Q: No Signal on HDMI TV After Lion Upgrade

@woodmeister50, what yamaha receiver do you have? I have an rx-v767 and can't get 1080p via HDMI through it.

2011 mac mini, connect to sony bravia direct - 1080p no problem (50p/60p/24p)

connect through yamaha rx-v767, 720p ok, 1080p/24 ok, 1080p/50/60 NOK. My PS3 plays 1080p/60 through it fine, so I dont think its a problem with the receiver.

connecting direct to the TV isn't an option as I want all my switching through my amp, and I want audio passthrough so I can listen on the TV speakers sometimes.

So I'm stuck with 720p until we get a fix (and that flickers occasionally)

Just received my new mid-2011 mini 2x750GB 8GB Lion mini-server to replace mid-2010 SL mini-server. Sony Bravia KDL40-NX700 through Yamaha RX-2000 receiver (both new in late 2010).

Same issues.  Ended up doing initial config through Thunderbolt port to Apple Cinema Display.  No problems screen sharing.  But no signal through HDMI.  So looks like it's a Lion problem for sure.  I can live with screen sharing for now, but what an annoyance!

Having a very similar problem.  Logging in with a normal account and the screen on my Samsung 50" plasma TV goes black.  Logging in as the administrator, everything works fine.  Occasionally, I can log in with a normal account and things are fine.

I have the same problem, however I found that if force a shutdown and then turn the mini back on as well as turn the tv off and back on, the screen does come back.  Probably will not turn the mini off for a few days to see if a real fix via update comes out.

mrklaw, my Yamaha is an RX-V467.  Did you try this:

1.  shut evrything down

2.  turn on TV until it has some display that says its looking

     for signal.  My Samsung TV does this.

3.  turn on the receiver.  not sure, but I wait until a hear a second

     click from the receiver after the intial one.  Yours may not do

     that, so just wait a few seconds.

4.  perform the PRAM zapping feature booting the Mini.

5.  once booted, cange display to desired setting.  I use 1080p

     myself.

After this, NEVER just reboot. NEVER shut any component off

while Mini is still running.

ALWAYS start system by turning on TV and wait for it to

initialize, turn on receiver and wait a few seconds for it to

do its thing, then boot the Mini.

I find that ANY DEVIATION whatsoever from this process

borks my video totally with Lion.

There was, and still isn't, any video issues at all with

Snow Leopard.  I could turn anything on in any order,

leave Mini run with everthing else turned off.  Basically,

all the permuttions you could have with 3 devices being

turned on and off produced no issues.  With Lion,

only ONE of these permutations works without borking

system.

I have an rx-v767 and also can't get 1080p via HDMI through it to my 50" Samsung. 720p,1080i both work, but 1080p doesn't.

I don't want to use 720p and I also don't want to use spdif for audio either (because that won't work with DTS-HD - or so I'm told).

When I don't use the Mac Mini as HTPC is runs in the background as a server, so turning stuff on/off i a special order won't work for me.

Realy hope to se this fixed in 10.7.1

I bought a new mac mini today.  Bought an HDMI cable.   Booted it up connected to my Insignia LCD NS 19 720p TV with HDMI port.    Setup Assistant came up asking me if I wanted English,  when I selected that and hit continue the screen when to silver lines, unusable, never comes back.   If I turn off the TV and back on, the picture returns...until I hit continue on the next option...again the screen blanks.     At this rate I'll never get to the point of trying to change a resolution or anything.     Really unusable, very dissappointed this doesn't work.  

The TV also has a VGA port...if I get the DVI to VGA converter...does anyone know if that will work?   I know the resolution won't be very good, but I need it to work.  

thomasmb, you are correct about spdif.  It doesn't support

any of the HD audio formats.  It is basically a bitrate issue.

SPDIF just doesn't have the bandwidth.

I also understand your dilema.  I quite often like to let the Mini

crunch on some data and while it's doing that switch to my

cable box and watch something.  But now when I do that,

when I switch back to the Mini, video goes bye-bye and need

to go through the whole nonsense again.  Also, used to

set up to download a bunch of videos from iTunes and

would shut TV and receiver off while I went about doing

doing whatever.  Can't do that now.

I stumped two apple techs a day or two after the launch with this.  One guy said he WOULD call me back in two days and had never seen an update take more than a week and a half.  Well, no call and it is nearing a week and a half in a couple days.  I am going to remain patient for a little bit longer hopefully.  Check out my woes list with the display problem near the end.  I have figured out a few so far.  Using a backup 14" Dell square display AND IT *****! 

Where is any update???  PLEASE!

https://discussions.apple.com/message/15715198#15715198

I got the same problem about the null HDMI signal problem. i just reviceve my new mac mini for a few days, and want it connect to my LCDTV as media centre. should I return the goods to Apple as a product defects and ask for refund directly?

to fix hdmi problem with mac mini and lion, follow me:

step 1 turn off mac mini.

step 2 unplug the power cord

step 3 hold power button with it unpluged for 10 or more seconds

step 4 plug in power cord

step 5 turn on computer and hold option, command, the letter R, and the letter P till computer bongs a second                 time.

step 6 after second bong hold shift key till a grey bar appers with apple logo.

step 7 alow to boot till you see your sign in info. (dont bother signing in.)

step 8 click restart mini

i got this from apple for my own mini. no problems now!

The PRAM reset will only temporarily fix the problem.  Sometimes that works for a day or so for me, but it's not a permanent fix.

man i click way to much. sorry

to fix hdmi problem with mac mini and lion, follow me:

step 1 turn off mac mini.

step 2 unplug the power cord

step 3 hold power button with it unpluged for 10 or more seconds

step 4 plug in power cord

step 5 turn on computer and hold option, command, the letter R, and the letter P till computer bongs a second                 time.

step 6 after second bong hold shift key till a grey bar appers with apple logo.

step 7 alow to boot till you see your sign in info. (dont bother signing in.)

step 8 click restart mini

i got this from apple for my own mini. no problems now!

well ill keep ya'll informed if it starts doing it again. i have restarted my mini a lot of times before i hung up the phone with apple.