Q: No Signal on HDMI TV After Lion Upgrade

I've had the same issue since my Lion upgrade.  Connected my mini via hdmi to phillips hdtv and get a picture for a second and then screen goes dark.  I've reset the pram, ram, nothing.  Any ideas?

I know this is a PITA but do what I did. Go back to Snow Leopard and be happy.  All will be restored and work as it should.

I'd agree with you, if my mac mini hadn't come with Lion preinstalled, and Apple hadn't made it even more of a PITA to install SL on it.

I have almost no choice but to sit it out and hope for a fix.

I have the same problem with a new 2011 mini Mac (on Lion, of course).

It doesn't 'see' my Philips HDTV... They should advertise this!

What do you honestly think? Is there any chance of fixing the issue in a near future, or should I start thinking on ebay...

Thanks!

Suggestion and my plans

I have been using a small lousy dell monitor in lieu of my 5 yr old Philips 24" HDTV (that has had 2 minis used on it during its life).  I spoke with 2nd tier tech a day or two after lion came out about the problem and they had me send in logs for the engineers.  Not my only issue with my 2009 mini and had another call to tech support (zoom turns off after sleep).  I just bet they are swamped and I keep checking for a software update but who knows.  They will get it figured out, but in the meantime you might try and borrow or buy a cheap display. 

I have pushed up my planned new TV purchase by a few months and am most likely buying a 42" Vizio 3D 1080p LCD from Walmart tonight.  I will surely be on here b&(*@#ing if that doesn't work.  Whenever I try and detect my phillips 24" display it shuts down video output from the mini.  I then have to start up with my 15" dell crud display.  I can however, unplug the Dell display and then plug into the 24" phillips tv and use it as long as I don't shut down or try and detect display in sys pref. I am using the mini display port to vga adaptor for the pc in on my 23pf5320 philips.

<sarcasm> It just doesn't work. </sarcasm>

I am being patient for the time being but this is the first time in 4 yrs I have cringed about thinking of returning to PC.  Sure, we would like to see a comment from Apple on this but I doubt that will happen soon if at all.  I am not going to early adopt so soon next time that is for sure.

Same here, Philips LCD, connect directly with HDMI. Turn on new mini with lion, see the white boot screen. After that TV turns black. Pram resets and whatever do not work.

I just got off the phone with Apple support, they gave me these terminal commands. Works so far for my Philips 37PFL9603

cd /System/Library/Displays/Overrides/DisplayVendorID-410c/

sudo mv DisplayProductID-0  DisplayProductID-0.old

Reboot after entering the commands

Good luck and enjoy!

I just got off the phone with Apple support, they gave me these terminal commands. Works so far for my Philips 37PFL9603

cd /System/Library/Displays/Overrides/DisplayVendorID-410c/

sudo mv DisplayProductID-0  DisplayProductID-0.old

Reboot after entering the commands

Good luck and enjoy!

This worked for me.  I'm using a 2010 mini attached through a Denon AV amp to an Epson 8350 projector.  I would have to zap the PRAM on each reboot in order to get video back.  Now if I can just figure out why I'm also losing HDMI stereo audio (only stereo, other digital formats pass through just fine) my home theatre setup will almost be working again.  I know I could go back to Snow Leopard but I needed to use this machine to test other Lion stuff so I had to take the plunge with it.

Apple has some serious bug zapping in their near future WRT Lion.

Try playing any stereo content before playing any

of Dolby or DTS.  This is a bug that was "knowingly"

carried over from 10.6.8 where playing Dolby or DTS

tracks borks all other audio.     With Lion, reboot is

easiest fix.  Some have in another forum replaced

a .kext driver file with an older version.  But, messing

with system files is touchy.

Venturas?  Does that fix allow you to turn off the

display with Mini running then turn on again and still

get video?  Also, does it let you turn on Mini then turn

on display and still work?   I guess I'm asking, does that

fix work regardless of any powerup/powerdown sequence,

or does it just get the display to work with a fixed sequence

of events, like my system acts now.

Woodmeister,

So far I have put the mini to sleep and woken it a few times, turning the philips off and on again and been switching between inputs (set top, usb, mini) that all had no effect. I kept the image.

So far so good

I have a brand new mini that won't connect to my HD TV.  i have no other monitor or tv in my house to use with it.  so i haven't even been able to get it set up.

I just spend nearly a $1000 on the mini, keyboard/trackpad, cables, superdrive... and I can't even use the **** thing!! 

th

this is a nightmare

Venturas, will give it a try.  Hopefully it will take the fear

of not doing something just right away from using my Mini.

@woodmeister50:  Playing a stereo file before Dobly or DTS doesn't help me and rebooting all the time ***** badly ... this is my home theatre machine.  Having to reboot every other show or so is a pretty horrible workaround, but at least now with the video resolution fix I can without having to zap the PRAM just to get video back.  Let's hope that Apple gets some updates out really quickly, they have really messed this one up.  I'm seriously re-considering using a mini for my HTPC now.  No blu-ray playback (and there never will be) and now with the latest OS it can't even play more than a couple of videos without having to reboot the machine.

The attention to detail that Apple used to put into their system updates is long gone and has been seemingly replaced with the need to rip out useful tools that people use and change system-wide behaviour's in efforts to have more "bling" for the iOS type users.  Also with the un-needed and way overkill locking down of radarweb it feels like microsoft these days, or worse.  You can't even verify if things are known bugs anymore without having to spend all kinds of time doing research on support forums to see if other people have the same issue and if they have reported it or not.  This really makes me think of the famour 1984 commercial ... but now it's Apple that's on the big screen.

I had the same issues here with both the latest 2011 mini and one from 2010 both with Lion. My HDMI would do fine going directly into my Pioneer 50 plasma. But when put through the HDMI of my receiver, I'd get flickering, black screens, and inconsistant resolutions. After tons of research I found the Gefen HDMI Detective Plus. It's job is to isolate and store the EDID - electronic identification of a display (possible resolutions and frequencies). The little device remembers the source requirement and will keep it from searching EDIDs. It's expensive at $129, but it saved my home theater experience with my new mini under Lion. It works folks.