Mac Mini, HDMI option problem

On my Mac Mini,In sound output options I cant select HDMI for my TV since upgrading to Mountain Lion

I was able to get sound form my VIZIO GL47L after a reboot when using it as the only display. However, audio does not work for me when running dual displays.
I am thinking I will most likely break down & buy an AppleTV and Airplay mirror it.

Similar Messages

Mac Mini HDMI Output Problem w/ LG L246WP

NOTE: This appears to be unrelated to the "screen flickering" that has been noted previously.
I'm using a fresh new Mac Mini 2012 with an LG L246WP LCD monitor. The monitor has HDMI, VGA and Component video inputs.
When I attach the monitor to the Mini DisplayPort output, using a Mini DisplayPort to DVI adapter connected to a DVI to HDMI cable, the display functions properly at all resolutions - including the native 1920 x 1200 resolution that I use it at normally. All resolutions are clearly displayed in the "Displays" System Preferences pane. The display looks perfect, functions properly.
When I attach the monitor to the HDMI port using an HDMI cable, the display does not fucntion properly. The display is shifted about 80-100 pixels to the left and about 20 pixels up, creating black bars on the bottom and right sides. Because of this, a large portion of the display is not visible including the menu bar and most of the left side. Additionally, the settings are reduced to "Best for Display" or "Scaled", with resolution options under "Scaled".
This is not acceptable. I had planned on simply using the Mini DisplayPort output as a workaround, since I already have the DVI adapter from an old setup, but I need to use Thunderbolt to access external hard drives for rapid data transfer. One of my Thunderbolt accessories does not have two ports, so I can't simply add the Mini DisplayPort adapter to a chain. The HDMI port needs to function properly with my monitor.
It's important to note that this monitor has functioned properly with many other comptuers running OS X, Windows and various Linux flavors and it hasn't ever done this before. I've tried several different HDMI cables, ruling that out as a problem. I've tried the HDMI to DVI adapter that ships with the Mac Mini 2012 along with two different DVI to HDMI adapters, ruling that out as a problem. I tried attaching several HDMI devices (game consoles, DVD players, etc) and they all function properly, ruling out an HDMI issue as a problem. The monitor functions properly when attached through the Mini DisplayPort to DVI adapter, so it's not a problem with the monitor. I've reset the PRAM already and the installation of OS X 10.8.1 is stock with no modifications or migrated data. I've tried the suggestions on the HDMI FAQ (although there's no "underscan" option available in Displays)
I tried to call AppleCare and after describing the problem I got disconnected with no callback. I started another ticket, described the problem, discussed the previous disconnection, was assured that I'd be called back if disconnected, and haven't heard back in two hours. So I started to dig into the problem in earnest.
This gets pretty technical.
After substantial research, it appears that this issue is related to the EDID that the monitor sends to the computer and, crucially, the way that the driver responds to it. For some reason, the HDMI port is recognizing the monitor as a CEA device instead of a monitor. As a result, it's restricting the monitor's available resolution to the native resolution that the CEA 681 Series Extension describes ("Best for Display") and all other resolutions (including 1920 x 1200) are only available as "scaled". For some reason that I can't discern, all resolutions (even the 1080i and 1080p options) have similar deformities.
I've attempted to fix this by placing an appropriate override file in /System/Library/Displays/Overrides with an edied EDID removing the CEA-enable flag from byte 127 but, even after a reboot, the OS still insists that it's a CEA device and it won't allow me to force it to recognize the monitor as a 1920 x 1200 LCD Monitor.
How did I come to this conclusion and develop the fix? A nearly identical problem description showed up on the following website, with details on how this user fixed the issue:
http://byuu.org/articles/computing/edid
They used a convoluted process that involved dismantling the monitor and flashing the EDID on the monitor itself. It fixed their problem. I'd prefer not to go through that process just because one computer has a problem with it. Frankly, I'd prefer if the new Mac Mini performed properly in the first place.
TL;DR: The Mac Mini 2012 doesn't work right with the LG L246WP through the HDMI output. Everything else works fine with it. This is very uncool. It's most likely to be an issue with the driver for the Intel HD Graphics 4000 GPU that are bundled with OS X 10.8.1. The Mac Mini 2012 won't update to 10.8.2 (yet), so I can't test it.
Anyone have any other ideas? Anyone else using a Mac Mini 2012 (or 2011) with an LG L246WP monitor? Anything simple I've missed?

Problem Resolved. But it was complicated. And a huge pain in the rear.
TL;DR: I flashed the EDID as described here. This is not recommended for the weary. Ideally, Apple should release an update OS X that will include the updated Intel HD Graphics 4000 drivers that utilize the CEA flag properly.
Here's the detailed version. As mentioned above, this isn't recommended for the weary. An improper (or interrupted) EDID flash can have seriously unpredictable effects on a monitor's performance.
Step 1: Get a Windows PC set up with a floppy drive and find a floppy disk. Use this system to format the floppy as a MS-DOS Boot Disk and copy over the "ddcw" program described at the aformentioned link.
This took awhile, but I was able to cobble together a temporary frankensystem with parts I had laying around. In installed XP and formatted the disk with XP's format tool.
Step 2: Grab EDID data from the monitor, modify it to disable CEA mode at bit 127 and make sure bit 128, the checksum, is appropriate.
This also took awhile. Several graphics cards I tried could not read or write EDID data. I ended up swapping AGP cards in my frankenstein box until I found one that worked - a generic GeForce4 4200.
Once the EDID data was written to the floppy, I edited the text file containing the EDID data to change the last two hex octets from "01 33" to "00 34" (00, to disable bit 127, and 34 is 33 + 1, which satisfies the checksum) and formatted the text file to match the sample included in the EDID_Write.zip file. Your mileage may vary - make sure the checks.
Step 3: Write EDID data to the monitor.
The link above mentioned three options: Easy (monitor's EDID is unprotected - write away!), Hard (monitor's EDID is protected - use service mode to attempt a fix), and Very Hard (monitor's EDID is protected, hardware modification is required).
Luckily my LG246WP simply needed to be put into service mode as described at the link above (menu + power) and once started up in service mode, I simply enabled "Aging Mode" (whatever that means) and attempted a DDCW write of the updated data.
Step 4: Profit!
After doing this, I powered off the monitor and powered it back on with the Mac Mini attached. The display functions PERFECTLY with HDMI out, just as it does using the Mini DisplayPort to DVI adapter.

Problem switcing Mac Mini HDMI via an Onkyo 606 Receiver

I'm having problems when attempting to switch my Mac Mini HDMI via my Onkyo Receiver. Connecting via a DVI to HDMI converter. Works fine when connected directly to the TV.
When connected via the Onkyo, I get the Apple logo at the begining of the boot-up process, but when the screen would ordinarily switch to my desktop background, the screen goes blank.
Any suggestions?
John.

Do you have a second computer at your disposal? In cases like this, the best debugging method is to use a second computer and create a screen sharing setup under OS X Leopard, or a VNC set up if the second computer is not a Mac running Leopard. That way you will be able to see exactly what the mini is doing, even though the TV is blank.
Probably, in the end, you are going to need something like Gefen's DVI Detective to get HDMI switching to work the way you want it to.

2011 Mac Mini HDMI only 2Ch Stereo

Wow is this frustrating. I've had my Mac Mini for about a week, and for the life of me, cannot get surround sound working via HDMI. I've read so many posts about people with this problem but I can't find a definitive answer for a fix. All I want is for the Mac Mini to passthrough the audio so that my Pioneer Receiver can handle all of the Dolby stuff.
Setup is simple -
Mac Mini ------> HDMI -------> Pioneer VSX-1020 Receiver --------> Samsung 55" LED
Inside of the Midi Audio options, it shows my receiver as the audio device, and I have all of the options for 2ch, 8ch, etc. I also selected Dolby 5.1. I can only get PCM or Stereo to display on my receiver while ticking through these channel options, while I would expect Dolby to display if it is receiving a Dolby signal. Also, when I do the test tones in the Configure Speakers area, I get the correct test tones from all channels. BUT.........
No matter what I play whether it be iTunes, VLC, etc, I am only getting 2 channel sound and my subwoofer.
Can anybody help?? This seems like such a simple task yet it has me pulling my hair out.

ive had my 1021 for about 2 months and i think its great. Do you like yours?
i have 5.1 using optical cable to one of the optical in ports on the 1021. But you will need an optical-to-miniOptical adapter tip to use in the mini.
then make sure that any app through which you want 5.1 has that specified in its prefs. (like VLC)
VLC always has the option ' out through system', and if the system is optical out, then 5.1 will pass.

Mac Mini HDMI - Stuck CD

Hello,
I have a CD stuck in my new Mac Mini HDMI.
* It does not appear in the Finder as a CD.
* Disk Utility shows the CD drive itself, but all options for eject, format, etc are all greyed out.
* Booting with the mouse button down does not work (I have a bluetooth keyboard; however, I selected to stop using it and connected a wired keyboard)
* Booting with C down does not work
* Booting with Option down until getting to the firmware boot disk selection menu, then pressing / holding the eject button does not work
* I used the Terminal command "drutil eject", the drive makes the eject noise, but nothing comes out
* Tried System/Library/CoreServices/Menu Extras/ double clicking Eject.menu - the menu only has a greyed out drive listed
I think that's everything I've tried. Please let me know if there's anything else I can try.
Thanks for all your help!

I figured out the 'problem'
Let me pre-face it by saying, my wife originally emailed me at work talking about this disc she couldn't get out.
Flash forward to now. I was fishing around with my work badge (thin hard plastic) and I couldn't feel anything that felt like the edge of a disc. So, after getting up the nerve I took a blank DVD, and slowly let the drive catch it and pull it in. Loaded up just fine.
I guess the "Stuck CD" must have evaporated
Good new is, I now know every single way to get the disc out should this happen to me for real (short of completely disassembling the Mac Mini). For now, all I can do is laugh (quietly so my wife doesn't hear).
Thanks for helping out Boece!

2014 mac mini dual monitor problem

I just brought a mac mini (Late 2014) i have two displays monitors connected, one HDMI to DVI. and one thunderbolt to DVI. I can have both thunderbolts connected and the problem its the same, when back from sleep ,one monitor doesn't turn on. i have to disconnect one and then both work, it only happens when the mac goes to sleep. on cold restart or turning the mac on, this problem doesn't occur. any help.

I have this same problem too. I purchased the Mac Mini with the intention of running dual monitors. I'm using the HDMI and mini-display/Thunderbolt to DVI. I've also tried MiniDisplay/Thunderbolt to HDMI and I'm experiencing the same problem as angelfromfullerton. Whenever it tries to wake from sleep, it can't decide on monitor arrangement and keeps flicking between the two, making the OS unusable and forcing a reboot... EVERY TIME. I've also experienced the issue once or twice on a cold boot. It doesn't matter which Thunderbolt port is used either.
I'm going to have to return my Mac Mini unless this problem is fixed asap.
Mac Min, OSX Yosemite (10.10).

Mac Mini with Major Problems

I'll try to make this short, but it is a looonngg problem.
About one month ago my Mac Mini began having problems when I boot up. The computer would freeze on the opening page where I put in my password. My wireless keyboard and trackpad would not work. This would be interminent at first but progressively got worse.
I spent hours on phone tech support. Finally realizing that would not help I drove the 100 mile round trip to the local Apple store for a Genius bar appointment.
The first appointment (there have been 5 - meaning 500 miles) resulted in them doing a clean install of Lion. I took the computer back to the office and guess what, the same problem.
I drove back to the Apple store, the Genius did some more work and proclaimed it fixed. It was, for about 3 days when everything started again.
More time now on tech support. One more trip to the Apple store.
This time they kept the Mac Mini for about 4 days are replaced the logic/mother board.
I got it back to the office on Thursday. Everthing works great.
Until today. I boot the computer, it gets to the screen that has the apple on it - then nothing.
I manually power it down and reboot. Same thing.
I've set up ANOTHER appointment at the Genius bar tomorrow.
My question: can I demand that they replace this machine. Between work and home I have 2 Mac Mini's, a Macbook Pro, a Macbook Air and 2 iPhones. I've never had this type of problem. I'm really tired of this.
I purchased this in February so it is in warranty.
Thanks

rwgleaves wrote:
I took it to the Apple store Genius bar today - my 5th trip - and they did just what I'd hoped. They replaced the Mac Mini with a brand new machine.
This is why I buy Mac/Apple!
Excellent new, sorry you had so much trouble on the way. And yes, Apple Stores are awesome!

Strange problem with mac mini hdmi, denon avr 3310 and itunes

Hello,
I just bought the new mac mini with HDMI. It is connected via HDMI to my receiver Denon AVR 3310. The receiver shows that it has "multi channel in" on the display.
I made all the configurations so that i can watch dvd an the mac mini. When i play a movie with Dolby Digital the receiver does show that on the display and playback is possible without any problems. I hear sound on all my 5.1 speakers.
The big problem is with iTunes. When I want to watch rented series, for example Dr. House, only 2 speakers of my 5.1 are used. And when I change to surround in iTunes I can only hear static noise.
What is the problem? Did I make a wrong configuration or is something wrong with iTunes?
Thanks in advance

Great news! My Mac mini is sending true 5.1 to my reciever through the HDMI cable! Okay so here's my list of gear.
MAC MINI 2011 2.5 i5 8gb ram
Using a quality audioquest hdmi I have connected my Mac mini to my Denon 1712 Reciever. I have connected this hdmi cable into hdmi port entitled game 2. I have connect my reciever to my tv with a monster 1000 hdx thx certified hdmi cable. It has a transmission sped of 17 gb or so...meaning it can handle transmitting 3d...if only I had a 3d tv.
Okay so that's the gear. Now onto the changes in audio midi. Open audio midi and Simply change it to 48000 hz and to 2 channel 16 bit integer. That's all I did and now it works. Before I had it set to 8 channel 24 bit and when I pulled up my surround sound options I could pretty much only get multi channel stereo. Now I can get several Dolby choices.
The voices are coming out of the center speaker and all the action is coming out of the other speakers....so in other words 5.1 surround sound has been achieved on my Mac mini 2011 which has Lion on it.
I have tested this with iTunes and Netflix. Both are in 5.1 and sound great. In iTunes I have tested both music and digital copies of movies. Both worked flawlessly.
Rejoice Mac mini owners 5.1 surround is now possible over your Mac mini 2011 edition with just an hdmi cable to your reciever. You can throw away that toslink cable becuase now you don't need it!
I hope this works for you. Remember not all hdmi cables and the same holds true for your reciever. If it does not work consider getting either audioquest or monster....everything else is junk.

HDMI On Mac Mini Late 2012: Problem with hardware?

Just converted from PC to Mac.
Purchased latest mac mini (Late 2012 version)
Have tried several monitors through HDMI port and each time the picture quality is poor with very bad text resolution.
Have tried HDMI to HDMI and also tried HDMI to DVI adaptor.
This is with full 1080p 27 inch samsung monitor and HP 2010i monitor.
Is there a problem with the HDMI port on this new mac mini?
The monitors I have are fine and are crystal sharp when connected to PC.
Many thanks if you can answer this

OK. So I have now tried LG 27 Inch E2742 Monitor as follows:
1) Mini display to DVI-D : Picture good with decent text resolution
2) HDMI-HDMI: Picture poor with poor colour and text resolution. This is not a calibration issue.
The samsung monitor 27 inch series 3 also has poor picture and colour and text resolution with HDMI-HDMI. Again this is not a calibration issue. It does not have a DVI-D input to test the minidisplay port.
So it seems the HDMI port is not working properly but the minidisplay one is ok as I suspected.
From reading the other threads it seems this is a common problem including those people that have taken their minis back for an exchange and experienced same problem.
Is there likely to be a software update to resolve this?

Mac mini 2012 - Video Problem (Not HDMI Flickering)

Hello guys,
I have a problem with video, it causes to shut down the monitor while is playing Chefville in facebook, i had no idea why would to turn off monitor. It doesn't present any "beep" sound, it seems Intel HD4000 is a defective.
I waited like 15 minutes when mac mini is cooling, i pressed a button to turn on, the monitor works.
I think it's overheating Intel HD 4000 cause to shut down the monitor.
How to prevent this problem?
Thanks!

Get Temperature Monitor to see if it's heat related...
http://www.macupdate.com/info.php/id/12381/temperature-monitor
Does it use Flash or Java?
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons

Mac Mini Mid 2011 problem getting 2560 resolution

I've been told that Mac Mini 2011 would support 2560 resolution however I cant get it to work.
Here is background story.. i used to run this MacMini on a cheap 26" acer using apple Minidisplay adapter to dvi input to Acer.
I ended up buying two 4K Samsung U28D590D in hopes this would be a plug an play affair as Samsung comes with display port and i can simply run a display port to mini display cable. This ended up being true for my wife's macbook Pro (about 6 months old) connected it and runs 2560 no problem, picture is perfect!
Using the same concept and cable on MacMini does not work at all, monitor does not display any picture. If i use HDMI to HDMI ill get 1920.
I also have an additional monitor "Shimian" that is a DVI-D monitor supporting 2560 which i ran on a PC using Geforce GT 610 and ran 2560 no problem. When using Minidisplay adapter to dvi same problem, it does not work at all. (unless apple sells different adapter minidisplay to DVI or DVI-D?)
i'm trying to figure out if this is a hardware problem on Macmini that does not allow this resolution to be supported?
Any help is greatly appreciated!! Here are system specs on MacMini(running upgraded ssd) and Macbook pro.
Thank you all!!
Model Name:   Mac mini
Model Identifier:       Macmini5,1
Processor Name:        Intel Core i5
Processor Speed:        2.3 GHz
Number of Processors:           1
Total Number of Cores:         2
L2 Cache (per Core): 256 KB
L3 Cache:      3 MB
Memory:        8 GB
Model Name: MacBook Pro
Model Identifier:      MacBookPro11,1
Processor Name:       Intel Core i5
Processor Speed:       2.4 GHz
Number of Processors:          1
Total Number of Cores:        2
L2 Cache (per Core):            256 KB
L3 Cache:      3 MB
Memory:        8 GB

The 2011 Mac Mini supports:
Display Support:
Dual Displays
Resolution Support:
1920x1200*
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).
What resolution (x by y) do you get via Mac Mini> mini displayport>Displayport cable>Monitor?

Mac Mini 2011 - Monitor Problems - Help

My picture is not sharp... just blury. Icons, pictures, text, mostly everything is bad except high quality video files.
I just purchased a Mac Mini 2011 second option and a Samsung TA531 monitor that arrived today. Hooked it up and to my surprise, it is blury and bad quality no matter what kind of resolution i use. I also try to text smoothening through terminal.. nothing helps.
My setup:
Mac Mini 2011 - second option stock
Samsung SyncMaster T27A531
Cable: HDMI
After reading about this issue, some people recommends to use a DVI or VGA cable and claims that HDMI is not suitable for computer monitors, especially Samsung.
Please, feel really sad and lost among a lot of new computer equipment that doesn't work properly

I had the same issue and didn't want to give up my Thunderbolt port, so I opted to get a Gefen HDMI Detective Plus. What this does is make the CPU think an HDMI display is attached so that your graphics CPU 'unlocks' and full speed is back. The Gefen box can either 'learn' the code of any HDMI display in your office/home, or you can preset it as a stock 1080p display. TOTALLY solved my problem... even though it did cost $85.
Apple needs to fix this as so many people use the MINI headless.
http://www.gefen.com/kvm/ext-hdmi-edidp.jsp?prod_id=8005

Mac Mini HDMI port broken?

I have a Mac Mini Mid 2010 that has been acting as a media center / small file server. It's been running Plex, FTP and VPN services. It has been hooked up to a Pioneer VSX-921 receiver with a HDMI cable since day one, and it's been working beautiful.
Then yesterday evening, switching to the input of the Mac Mini, I got "no signal". I double checked all connections, made sure the computer was actually running using remote desktop. Everything seems fine. I switched the HDMI cable with an Apple TV i have in my bench as well, the cable is fine.
So I went looking for problems on the Mac Mini. Under displays, I no longer have any HDMI option for output. Same with audio. It's as if the computer simply doesn't have an HDMI port any more. I've tried the classics PRAM, NRAM and SMC. I've checked for updates. Nothing so far.
I'm slowly coming to realise maybe my motherboard has gone bust. As the computer is over two years old, it's well beyond Apple warranty, and it's a month over the extra year long european consumer law, so I'm not expecting to get much help from Apple. Especially since I've installed my own SSD in the Mac Mini. That was done in the first few weeks, and everything has been fine for two years since then, so I do not believe that matters. But they will.
So, before I do anything else, like consider reinstalling the computer, getting a new motherboard, throwing it out or buying a new one. Is there anything else I should be checking before proceeding?

Further testing shows the Mini DisplayPort doesn't work either. It shows an extremely grainy (in a digital way) white with the Apple logo on boot, but then stops sending signal. So basically the only way for me to access the computer is via remote desktop, which also makes it impossible for me to re-install the computer. Worste case, I'm locking myself out of my own computer.
I'm quite convinced the motherboard is to blame at this point. Weird how it can just break like that. Nothing was changed, no cables touched, the computer hasn't moved for 24 months. Damnit.

Mac Mini HDMI into AV HDMI Switch - Lose sound when monitor is shutoff

I'd like to use the Mac Mini to listen to internet radio and have the display shutoff. I have the Mini's HDMI output cable connected to Yamaha audio video home theater receiver that acts as a HDMI switch from various HDMI inputs (blue ray player, xbox, and mac mini). A single HDMI output from the av receiver goes to my Samsung flat screen TV.
All works well (I have the system preferences sound option set to hdmi on the Mini) until I shut off the TV. Then the sound that was going to the AV receiver shuts off and the mini switches its sound output back to its internal speaker.
Can't find a way around it. Appreciate an answer if anyone has one.
Reading the booklet that came with the Mini regarding HDMI output, it appears that Apple assumes that cable is going directly to a monitor. I'm wondering if the Mini gets a signal that monitor goes off (via the av receiver) the designers didn't factor the av receiver's capability to continue handling the sound.

When the TV is turned off or disconnected from the Mac, or if you are using an AV Receiver also when the AV Receiver is switched to a different source than the Mac, the result is that the Mac no longer sees a signal on the HDMI interface. The Mac will then deactive the HDMI interface and switch the sound back to the built-in speaker.
The best solution involves spending money, and is to buy a Gefen HDMI Detective+. This learns the signal from the TV and will keep sending it to the Mac even if the TV is turned off, unplugged or the AV Receiver switches the connection.
See http://www.gefen.com/kvm/dproduct.jsp?prod_id=8005

Mac mini HDMI 1080p SUCCESS with Panasonic 50" TH-50PZ81B

I recently purchased a Panasonic TH-50PZ81B. This is a UK model with a built-in satellite ("Freesat") receiver, and displays full 1080p and uses a 1920 x 1080 native panel. I used to connect my Mac mini HTPC to a Sony 42" plasma by VGA, and the Panasonic has a VGA input which displays 1,368 x 768 out of the box - no SwitchResX. It's decent. But, I wanted the "full" 1080p so bought the Belkin DVI-HDMI cable. Like a lot of people I got the choice of either the big black bars all around, or enabling "overscan" in Displays which would fill the screen, but, well, overscan! I spent all morning playing with SwitchResX and it just wasn't working (and the instructions at http://www.avsforum.com/avs-vb/showthread.php?t=751713 bothered me in that it seems to suggest you need to increase the resolution so it wouldn't be 1:1 pixel mapping). I tried to look at the service menu but it wasn't obvious what to do so I left it alone, and there is no manual picture adjustment like there was on my old Sony. Urgh.
But, by chance I noticed in the TV's Menu -> Settings menu on page 2 there is an option for Picture Overscan, which was turned on. I turned if off, and just like that got full 1080p 1:1 pixel mapping.
So, that's Mac mini with overscan ON. Use the great (weird) advice from Adam Nash to enable the Display menu bar item as seen here:
http://blog.adamnash.com/2008/01/24/yes-you-can-get-1080p-out-of-a-mac-mini/
It works - you have two identical-looking outputs but your TV will tell you one is 1080i and the other is 1080p.
On the TV settings go Menu -> Settings -> Picture Overscan and make sure it's OFF. Done!
I don't know if other Panasonic screens are similar but I can tell from the frustration on other posts - which I shared, believe me - that there are a lot of people with this issue wondering why SwitchResX is so non-intuitive etc. so I am hoping that for all those people who know how to use Google, this will show up in their searches.

I decided to post in the display forum because it was fine outputing via DVI-HDMI to a 1368*768 TV, and also fine via D-sub to the Full HD TV (although at 1368*768, but that's the limitation of the TV)
But thanks for your advice. I'll post there as well

Mac Mini, HDMI option problem

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