Mini connected to 1080p HDTV

I have my mac mini conntected to a 1080p HDTV using a DVI to HDMI adapter. Prior to updating to 10.4.10, my system was exporting a beautiful 1080p (1920x1080 not interlaced) signal. After upgrading to 10.4.10, I can only get up to a 1080i (1920x1080 interlaced) resolution from my display settings. I have also tried a DVI to VGA cable with the same results.

What happened?

Thanks,
Jon

Mac Mini, Mac OS X (10.4.10)

Posted on Jul 5, 2007 3:02 PM

Reply
40 replies

Oct 27, 2007 7:02 AM in response to kd7onc

I'm having the same problem as others on this thread. I just bought a new Core 2 Duo Mac Mini with the 10.5.0 drop-in upgrade disc. I thought this would be a great media center for my new 42" Sharp Aquos LCD TV (1080p).

Out of the box (10.4.10), I could only get 1080i.

During the 10.5.0 setup, I was getting 1080p. My TV has an information mode where you can see this.

Once 10.5.0 was installed and running, I could only get 1080i.

The video is not bad at 1080i, but the sharpness of the desktop is not what I would like. I've connected my laptop in the past (Dell M65) with a docking station and gotten 1080p... I don't understand why this isn't working and the lack of answers on the web is troubling. I know there's a way to do this!!

Oct 27, 2007 1:12 PM in response to FinalStone

Hi,

I may have a solution.

I have a Powerbook and I'm using a DVI to HDMI cable to a Sharp Aquos 1080 TV. When I first set it up a couple months ago I was getting the same split line problem that others are experiencing. I then used DisplayResX (??) and got 1080P. I just did a fresh instal with Leopard. I tried the TV and got a good display out of the box. In playing around, I tried 720P as well, when I went back to 1080i, the screen was messed up as before.

The solution seems to be to tell the Display System Preferences to 'Show displays in menu bar'. When you do that, and you click on the icon, two 1080 options come up. One works and shows on my TV as 1080P. The other one is the broken one. It's not quite as nice as I'd like though, seems to have a bit of fringing or something going on.

Nov 1, 2007 8:09 PM in response to Atroz

Does not seem to work still, i just bought a iMac 24" and I already own a MacBook Pro. I also bougth a Hyundai 37" full-hd 1080p screen that i wanted to watch my movies and more on. I have got the same problem, for some reason both these macs only output 1080i which is really annoying since i know for a fact that both macs support the resolution output.

I see some of you have tried a program called SwitchResX, but should not apple fix this as its CLEARLY a software problem??? Is there any way of notify them of this problem? I also tried to install the SwitchResX, but the problem here is that i dont know what spesific setting my screen uses. I saw i could manually set up the screen, but where can i find the spesifications of the screen? I even tried the manual, but sadly no luck 😟 Help anyone!!

Nov 2, 2007 3:00 AM in response to BSteely

So, i tried the "Export DDC" button, but i cant seem to find what could help me with 1080p, which i think is logical. It would be strange if the driver in osx could recognize the resolution, but the operating system itself could not choose the resolution. Im gonna give you guys a go at my DCC file, any help is greatly appresiated!


And here is what it displays:
----------
DDC block report generated by SwitchResX for display
37'' TFT-TV (2)

0 1 2 3 4 5 6 7 8 9 A B C D E F
-----------------------------------------------------
0 | 00 FF FF FF FF FF FF 00 3C AD 00 37 00 00 00 00
1 | 25 10 01 03 80 10 09 78 0A F5 50 A6 54 46 98 24
2 | 11 49 4B 20 00 00 01 01 01 01 01 01 01 01 01 01
3 | 01 01 01 01 01 01 01 1D 80 18 71 1C 16 20 58 2C
4 | 25 00 10 09 00 00 00 9E 01 1D 00 72 51 D0 1E 20
5 | 6E 28 55 00 10 09 00 00 00 1E 00 00 00 FC 00 33
6 | 37 27 27 20 54 46 54 2D 54 56 0A 20 00 00 00 FD
7 | 00 31 3D 0F 2E 08 00 0A 20 20 20 20 20 20 01 54

-----------------------------------------------------
Valid DDC block: checksum passed

EDID Version........1.3
Manufacturer........OEM
Product Code........55 (0037) (3700)
Serial Number.......0

Manufactured........Week 37 of year 2006
Max H Size..........16 cm
Max V Size..........9 cm
Gamma...............2.20

DPMS Supported Features:
------------------------


Display type:
-------------
RGB color display


Input signal & sync:
--------------------
Digital

Color info:
------------
Red x = 0.651 Green x = 0.274 Blue x = 0.142 White x = 0.285
Red y = 0.331 Green y = 0.595 Blue y = 0.067 White y = 0.293

Established Timings:
--------------------
640 x 480 @ 60Hz

Manufacturer Reserved Timings:
------------------------------

Standard Timing Identification:
-------------------------------

Monitor Description blocks:
---------------------------
Descriptor #0 is Timing definition:
Mode = 1920 x 540 @ 60Hz
Pixel Clock.............74.25 MHz Interlaced

Horizontal Vertical
Active..................1920 pixels 540 lines
Front Porch............. 88 pixels 2 lines
Sync Width.............. 44 pixels 5 lines
Back Porch.............. 148 pixels 15 lines
Blanking................ 280 pixels 22 lines
Total...................2200 pixels 562 lines
Scan Rate............... 33.75 kHz 60.05 Hz

Image Size.............. 16 mm 9 mm
Border.................. 0 pixels 0 lines

Sync: Digital separate with
* Positive vertical polarity
* Positive horizontal polarity

Descriptor #1 is Timing definition:
Mode = 1280 x 720 @ 60Hz
Pixel Clock.............74.25 MHz Non-Interlaced

Horizontal Vertical
Active..................1280 pixels 720 lines
Front Porch............. 110 pixels 5 lines
Sync Width.............. 40 pixels 5 lines
Back Porch.............. 220 pixels 20 lines
Blanking................ 370 pixels 30 lines
Total...................1650 pixels 750 lines
Scan Rate............... 45.00 kHz 60.00 Hz

Image Size.............. 16 mm 9 mm
Border.................. 0 pixels 0 lines

Sync: Digital separate with
* Positive vertical polarity
* Positive horizontal polarity

Descriptor #2 is Monitor name:
37'' TFT-TV
Descriptor #3 is Monitor limits:
Horizontal frequency range.......15-46 kHz
Vertical frequency range.........49-61 Hz
Maximum bandwidth unspecified

Nov 2, 2007 9:28 AM in response to jaawa

Unfortunately, it looks as though this Hyundai TV does not support 1080p. It is only advertising 1080i and 720p through Descriptor #0 and Descriptor #1 respectively. This is what the mini is picking up and that is why you only see those choices in OS X's Displays preferences and not a choice for 1080p. Furthermore, if you look at Descriptor #3 where the maximum frequency ranges are specified for vertical and horizontal, it says the TV can only go to a maximum 46kHz horizontal. Unfortunately, 1080p has a requirement far beyond that...closer to 70kHz...so this TV will not run from 1080p timing, ever, according to its display driver information.

Nov 2, 2007 9:27 AM in response to BSteely

Ok, so i get what your saying, but there is only one problem. When i connect my Xbox360 and Playstation 3 to the same screen, it switches on the tv to 1080p. Is there anywhere i can find proper drivers for the screen? Seems like thats the problem. It also says 1080p 4 different places on the package and in the manual...

Oh, and by the way, its not a mini. Its both a iMac and a Macbook pro, both with Leopard

Nov 2, 2007 9:39 AM in response to jaawa

It's going to be a big problem for the Mac that Hyundai has made this critical mistake in the EDID driver data. Once the Mac reads the limits for horizontal as found in Descriptor #3, it will never allow a timing to be created and sent to the TV in violation of that limit. I would say you only have a few choices at this point.

One choice would be to return the TV for another brand. A second choice would be to engage Hyundai tech support at a very high level, email them their faulty EDID data and ask them if the TVs ROM can be reflashed with updated, correct data because obviously, from what you are telling me about the XBox, the TV is able to run at higher than 46kHz even though it is not advertising that it can. A third option would be to get a DVI Detective from Gefen that has a custom 1080p EDID inside of it. Then when you plug the DVI Detective into the Mac it will read all the correct driver data and output 1080p to the Hyundai.

Nov 3, 2007 12:03 PM in response to BSteely

Ok, as i had to wait like 9 months for them to actually switch from my old defective screen to this one, turning it in is not really an option. I wont wait for another 9 months to get a new one... But I checked a little closer... When i use my Xbox 360 at 1080p it dislays the following info at the meny in the tv:

Mode: 1080p
Horizontal: 67 kHz
Vertical: 60Hz


So i probably can use this to make manual settings to that program discussed earlier. But how do i figure out the rest of the settings?

I still need Front and Back Porch, Sync width,

And what about Positiv Sync, whats that?

Nov 3, 2007 2:43 PM in response to jaawa

No, it won't work. Once the Mac reads the EDID and sees that the TV won't run at anything higher than 46kHz (even though it will and that is a mistake in the EDID), it won't allow an "illegal" timing to be built and output to the TV. At least I am pretty sure of that.

On the chance it will work and I am wrong, and to answer your question, you don't need to know all the other values like porch times. SwitchRes X has a built-in calculator that uses industry recognized algorithms to compute those values. Just enter 1920 and 1080 and 60 Hz into SwitchRes X and then click on the "Use simplified settings:" check box and select GTF in the related pop-up, which stands for the Generalized Timing Formula. SwitchRes X will fill in all the remaining values. Make sure when it's done that there is still 60Hz in the vertical frequency box. Sometimes you have to re-enter that number a second time because it fails to prioritize that number.

Nov 23, 2007 5:28 AM in response to wabiszczewicz

How did you make it work?

Mine is stuck at 1080i 😟 resolution is nice, but it is exhausting for my eyes when I edit clips for more than 10 mins at the time.

wabiszczewicz -> Can you please make a zip file of your /System/Library/Displays/Overrides/ folder?
and make it available somewhere? My Aquos TV has then vendor name: DisplayVendorID-4d10

To be precise: /System/Library/Displays/Overrides/DisplayVendorID-4d10/DisplayProductID-fe8

Message was edited by: ggt667 added request for wabiszczewicz to submit settings.

According a different forum( http://www.hifi-forum.de/viewthread-140-520.html );
this info should work:

1920 1080
40 3
48 5
192 37
67.5 60

Message was edited by: ggt667 added info from a different forum

Nov 24, 2007 12:05 AM in response to ggt667

The number settings pasted above also works on the XL1 model

Sharp LC52XL1E 52" LCD TV i Full HD, but at 60Hz not 100...

However these settings are no longer available when going through amplifier,
so either the amplifier or the HDMI cable from the amplifier to the Aquos screen are not capable of transporting 1080p.

Message was edited by: ggt667 added info about amplifier

Nov 28, 2007 12:47 PM in response to kd7onc

This is what Samsung says about its 2007 model LCD TV's.
HDMI and HDMI/DVI Jacks
2007 Models

If you have a 2007 Samsung LCD TV with more than one HDMI jack, you can use the HDMI IN 1 terminal to connect your TV to your PC's DVI video output. To make the connection, you must use an HDMI/DVI cable. That is, a cable with an HDMI connector on one end and a DVI-D connection on the other.

I have not tried this, but am considering an intel Mac Mini for use on a 46" Samsung LCD with 1080P capabilities.

It is important to point out that Samsung LCD's from 2005-2006 do not support DVI to HDMI. You must have a set with 2 HDMI ports, so they say on their site.

Here is that link:
http://ars.samsung.com/customer/usa/jsp/faqs/faqsview.jsp?SITE_ID=1&PG_ID=3&PROD_SUB_ID=41&PROD_ID=154&ATID=25487

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Mini connected to 1080p HDTV

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.