60Hz 4K on Mavericks with GTX 760? [UPDATE: 10.9.3 works [UPDATED UPDATE: maybe]]

=)(= · August 15, 2014

I haven't I am using Windows from time to time instead, MacOS is so much better as HiDPI, I am waiting to see if Yosemite solves anything.

Yeah OSX is so much better for 4K then Windows that I rather use OSX at 30Hz then Windows at 60Hz.

Well, we just need to figure out what makes the real MacPro 6,1 work with 4K at 60Hz MST and OSX86 does not. Maybe it's about the FirePro GPU's in the MacPro? Or if it is the drivers, then I find it weird that the MacPro uses different drivers than what we have, and in that case we could port the drivers maybe. It could also be the firmware on the MacPro that makes it work.

At least we can change to 1080p 60Hz using Display Maestro, so we can play games.

=)(= · August 18, 2014

I am running at 60Hz now if the monitor info is showing right.

I managed to get it to work with only iMac 12,2 on a HFS+ USB (Clover must be on EFI partition and nvidia injection needs to be disabled) and without Clover installed on the HDD. The trick is to Install 10.9.2 and then 10.9.3 beta 1 (13D12) while DP 1,2 is turned off and when beta 1 finishes installing, before you restart turn DP 1,2 on, reboot and install 13D17 and then 13D21.

It worked at 60Hz until I installed beta 13D28, then it broke and would not detect the monitor, so beta 13D21 is the last beta which works, all other betas after that fails to detect the monitor. Even final 10.9.3 fails to,detect monitor.

I am not sure yet if it really runs at 60Hz or if the monitor gets tricked that it is runnung at 60Hz. Need to test later.

I tried with iMac 14,2 too but that makes the display to become gray. So only 12,2 seems to work.

juliantoledo · August 19, 2014

Oh nice! very tricky, I now know I am not that crazy and I really saw 60Hz too! Do you have the Nvidia web driver installed?

It should be 60Hz, try moving your mouse around and you will tell for sure. I hope we find a way to have it running in 10.9.4.

I did few test yesterday and even tried the Yosemite Beta 1 that did not even get pass 1024x768 on my second monitor, the dell 4K was dead.

=)(= · August 19, 2014

Oh nice! very tricky, I now know I am not that crazy and I really saw 60Hz too! Do you have the Nvidia web driver installed?

It should be 60Hz, try moving your mouse around and you will tell for sure. I hope we find a way to have it running in 10.9.4.

I did few test yesterday and even tried the Yosemite Beta 1 that did not even get pass 1024x768 on my second monitor, the dell 4K was dead.

No, OSX default driver.

Mouse cursor moves fast and scrolling in heavy websites is fast too, I don't notice any lag. But League of Legends ran at 33 FPS with sync on, and Ungine Heaven benchmark did not reach even 30 fps at 1920x1080, I suspect that it is running at 30Hz but at the same time it feels like it is more then 30Hz.

The weird thing is that when I tried to play League of Legends in 10.9.4 at 30Hz, it was lagging a lot and I could not move the mouse cursor all the way to the edges of the screen by using the mouse, could move the view properly only by using keyboard. Now when I started LoL and it ran at 33 FPS I could move the mouse properly and there was very little lag. And also, if the monitor was running at 30Hz, how come that LoL runs at 33 FPS, shouldn't it not get past 30 when vsync is on?

If I turn off vsync in LoL and set the cap to 60 FPS, it will stay at 60 FPS (even thought I am not sure if it really runs at 60 FPS) but I can see screen tearing/flickering happening.

It could be that it is really running at 60Hz but there is some performance issues going on which causes games and other thing to not reach 60 fps.

I can also get 60Hz when I install Clover with iMac 12,2 to EFI partition on HDD. No need to use USB to get 60Hz.

=)(= · August 20, 2014

Haven't had time to read this but I think this is the fix Rominator was talking about at netkas forum.

Doesn't look like 10.9 will ever have MST 60 Hz 4K for NVIDIA

Yosemite already has it but Apple has added code to disable it.

If you enable it you have to turn off their kext Nanny checking system.

http://forums.macrumors.com/showpost.php?p=19436682&postcount=8

And the Yosemite fix:

http://forums.macrumors.com/showpost.php?p=19450796&postcount=13

juliantoledo · August 20, 2014

Great stuff! I will try it in the Yosemite Beta

juliantoledo · August 20, 2014

@

Haven't had time to read this but I think this is the fix Rominator was talking about at netkas forum.

http://forums.macrumors.com/showpost.php?p=19436682&postcount=8

And the Yosemite fix:

http://forums.macrumors.com/showpost.php?p=19450796&postcount=13

Thanks! It is working!!! The Dell up2414q repots 60Hz at 4K and the mouse cursor moves properly now (I haven't run any vsync tests)

I had to change the SMBIOS to MacPro 3,1 to be able to install the new Nvidia Web Driver for Yosemite, then I had to do the fix you mentioned, got one black screen, reverted and did it again and worked.

Update:

I tried StarCraft2 with Vsync and the FPS reported in the game go down to 30, I think that is because of an OS X issue, but I really think the monitor is running at 60Hz. Without the Vsync seems a lot better than the monitor running at 30Hz.

=)(= · August 21, 2014

Got it working!!! I installed the Web Driver when I was using using MacPro 6,1 but had to switch to MacPro 5,1 to get 60Hz working. It probably works fine to use MacPro 5,1 all the way, to install OSX and Nvidia Web Driver.

You just need to make sure that nvram is working, else nvidia web driver seems to not work properly.

About the game issue, someone posted on netkas forum:

well, games will go to 30fps if 60fps isn't maintainable. os x's vsync code only supports 15, 30, and 60. if you even drop to 59fps, vsync lowers to 30 do to failure to maintain 60. So that could play an effect. It's actually why I turn vsync off in some games where I know I maintain close to 60fps but not ALWAYS 60fps, because i don't want to drop to 30fps do to such minor fluctuations. Windows games have a feature with dynamic vsync so it'll lock at 60 when possible BUT if say you drop to 50fps, it'll dynamically toggle sync off for the fluctuation instead of force a lower sync. Unfortunately OS X doesn't support this natively, it'd have to be added at game level and I'm unaware of any OS X game porters that do this.

juliantoledo · August 21, 2014

Very cool!

BTW, I lowered all the settings in Starcraft2 (keeping 4K of course) and I get 60fps with VSync on

~~I should try this hack on 10.9.4, but I will use Yosemite for now to test it.~~ The hack broke my 10.9.4

Update:

I can only use MacPro 3,1 on a GA-Z68X-UD4-B3, I will try next with on a new Z97X

I have updated to Yosemite Beta 2 (14A329r) and it runs only 30Hz because the Nvidia driver does not work in the Beta2 yet.

=)(= · August 21, 2014

I have updated to Yosemite Beta 2 and it runs only 30Hz because the Nvidia driver does not work in the Beta2 yet.

I use:

PB2 (14A299l):http://us.download.nvidia.com/17ETMObkRRECqYKDwOCH9K2Kj07lOlJQ/WebDriver-334.01.20a14.pkg

In Yosemite I actually do get 60 FPS (55-60) with vsync at 2160p in LoL, whereas I got only 33 FPS on 10.9.3 beta at 1080p (with Apple driver).

It is not strange that you get lower FPS in SC2 at 2160p, I always had lower FPS in SC2 OS X compared to Windows version.

juliantoledo · August 21, 2014

I use:
PB2 (14A299l):http://us.download.nvidia.com/17ETMObkRRECqYKDwOCH9K2Kj07lOlJQ/WebDriver-334.01.20a14.pkg
In Yosemite I actually do get 60 FPS (55-60) with vsync at 2160p in LoL, whereas I got only 33 FPS on 10.9.3 beta at 1080p (with Apple driver).
It is not strange that you get lower FPS in SC2 at 2160p, I always had lower FPS in SC2 OS X compared to Windows version.

Did you update to today's Beta2 (14A329r)? I think I have installed the same driver and it gives me an error.

=)(= · August 21, 2014

Did you update to today's Beta2? I think I have installed the same driver and it gives me an error.

Ah no, I am on 14A299l.

I tested iMac14,2 SMBIOS, and it also works at 60Hz.

But I think it would better to use Macmini6,2 SMBIOS since it works at 60Hz and the AppleGraphicsControl.kext does not contain a block for Macmini board ID's, so we can just install Yosemite and use Macmini definition without having to edit the kext.

I have noticed that there is graphical bugs in at 60Hz which I do not see at 30Hz, for example the scroll bar in finder tends to become fully black (both the background and the grey scrollbar becomes black) while the rest of the finder background stays grey/white. And after boot, when the login windows appears, it tends to shows the loading bar screen at half screen while the login window appears on full screen.

Will go back to 10.9.3 beta today and test to use the Nvidia Web Driver there to find out if I will get better FPS, in that case I will maybe stay on it, since Yosemite is still buggy.

juliantoledo · August 22, 2014

Here is the Driver for Beta2 14A329r (from the netkas forum):

http://us.download.nvidia.com/CedRXgpY4IpEGCko1JAYJANGWAzgQH7b/WebDriver-343.01.01a03.pkg

I was able to get 60Hz again in the Dell 2414Q (1080p HiDPI) :

- SMBIOS MacMini 6,2 works without the hack (I loose Audio with this one)

- SMBIOS MacPro3,1 works with the AppleGraphicsControl.kext hack (everything seems to be working)

- SMBIOS iMac 14,2 does not work for me, screen stays black, I guess it needs the AppleGraphicsControl.kext hack

Audio and Net works after a quick fix.

=)(= · August 23, 2014

- SMBIOS MacMini 6,2 works without the hack (I loose Audio with this one)

Hmm, I lose audio with both iMac14,2 and Macmini6,2 (maybe with other SMBIOS too, didn't check) but after installing Soundblaster USB driver and opening the Soundblaster control panel the sound works (I have to do this every time I boot into OSX to get sound).

I could not get League of Legends working in the new beta, it would show a black screen after champion select.

EDIT: I reverted to 10.9.3 and tried League of Legends., it works properly now and now I have 60 FPS with vsync at 3840x2160 and using the default OSX driver.

I also run 10.9.3 13D21 with Macmini6,2 SMBIOS at 60Hz. I noticed that audio issue happens on 10.9.3 beta too, with both iMac12,2 and Macmini6,2 (weird, I don't remember having this issue a few days ago).

=)(= · August 27, 2014

I sold my NVIDIA card and bought AMD 280 for testing (Vendor: ATI (0x1002), Device ID: 0x679a) it shows up as "AMD Radeon HD 7xxx" in System Information and as HD7950 in Clover but can not get 60Hz to work, neither in 10.9.3 beta nor Yosemite

I can boot successfully with MacPro6,1 SMBIOS, whereas with the NVIDIA card, if I tried to boot with MP6,1 OS X would not detect that there is a display connected to GPU.

How come that the Asus PQ-321 works at 60Hz with AMD cards but Dell does not?

And how come that the Dell UP2414Q works on a real MacPro6,1 but with a MacPro6,1 SMBIOS and AMD card it detects the display but does not run at 60Hz?

At least on the AMD card I don't have the cold booting issue (black screen during post) which happens on NVIDIA.

jamiethemorris · August 30, 2014

I sold my NVIDIA card and bought AMD 280 for testing (Vendor: ATI (0x1002), Device ID: 0x679a) it shows up as "AMD Radeon HD 7xxx" in System Information and as HD7950 in Clover but can not get 60Hz to work, neither in 10.9.3 beta nor Yosemite I can boot successfully with MacPro6,1 SMBIOS, whereas with the NVIDIA card, if I tried to boot with MP6,1 OS X would not detect that there is a display connected to GPU.

How come that the Asus PQ-321 works at 60Hz with AMD cards but Dell does not?

And how come that the Dell UP2414Q works on a real MacPro6,1 but with a MacPro6,1 SMBIOS and AMD card it detects the display but does not run at 60Hz?

At least on the AMD card I don't have the cold booting issue (black screen during post) which happens on NVIDIA.

It's using the generic framebuffer, try some of the framebuffers to see if getting it recognized properly helps...

Kext /System/Library/Extensions/AMD7000Controller.kext/Contents/MacOS/AMD7000Controller
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0000030    00  04  00  00  04  03  00  00  00  01  04  07  22  05  04  02
0000040    00  04  00  00  04  03  00  00  00  01  05  07  10  00  05  05
0000050    00  04  00  00  04  03  00  00  00  01  06  07  20  01  06  06
0000060

Try to pick one that has ports as close as possible to yours. The ports are the first 4 characters - 0004 is DP, 0400 is DVI, 0008 is HDMI. The MacPro6,1 uses the framebuffers that have 6 DP's obviously, so you could also try modifying one of those.

Also, maybe it treats different device-IDs differently? You could try using 0x67981002 as a fake id in Clover which is the ID for AMD D700.

juliantoledo · August 30, 2014

I almost sold my Nvidia GTX 760 to buy the ATI 280, I thought ATI would give the 60Hz on the Dell

Sometimes I get the cold boot, but turning off and back on the Dell works out. I am still running 60Hz on the Yosemite Beta 2 14A329r

=)(= · August 30, 2014

It's using the generic framebuffer, try some of the framebuffers to see if getting it recognized properly helps...

Kext /System/Library/Extensions/AMD7000Controller.kext/Contents/MacOS/AMD7000Controller
Personality: Namako
ConnectorInfo count in decimal: 4
Disk offset in decimal 1489568
0000000    02  00  00  00  00  01  00  00  01  00  01  03  22  05  02  02
0000010    00  04  00  00  00  01  00  00  00  00  02  03  12  04  01  01
0000020    00  04  00  00  04  03  00  00  00  01  03  07  11  02  03  03
0000030    00  04  00  00  04  03  00  00  00  01  04  07  21  03  04  04
0000040
Personality: Aji
ConnectorInfo count in decimal: 4
Disk offset in decimal 1489728
0000000    00  04  00  00  04  03  00  00  00  01  01  01  12  04  05  01
0000010    00  04  00  00  04  03  00  00  00  01  02  01  22  05  04  02
0000020    04  00  00  00  14  02  00  00  00  01  03  00  00  00  03  06
0000030    00  08  00  00  04  02  00  00  00  01  04  00  11  02  01  04
0000040
Personality: Buri
ConnectorInfo count in decimal: 4
Disk offset in decimal 1489792
0000000    02  00  00  00  00  01  00  00  29  05  01  00  10  00  05  05
0000010    00  04  00  00  04  03  00  00  00  09  02  00  11  02  01  01
0000020    00  04  00  00  04  03  00  00  00  09  03  00  21  03  02  02
0000030    00  08  00  00  04  02  00  00  00  01  04  00  12  04  03  03
0000040
Personality: Chutoro
ConnectorInfo count in decimal: 5
Disk offset in decimal 1489856
0000000    02  00  00  00  00  01  00  00  09  01  01  00  12  04  03  03
0000010    00  04  00  00  04  03  00  00  00  01  02  01  11  02  01  01
0000020    00  04  00  00  00  01  00  00  00  09  03  00  21  03  02  02
0000030    00  04  00  00  00  01  00  00  00  09  04  00  22  05  04  04
0000040    00  04  00  00  04  03  00  00  00  01  05  00  10  00  05  05
0000050
Personality: Dashimaki
ConnectorInfo count in decimal: 4
Disk offset in decimal 1489936
0000000    00  04  00  00  04  03  00  00  00  01  01  01  12  04  02  02
0000010    00  04  00  00  04  03  00  00  00  01  02  00  22  05  03  05
0000020    04  00  00  00  14  02  00  00  00  01  03  01  00  00  04  04
0000030    00  08  00  00  04  02  00  00  00  01  04  00  11  02  01  01
0000040
Personality: Ebi
ConnectorInfo count in decimal: 5
Disk offset in decimal 1490000
0000000    02  00  00  00  00  01  00  00  09  01  01  00  12  04  03  03
0000010    00  04  00  00  04  03  00  00  00  01  02  01  11  02  01  01
0000020    00  04  00  00  00  01  00  00  00  09  03  01  21  03  02  02
0000030    00  04  00  00  00  01  00  00  00  09  04  01  22  05  04  04
0000040    00  04  00  00  04  03  00  00  00  01  05  01  10  00  05  05
0000050
Personality: Gari
ConnectorInfo count in decimal: 5
Disk offset in decimal 1490080
0000000    02  00  00  00  00  01  00  00  09  01  01  00  12  04  03  03
0000010    00  04  00  00  04  03  00  00  00  01  02  01  11  02  01  01
0000020    00  04  00  00  00  01  00  00  00  09  03  00  21  03  02  02
0000030    00  04  00  00  00  01  00  00  00  09  04  00  22  05  04  04
0000040    00  04  00  00  04  03  00  00  00  01  05  00  10  00  05  05
0000050
Personality: Futomaki
ConnectorInfo count in decimal: 4
Disk offset in decimal 1490208
0000000    00  04  00  00  04  03  00  00  00  01  01  01  12  04  04  01
0000010    00  04  00  00  04  03  00  00  00  01  02  01  22  05  05  02
0000020    04  00  00  00  14  02  00  00  00  01  03  00  00  00  06  06
0000030    00  08  00  00  04  02  00  00  00  01  04  00  11  02  01  03
0000040
Personality: Hamachi
ConnectorInfo count in decimal: 4
Disk offset in decimal 1490272
0000000    00  04  00  00  04  03  00  00  00  01  01  01  12  04  05  01
0000010    00  04  00  00  04  03  00  00  00  01  02  01  22  05  04  02
0000020    04  00  00  00  14  02  00  00  00  01  03  00  00  00  03  06
0000030    00  08  00  00  04  02  00  00  00  01  04  00  11  02  01  04
0000040
Personality: OPM
ConnectorInfo count in decimal: 6
Disk offset in decimal 1490336
0000000    00  04  00  00  04  03  00  00  00  01  00  01  11  02  01  01
0000010    00  04  00  00  04  03  00  00  00  01  00  01  21  03  02  02
0000020    00  04  00  00  04  03  00  00  00  01  00  01  12  04  03  03
0000030    00  04  00  00  04  03  00  00  00  01  00  01  22  05  04  04
0000040    00  04  00  00  04  03  00  00  00  01  00  01  10  00  05  05
0000050    00  04  00  00  14  03  00  00  00  01  00  01  20  01  06  06
0000060
Personality: Ikura
ConnectorInfo count in decimal: 1
Disk offset in decimal 1490432
0000000    00  08  00  00  04  02  00  00  00  01  01  00  12  04  03  01
0000010
Personality: IkuraS
ConnectorInfo count in decimal: 6
Disk offset in decimal 1490448
0000000    00  04  00  00  04  03  00  00  00  01  01  07  11  02  01  03
0000010    00  04  00  00  04  03  00  00  00  01  02  07  21  03  02  04
0000020    00  04  00  00  04  03  00  00  00  01  03  07  12  04  03  01
0000030    00  04  00  00  04  03  00  00  00  01  04  07  22  05  04  02
0000040    00  04  00  00  04  03  00  00  00  01  05  07  10  00  05  05
0000050    00  04  00  00  04  03  00  00  00  01  06  07  20  01  06  06
0000060
Personality: Junsai
ConnectorInfo count in decimal: 6
Disk offset in decimal 1490544
0000000    00  04  00  00  04  03  00  00  00  01  00  01  12  04  03  01
0000010    00  04  00  00  04  03  00  00  00  01  00  01  22  05  04  02
0000020    00  04  00  00  04  03  00  00  00  01  00  01  11  02  01  03
0000030    00  04  00  00  04  03  00  00  00  01  00  01  21  03  02  04
0000040    00  04  00  00  04  03  00  00  00  01  00  01  10  00  05  05
0000050    00  04  00  00  04  03  00  00  00  01  00  01  20  01  06  06
0000060
Personality: Kani
ConnectorInfo count in decimal: 1
Disk offset in decimal 1490640
0000000    00  08  00  00  04  02  00  00  00  01  01  00  12  04  03  01
0000010
Personality: KaniS
ConnectorInfo count in decimal: 6
Disk offset in decimal 1490656
0000000    00  04  00  00  04  03  00  00  00  01  01  07  11  02  01  03
0000010    00  04  00  00  04  03  00  00  00  01  02  07  21  03  02  04
0000020    00  04  00  00  04  03  00  00  00  01  03  07  12  04  03  01
0000030    00  04  00  00  04  03  00  00  00  01  04  07  22  05  04  02
0000040    00  04  00  00  04  03  00  00  00  01  05  07  10  00  05  05
0000050    00  04  00  00  04  03  00  00  00  01  06  07  20  01  06  06
0000060
Personality: DashimakiS
ConnectorInfo count in decimal: 4
Disk offset in decimal 1490752
0000000    00  04  00  00  04  03  00  00  00  01  01  01  12  04  02  02
0000010    00  04  00  00  04  03  00  00  00  01  02  01  22  05  03  05
0000020    04  00  00  00  14  02  00  00  00  01  03  00  00  00  04  04
0000030    00  08  00  00  04  02  00  00  00  01  04  00  11  02  01  01
0000040
Personality: Maguro
ConnectorInfo count in decimal: 1
Disk offset in decimal 1490816
0000000    00  08  00  00  04  02  00  00  00  01  01  00  12  04  03  01
0000010
Personality: MaguroS
ConnectorInfo count in decimal: 6
Disk offset in decimal 1490832
0000000    00  04  00  00  04  03  00  00  00  01  01  07  11  02  01  03
0000010    00  04  00  00  04  03  00  00  00  01  02  07  21  03  02  04
0000020    00  04  00  00  04  03  00  00  00  01  03  07  12  04  03  01
0000030    00  04  00  00  04  03  00  00  00  01  04  07  22  05  04  02
0000040    00  04  00  00  04  03  00  00  00  01  05  07  10  00  05  05
0000050    00  04  00  00  04  03  00  00  00  01  06  07  20  01  06  06
0000060

Try to pick one that has ports as close as possible to yours. The ports are the first 4 characters - 0004 is DP, 0400 is DVI, 0008 is HDMI. The MacPro6,1 uses the framebuffers that have 6 DP's obviously, so you could also try modifying one of those.

Also, maybe it treats different device-IDs differently? You could try using 0x67981002 as a fake id in Clover which is the ID for AMD D700.

Thanks, will try tonight and report back

I almost sold my Nvidia GTX 760 to buy the ATI 280, I thought ATI would give the 60Hz on the Dell

Sometimes I get the cold boot, but turning off and back on the Dell works out. I am still running 60Hz on the Yosemite Beta 2 14A329r

If I can't get it to work on the AMD card I will sell it and buy NVIDIA GTX 970 or 980 which will be released in 3-4 weeks according to some sources.

=)(= · September 5, 2014

http://www.macrumors.com/2014/09/05/dell-5k-display/

Wow, 1440p retina. Looks like it will use MST .

Dell's UltraSharp 27 Ultra HD 5K monitor will be available in the fourth quarter of this year.

aphex6b · September 7, 2014

Picked up a iiYama Prolite B288UHSU yesterday. I have 4k-HD @ 60hz working in all 3 OS (Ubuntu, Windows and Yosemite) without any tricks, just the good old 660Ti and the GOP firmware.

=)(= · September 16, 2014

I could not get this working at 60Hz using AMD, going to buy Nvidia card very soon.

Btw, the price for UP2414Q has dropped by 150€, in my country they sell it for 600€ now / $800. Shame, should have waited before buying this display

Will buy a MSI 970 tomorrow. Apparently Nvidia drivers added support for Maxwell. Will report back if 60Hz works.

Edit: I got the display to work with Yosemite PB3 and Nvidia Web Drivers but the monitor info shows it's running at 53 Hz, hmmm.

When I move around a window on the screen I see a line in the middle:

I see other graphical bugs too. Must wait for Apple to add Maxwell Support, or for Nvidia to make better driver.

mr.duke.ua · September 27, 2014

I've just connected a new NEC EA244uhd to my hackintosh system with GTX 760 video card. Three OS X versions were tested - 10.9.4 (web driver), 10.9.5 (native and web driver) and 10.10PB2 (web driver). In all cases HiDPI mode @ 60Hz worked perfectly with no additional patches/hacks.

boli · September 28, 2014

I've just connected a new NEC EA244uhd to my hackintosh system with GTX 760 video card. Three OS X versions were tested - 10.9.4 (web driver), 10.9.5 (native and web driver) and 10.10PB2 (web driver). In all cases HiDPI mode @ 60Hz worked perfectly with no additional patches/hacks.

Good to know, thanks for the report. Did you use the MacPro6,1 SMBios? For some of us this seems to be crucial – maybe depending on the boot loader.

(MacPro6,1 is what I'm still using with 10.9.5 + Chameleon + NVidia Driver + Asus P321Q)

=)(= · September 28, 2014

(MacPro6,1 is what I'm still using with 10.9.5 + Chameleon + NVidia Driver + Asus P321Q)

How do you get 60 Hz in 10.9.5, or do you run at 30 Hz? And how come that you display does not black out with MP6,1?

boli · September 28, 2014

How do you get 60 Hz in 10.9.5, or do you run at 30 Hz? And how come that you display does not black out with MP6,1?

It's 60 Hz for sure, but I don't know why it works, or what black out you're referring to – the Asus display just always worked for me, contrary to the Dell 24 and 31.5" displays (which stopped working in one of the 10.9.3 betas, as you reproduced yourself).

In addition to the Asus I'm using an older Dell 24" in portrait 1200x1920 as second display via DVI. Sometimes it stays black after booting, so what I do then is boot with the main (Asus 31.5" UHD) display off, and only when the login screen appears on the secondary display do I turn on the main display. After a few seconds the login fields move over to the main display and all is dandy.

P.S. Thanks for the info on the 900 series Maxwell cards, wouldn't mind one once Far Cry 4 comes out.

60Hz 4K on Mavericks with GTX 760? [UPDATE: 10.9.3 works [UPDATED UPDATE: maybe]]

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