Mac Mini no longer able to display full screen on TV display.

I had my mac mini set up correctly with my Samsung 50" tv - using the "Best for display" option within system preferences - Display. I left the computer on overnight and in the morning the screen was messed up. Now I can only see the full screen, with menu bars at the top of the display, if i set preferences with the lowest available resoltion of 720p and using the Underscan option too. Any advice on what went wrong and how to get back to the best setting?

Hey there Slackbast,
It sounds like you are having some graphical issues when you have a TV connected to your Mac Mini, but it used to work fine. I recommend the troubleshooting from the 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 systemYou can reset the Mac's parameter RAM and SMC.Reset the resolutionStart 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.
Regards,
Sterling

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Hi everyone .
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Also I what to run the sims 3 game on it . I see that some of the older mac mini will not run with gma -950 series graphic card thats built in to the older ones . Only the newer made mac mini machines . I see that apple dont have any newer style mac mini left for sale right now . So ether I have to spend 600.00 dolars at the apple store off the shelf . But I dont want to do that right now . so I have to wait for now .
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Thanks for responding to my post but Thats somewhat what I was looking for . The Main question I wanted to no Did anyone out there Have a mac mini hooked up to a 30 inch screen. I need to no if the screen will have the same resolution as my power mac g5 1.8 dual with a Nvivia 6800 GT with duallink video card . The card I have from nvivia has a max resolution of 2560 x 1600 at it maxed out .
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But back I'm done lashing out at apple for now .So as it stands I buy a apple mac mini or a dell hybrid small computer windows based by dell 499.00 us dollars . or a apple for 599.00 dollars at the apple store .But the downside is that in the future it may not be able to play the new games in three years or so and be out of date . WE waist more electronics in this country than any country in the world . But I'm not the first person encounter this problem . There's many more people that still have the g5 line and like there true mac computer not this fake intel machine . Why did apple do this in the first place start with a intel chip in there computers in the past not goto IBM to buy there chips ?. If this was done in the first place we would be better off right now .
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bwhit:
Welcome to Apple Discussions.
No reason why you should not be able to do it using Firewire Target Disk Mode. Here's what you do:
1. With both computers shut down connect both via firewire.
2. Startup the Mini and hold down "T" key immediately after chime.
3. Startup the PB and immediately after chime hold down Option key.
4. Select second HDD icon on the screen and click on the right pointing arrow.
5. Computer will boot from Mini's HDD.
Be sure to shut down PB completely before shutting down Mini.
Please do post back with an update or with further questions or comments.
Cheers
cornelius

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No idea if Windows will do it, but you can run Windows without Bootcamp & have OSX available at the same time, which should give you all the Monitors that OSX uses.
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http://www.parallels.com/
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http://www.vmware.com/mac

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hermanherman, welcome to Apple Discussions. Generally when this type of issue crops up it can be corrected by starting up in Safe Mode. To start the mini in Safe Mode, after pressing the mini's power button, immediately press and hold down the Shift key on the keyboard until you see a message on the display that Mac OS is starting in Safe Mode. When you see that message you can let go of the Shift key. Hopefully you will have a useable screen at that point. Go into Displays preferences and select your desired resolution. Then restart the mini normally (don't hold Shift) and hopefully your last resolution setting will persist and you will have your screen back.
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Hardware Overview:
Model Name:          Mac mini
Model Identifier:          Macmini3,1
Processor Name:          Intel Core 2 Duo
Processor Speed:          2.26 GHz
Number Of Processors:          1
Total Number Of Cores:          2
L2 Cache:          3 MB
Memory:          4 GB
Bus Speed:          1.07 GHz
Boot ROM Version:          MM31.0081.B06
SMC Version (system):          1.35f0
NVIDIA GeForce 9400:
Chipset Model:          NVIDIA GeForce 9400
Type:          GPU
Bus:          PCI
VRAM (Total):          256 MB
Vendor:          NVIDIA (0x10de)
Device ID:          0x0861
Revision ID:          0x00b1
ROM Revision:          3362
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VGA Display:
Resolution:          800 x 600 @ 60 Hz
Pixel Depth:          32-Bit Color (ARGB8888)
Main Display:          Yes
Mirror:          Off
Online:          Yes
Rotation:          Supported
Display Connector:
Status:          No Display Connected (Ed: There is definitely a display connected. I'm using it to file this report.)
System Software Overview:
System Version:          Mac OS X 10.6.8 (10K549)
Kernel Version:          Darwin 10.8.0
Boot Volume:          Macintosh HD
Boot Mode:          Normal
Computer Name:          siracusa
User Name:          Christopher Rossi (chris)
Secure Virtual Memory:          Not Enabled
64-bit Kernel and Extensions:          No
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It's unlikely that the upgrades had anything to do with the problem, slim superdrives are just not all that reliable.
You might try a few tricks before taking it in for service or springing for a Mac compatable external DVD drive.
1. Reset the SMC > Resetting the System Management Controller
2. Reset the PRAM > Resetting your Mac's PRAM and NVRAM
3. Clean it, for example with a > Memorex OptiDisc CD/DVD Laser Lens Cleaner

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Thanks!

If you want to run the LCD at it's high 2560x1600 resolution, then you have absolutely no option whatsoever than to buy a PowerMac or MacBook Pro. Otherwise, you will be able to run the panel at 1280x800 with the Mac mini, which wouldn't make much sense though.

Want Mac mini and G4 to share Display and USB keyboard and mouse

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The KVM switch wants 3 ports on each computer: a VGA (monitor) port, the keyboard port, and the mouse port; but the keyboard/mouse connectors are not USB.
As things stand--without the switch--I can shut down whatever computer I'm working on (mini or Cube), unplug the display from one, connect it to the other, power up and everything's fine. I suppose the only advantage with the KVM switch is being able to power off, switch, then power on without having to move the display plug.
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I had the same problem, and finally came up with two other alternative solutions.
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Hi,
I never have had issues with the nre Mac Mini I bought. It is only 2 months old now. Last week when I turned on my Mac Mini, the keyboard no longer is recognized. I have tried to switch batteries, restart the computer but no matter what I do, it just wont recognize the keyboard. It doesnt even come up on the discoverable list.
The keyboard has a green llight when I activate the power button, so its not the keyboard issue. I have paired it with my laptop just to see if its the keyboard issue.
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I figured it out. By deleting all the seached keyboards on all my macs I was able to then find it on the Mac Mini.

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Sometime ago (maybe about two months), my Mac Mini quit working with my LG Plasma HD TV. Currently, when I try to use the Mac Mini with the television, the screen displays a "no signal" message.
The Mac Mini is a one year old Intel Core Duo and is connected using a DVI to HDMI cable.
I've troubleshooted:
1. Connected the Mac Mini to our 42" Sharp Aquous LCD - it displays fine.
2. Taken the Mac Mini to the Genius bar. It displayed on the genius' Apple display w/no probs.
Since then, I've tried:
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2. "Driving" the Mac Mini via Screen Sharing using my MacBook and monkeying with the Display preference pane. While screen sharing, I tried using SwitchResX, too (not too certain of the settings though) - No luck.
Of note:
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I'd be interested in any resolution here. Here's my story:
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press On Button->
Apple Boot Screen->
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desktop For About 1 millisecond->
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Thanks.
Mac Mini G4 Mac OS X (10.4.8)
Mac Mini G4 Mac OS X (10.4.8)

It's perhaps telling that the problem occurred after the system forced a reboot. That tends to suggest there's a significant fault - likely hardware, since if the issue was with MacOS it would not be likely to cause the fan to ramp up to full speed on startup with the screen showing nothing.
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Assuming a PMU reset doesn't help at all, and since the system doesn't show any display, it's not worth trying to boot from the original install disk to run the hardware test since the system isn't even managing the power on self test, thus won't move on to loading MacOS. At that point, I'd say you should take the mini to an Apple store if you have one in your location, or to an Apple authorized service provider for them to give you an idea of what is wrong and what it would likely cost to repair it.
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Mac Mini no longer able to display full screen on TV display.

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