Q: No Signal on HDMI TV After Lion Upgrade

Well mine has stopped working totally with my Phillips LED, thankfully it works on my two year old Isignia 52" (which is weird because it's kinda a inferior brand) so I hooked it up to my living room TV and restored to 10.6.8 from my last Time Machine backup from that OS. Works flawlessly again, I guess I will just wait until 10.7.1 gets pushed out, and it better **** well fix this or I want my 29$ back and my 49$ from Lion Server.

I'm a Developer and Apple just seeded 10.7.2 OS Lion to devs....it's beta so I'm not gonna touch it but I will see if it's a fix for our issue.

Yes please let us know how it goes.  I'm sitting on the fence regarding going back to Snow Leopard.  It will take hours to get everything back if I do that, but I need my Mini to be more stable than what it is so I may have to bite the bullet. 

I'll wait to see what you find with this new version.

Well I just went to get it and I was greeted with the "We will be back soon" sticky note on the Dev portal. So they are up to something, it's located in the iCloud beta portal so I'm not getting my hopes up yet. As soon as the Dev Center goes back up I will have a look, and tell you what I can without breaching my "sworn to secrecy" contract.

Direct connect to my TV doesn't work.  If it did I

could just go optical to my receiver.  Oh wait, optical

audio is borked too. (See lengthy threads in 10.6.8 and 10.7 forums)

Macs as HTPC's are rapidly becoming a disaster. 

Say 10.7.2 supposedly fixes issue.  How does one update if

the display is not functional?

Connected my mini with Lion via HDMI to our 42" Toshiba REGZA LCD and it works fine.

Set as 1080i - 60 hrz (NTSC) and Underscan is at the 5th tick from the left.

Still does not work on our Phillips LCD

This *****!

Audio via MDP to HDMI Cable (now an ilegal cable) is absent to Vizio 32" LCD TV, used to work perfectly. Waiting for a fix.

Update - I have mine working on my Phillips TV via HDMI.  I enabled screensharing while it was connected and working on our Toshiba TV.  On the Phillips I changed its settings to:

Display Tab

Resolution: From 1080i to 1080p

Refresh Rate: 50 Herta (PAL) to 60 Hertz (NTSC)

Rotation: Standard

Underscan: 6th mark from the left (right in the middle)

Color Tab

Checked Show profiles for this display only

Selected: HD 709-A

I'm yet another user fscked by this issue. I picked up a 2010 Mini last sunday for a new HTPC. Found out Thursday that the 2011 Minis had been released. Went back to the Apple Store yesterday and swapped out for the new one. Got it home and found that it wouldn't display on my TV. Grrrrr! Was going to a block party last night, so I wasn't too worried about getting it working.

Checked here this morning to see if other folks were having the issue and found this thread. I did my part and called AppleCare, got escalated to a Senior Advisor and reported this issue.

Has anyone tried installing SL on the 2011 mini or will that just result in a 'This hardware isn't supported' message?

A Snow Leopard install will not work on systems released after it was compiled. The installer does not recognize the hardware like motherboard, chipset, ...

Also, I beleive that no system can install an OS earlier

than what it shipped with, even if hardware hasn't changed.

Atleast that is true for major 10.x systems.  May not be

true for minor, 10.x.x.

I'm trying an upgrade yet again.  Previously I was upgrading

from 10.6.7.  This time I'm trying it after updating to 10.6.8.

My Macbook Pro and iMac were upgraded from 10.6.8 and

have had no problems.  We'll see.  Also, if HDMI doesn't work,

I am going to try my Display Port to DVI adapter then to HDMI

and see what happens.  (Have the DP to DVI for my Macbook Pro

so not costing me anything to try).

I think I may have finally achieved success.  My first

boot after upgrading the 10.6.8 updated system resulted

in the infamous black screen no signal.  Shut down with

the power button then restarted by zapping PRAM

(command+option+p+r).  I got the display back.  Did the repair

permissions as usual.  Then went into monitor preferences.

Pressed the detect displays button.  Then changed the resolution

to 720p.  I then changed it back to 1080p.  It always has been

set to 60Hz NTSC so didn't touch that.  Also disabled the menu

bar widget.  I did al this thinking that maybe if I force it to

change settings that it me rewrite something that may have been

corrupted.  Also, whether it means anything or not, also tried

to see if I could connect to it via Screen Sharing with my iMac and it did.

After all this, decided to shut everything down.   Mac, receiver, and TV and

let sit for 10 minutes or so.

Then powered up TV, then receiver, and then the Mini. 

Suprise!!!!!   It booted.  Did the same thing a second time.

And guess what, it booted properly again!!

I messed around with a lot of things, but something there got

me back up and running again, with Lion.

Last time, zapping PRAM only worked once (was first thing I tried).

Maybe changing display settings and changing them back did force

a rewrite of something to a new format.

Well, gonna sit down now and see if PLEX still works and

watch a movie and if I can still watch my iTunes movies.

Further, we'll see when this guy sits overnight and I fire it

up tommorow whether it still works.

Leave the tv and AV receiver on and shutdown the mini.  Then start the mini and see if it still works.  I ran into issues starting the mini while my tv was plugged in and turned on. 

I still cannot get it to work at all with my Denon receiver.