to recall exactly what the process was.
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Hi curterb,
If you are having issues connecting to the iTunes Store, you may find the following article helpful:
Apple Support: Can't connect to the iTunes Store
http://support.apple.com/kb/TS1368
Regards,
- Brenden

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You said you have a workstation with 4 drives, not a notebook.
And you have not reformatted in years.
Just clone Mac OS X Lion (and Lion Recovery) to anotehr hard drive with Carbon Copy Cloner.
Cloning as a Backup Strategy
Or backup and erase the DRIVE, like WDxxxxx and not your "Macintosh HD" volume and restore.
Reformatting is a good idea when moving to a new OS and lot of changes to partition structure go on each time, sometimes even mid-stream of a version.

Why are both my Mac's so slow now after upgrading to Mavericks?

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The upgrade was done over a dysfunctional system. Do this:
Fixing a Mavericks Installation Problem
How to manage a failed OS X Mavericks installation | MacFixIt - CNET Reviews.
Re-download and reinstall Mavericks.
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion/Mavericks: Select Reinstall Lion/Mountain Lion/Mavericks and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

Can't use Canon iR C4580i to print after upgrading to Mavericks

Can anyone help to solve the problem?
I have tried to download the driver version 10.2.0 but still cannot use canon iR C4580i to print.
Thanks

Hey WKWF,
Thanks for the question, and welcome to Apple Support Communities.
The following article provides relevant troubleshooting information for your issue:
Troubleshooting printer issues in OS X
http://support.apple.com/kb/TS3147
USB printers and Bonjour-enabled network printers
Follow these steps until the issue is addressed:
1. Make sure that the printer is powered on, has ink / toner, and that there are no alerts on the printer’s control panel. Note: If you cannot clear an alert on the printer's control panel, stop here and check the printer's documentation or contact the manufacturer for support.
2. Ensure the printer is properly connected to a USB port on the Mac or AirPort base station / Time Capsule. If the printer is a network-capable printer, make sure that it is properly connected to your home network.
3. Use Software Update to find and install the latest available updates. If an update is installed, see if the issue persists.
4. Open the Print & Scan pane or Print & Fax (Snow Leopard) pane in System Preferences.
5. Delete the affected printer, then add the printer again.
If the issue persists, try these additional steps:
1. Reset the printing system, then add the printer again.
2. If the issue still persists, reset the printing system again. Download and install your printer's drivers. Then, add the printer again.
3. Contact the printer vendor or visit their website for further assistance.
Thanks,
Matt M.

I have a new macbook pro and an LG w2361v monitor. The max resolution the mac is allowing me to set is 1400x1050, why can't I get to the max resolution the monitor can accept (1900x1080)

I have a new macbook pro and an LG w2361v monitor. The max resolution the mac is allowing me to set is 1400x1050, why can't I get to the max resolution the monitor can accept (1900x1080)? I know that the monitor is able to accept this resolution but It can't seem to find it. Is it something to do with the new thunderbolt port? or the fact that I'm utilizing the VGA adaptor? I could go HDMI if that works better.

Use DVI or HDMI.
VGA runs out of steam after a while.

TS1717 This article is vague and unhelpful. My iTunes needs help from a pro. I have over 120,000 songs -- NO movies, TV, radio, or books... I have other programs which efficiently run things which are not audio-based. So why can I not get iTunes working w

This article is vague and unhelpful. My iTunes needs help from a pro.
I have over 120,000 songs -- NO movies, TV, radio, or books...
I have other programs which efficiently run things which are not audio-based.
So why can I not get iTunes working well?? It now takes at least 10 secs for any operation to be completed!
That is just plain evil. But I am sure I could do something to help.
All the music is on an 2T external drive.

TS1717 as noted in the thread title...
Brigancook, is the library database on the external or just the media? iTunes reevaluates smart playlists and rewrites its database after every action on the library. I've found this can make a library half that size, with a lot of smart playlists, quite sluggish. That said I'm aware part of my problem is aging hardware. Having the database on the internal drive may improve performance if it is currently on the external.
I'd expect to see an exponential relationship between size and response time which may explain what you see. Cutting down on the number of smart playlists might help. If we're really lucky the long awaited iTunes 11 might have streamlined some of the background processes as well as cleaning up the front end.
tt2

Why can't I get an external HDMI display after upgrading to Maverick?

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