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SE50UY04 Mac Mini SwitchResX Active Startech HDMI to Mini DisplayPort

post #1 of 14
Thread Starter 

This is my setup:

 

    Seiki SE50UY04 50" with Firmware 522712

    Mac Mini running MacOS X 10.9 Mavericks

    Intel HD Graphics 4000 1024 MB graphics

    SwitchResX

    Active Startech HDMI to Mini DisplayPort Adapter MDP2HDSW

    "High Speed" HDMI cable

 

I can not get 4K resolution to work and can't figure it out as it seems like other people are succeeding with all these pieces.  In any 4K mode, it just wraps the display on the left half of my screen.  Lower resolutions work fine.  I've seen what I think is perfect 4K when I boot the Mac.  The startup screen with just the Apple on a grey background looks glorious.  Then when it switches to the login screen I'm stuck back at half screen.  I've tried every variant I can think of in SwitchResX for settings to no avail.  Is the Intel chipset the problem?  Photo of the screwy half screen problem attached as well as example SwitchResX settings that cause it.  You can't tell from the image, but it basically wraps the display over the left half of the screen twice.  I can hyperspace the mouse off the right edge and back onto the left and back.

 

Thanks, Pablos.

post #2 of 14
Saw this on another forum, try it and see if it works for you:

http://code.google.com/p/mac-pixel-clock-patch/wiki/Documentation
post #3 of 14
Thread Starter 

Thanks, that may be what I need.  I may have to kludge it into working with 10.9 though.

post #4 of 14

I have been having the exact same problem.  Did you ever solve yours?

post #5 of 14
Thread Starter 

No, I haven't gotten the Seiki to work in 4K with this Mac Mini no matter what settings I've tried.  I ordered a Mac Pro, so we'll see if it works with that.

post #6 of 14
Quote:
Originally Posted by pablos08 View Post

No, I haven't gotten the Seiki to work in 4K with this Mac Mini no matter what settings I've tried.  I ordered a Mac Pro, so we'll see if it works with that.

I have had only partial success with the active adapter...the startup screen reports a resolution of 3840 x 2160 at 30Hz, but it reverts to 1080p by the time the desktop comes up. This has to be because of the Mac OS, since when I startup in Windows 7 (using BootCamp) I'm able to run the same hardware at 3840 x 2160 with no problems whatsoever. By the way, this is the latest from Seiki on their upconverting HDMI cable:

http://televisions.reviewed.com/news/seikis-uvision-cable-produces-instant-4k-content

By the way, congratulations on the Mac Pro...it is a stunning piece of machinery. Wish I had the money (and some practical use) for such beautiful beast. smile.gif
post #7 of 14

Yes, I too have the Mac Pro on order.  Just wanted to use the Seiki in 4K (and see what it looks like) before the MacPro gets here.

post #8 of 14

I finally got my Mac MIni on 10.9 to work with the Seiki 39" 4K monitor.  Unfortunately I'm not exactly sure how I did it.  It is running out of the HDMI port and running at 17Hz.  I kept going into SwitchResX and messing with settings.  It was giving me the "half screen" issue and then seemed to just work.  The resolution looks GREAT but 17Hz is pretty awful.  The good news is that it will look great when I get my Mac Pro.  If someone makes a patch so that I could get 30Hz, I would probably order another one for my Mac Mini.

post #9 of 14

Rudy, you mind screenshotting your switchresx settings?  I'm having the same issue.... very very close to getting it to display without any artifacts though.

post #10 of 14
Quote:
Originally Posted by wpccolorblind View Post

Rudy, you mind screenshotting your switchresx settings?  I'm having the same issue.... very very close to getting it to display without any artifacts though.

Sorry...I uninstalled SwitchRezX when I couldn't get it to work. For the past couple of weeks I have been using the Seiki with a Windows 7 PC. The graphics card is a AMD Radeon HD7750 with 2GB RAM. Hopefully the next revision of Mavericks will allow the Mac Mini to output 4K from the DP as well as the HDMI jacks.
post #11 of 14
I just installed this patch last night, and was able to get the Mac Mini to boot directly into a 3840 x 2160 desktop on Mavericks:

https://code.google.com/p/mac-pixel-clock-patch/source/clones

As I mentioned previously, the text in the OS X Menubar is too tiny, so I enabled 1080p HiDPI mode to keep the razor-sharp text and vibrant colors while enjoying the 2160p desktop.
post #12 of 14

Rudy, are you using switchresx or RDM?  Or is this with just normal mac display settings?

 

I installed the clock patch, rebooted, and the monitor claimed 3840 but it was really 1920 (however, it was nice and crisp, but everything was large... definitely not 3840).  When I messed with the display settings to see if I could get the menu bar tiny and large resolution, the display got messed up and now I can't get it from displaying only on the left half of the screen and really messed up....

 

Still playing with the settings, but curious how you were able to achieve this.... thanks for posting back though, hope I can get this to work!

post #13 of 14

Best i can get now is 2048x1536 using RDM which is still much better than what I was able to achieve before (1920x1080 LDPI).

post #14 of 14
I didn't need to use SwitchResX...I just connected the Mac Mini to the TV using the Accell Mini DisplayPort to HDMI Active Adapter, then installed the clock patch, rebooted, and the TV came up at 3840 X 2160 @30Hz. It works for Mavericks 10.9.1, but I don't know if it will work for the latest revision, 10.9.2, which just came out the other day. I happen to hate the way the desktop looks when the panel is running at 1080p 60Hz, so I don't want to risk messing this up by upgrading the OS. I ran Quartz Debug to enable HiDPI model in the Display Preferences pane; resolutions available now are:

2048 X 1536
2048 X 1152
1920 X 1440
1600 X 1200
1600 X 900
1440 X 900
1344 X 1008
1344 X 756
1280 X 960
1024 X 768
1024 X 576
800 X 600
720 X 576
1920 X 1080 HiDPI
1024 X 768 HiDPI
1024 X 576 HiDPI
960 X 720 HiDPI
960 X 540 Interlaced & HiDPI
960 X 540 HiDPI
800 X 600 HiDPI
800 X 450 HiDPI
720 X 450 HiDPI
3840 X 2160
1080p
1080i
720p
480p

With all of the HiDPI modes selected, the TV reports 3840 X 2160 @30Hz; when using any of the non-HiDPI resolutions (except the native res, of course), the TV scales the image to whatever you select at 60Hz, resulting in a softer image.
Edited by Rudy1 - 2/27/14 at 3:16pm
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