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boli

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About boli

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    InsanelyMac Protégé

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  1. Just tested: a Dell P2715Q does not offer its native Ultra HD resolution on a 27" iMac14,2 (fall 2013, GeForce GTX 775M) running OS X 10.10.2, but only 2560x1440. I know this iMac can run other Ultra HD displays at 30 Hz, but for now, not even this works. Updates: The newest NVidia web drivers did not help. The display did run at full resolution and 60 Hz on a 5K iMac15,1 (fall 2014, AMD Radeon R9 M290X) running OS X 10.10.1!
  2. Another heads up: I switched back to the Dell UP3214Q instead of the Asus PQ321 again. You might remember that (unlike the Asus) the Dell didn't work for me at 60 Hz back in Mavericks. I haven't tried in Yosemite until today and I'm happy to report that the Dell now works in 60 Hz. I still need to have it powered down on boot, while a second (non-UHD) display is attached and gets the login screen, then I can turn on the main display and the login screen will jump over to it.
  3. Just a heads up: After installing the newest NVidia v343.02 driver my PQ321 no longer worked with MST in 60 Hz. I reverted to v343.01 and it works again.
  4. I upgraded my Hackintosh to Yosemite as well, and changed from Chameleon to Clover boot loader at the same time (took me a while to figure out that my mainboard won't boot Clover in UEFI mode). As I didn't want to mess with kexts I just switched to the Mac Mini SMBios as mentioned on the previous page. I still don't get a signal on my ASUS PQ321Q after booting, the login screen is on my secondary 1200x1920 display instead. As with Mavericks I turn the ASUS PQ321Q off and the on again, so the login screen will move over to it, and all is fine. 60 Hz and everything.
  5. 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.
  6. 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)
  7. I would guess most people who are into this topic know all of this already. Additionally, nowadays there are some displays that can do UHD @ ~60 Hz with SST, such as the Asus P287Q, Samsung U28D590D or Lenovo Pro2840m. Of these at least the Asus model works fine on a Hack. And while OS X officially supports some MST displays and HiDPI scaling since 10.9.3 (a little earlier for the Mac Pro), some of those officially supported displays (namely the Dell models) do not work properly on Hack (when running OS X that is, they work fine in Windows), see earlier posts. Speaking about Dell, I moved the Dell UP3214Q to my office today, and on a Mac Pro (late 2013) it runs fine at 60 Hz, same as the secondary display (UP2414Q). Yesterday I moved a (Mac ROM) GTX 680 (which I had sold to a friend earlier, long story) back into my old Mac Pro (see sig), replacing a Radeon 5870, updated the Mac Pro to 10.9.4 (it hadn't been used in months ) to give the Dell a try before I took it away. In the Displays preference pane it didn't show the usual 5 scalings/resolutions, but instead it showed the selection list that is usually only displayed once the Scaled radio button is clicked while the Option key is pressed. It could run the display at full resolution, but 30 Hz only. I'll give the ASUS PQ321 a try once I took it back home, to see if that's a Dell-specific issue.
  8. Updating to 10.9.4 didn't help make the UP3214Q work any better either. Also I noticed that when you Option-click the Scaled button in the Displays preference pane to display more resolutions, and also check Show low resolution modes, it does show the Refresh rate popup menu once again. It reads 30.3 Hz when the display stays black, and unfortunately the popup menu is grayed out, so one can't select any other refresh rates.
  9. Thanks, that's what I'm currently doing (given I still boot into Win 8.1 from time to time and want to avoid switching the DisplayPort 1.2 setting; even though it's far easier to do than on the ASUS because of DELLs good on-screen menu and buttons). BTW given it still won't run at 60 Hz I might eventually swap it with the ASUS 31.5", which is currently on a Mac Pro at work.
  10. Yeah, and MST isn't necessarily the culprit, as my 31.5" ASUS works just fine with it. Also, the 24" Dell worked perfectly with some of the earlier 10.9.3 betas, and Windows 8.1, and on a real MacPro6,1 with 10.9.3/10.9.4. :-/ BTW the 31.5" Dell replaced the 28" ASUS (sold it to a friend) so I'm back to 3x IPS, all of them with MST.
  11. Still no luck with the UP3214Q: With MacPro3,1 SMBios: Same behavior as with iMac14,2 With MacPro5,1 SMBios: Kernel panic during boot process With MacBookPro11,3 SMBios: Same behavior as with iMac14,2 Clover USB stick: while I could select my internal boot drive (with MacPro6,1 SMBios on it) it would not boot - both displays stayed black so I shut down after a while ​I wonder if there's a firmware update available for the display that would help.
  12. Yes, that's also on the TODO list, as well as that Clover USB Stick with default SMBIOS combined with MacPro6,1 SMBios on the internal drive hybrid method that worked for somebody else.
  13. Got a 31.5" Dell UP3214Q as main display on my Hack now. Unsurprisingly, it has the same problems that the 24" had: Using MacPro6,1 SMBios with DisplayPort 1.2 setting off it runs at 30 Hz, including proper scaling options Using MacPro6,1 SMBios with DisplayPort 1.2 setting on it stays black, with its power light flickering and menu unavailable because it can't detect any input source Using iMac14,2 SMBios with DisplayPort 1.2 setting on or off (does not matter) it runs at 30 Hz, including proper scaling options. That's using OS X 10.9.3 and Chameleon v2.2 r2377. I'll try more stuff later, such as 10.9.4 upgrade.
  14. Anyone know if the 31.5" Dell UP3214Q works with a Hack? The only thing I found so far is that it does work on a Mac Pro (late 2013) according to this video, and in its comments the poster mentions that it runs at 60 Hz (two of them at least, not the 3rd). Also it is mentioned in Apples 4K support document. So I'm at least somewhat hopeful. On the other hand, the 24" Dell runs fine [1] on a Mac Pro (late 2013, at work, with ASUS PQ321Q as main display), but was a bit troublesome on my Hack (at home, where I'm currently running an ASUS 28" PB287Q). [1] Except that the Mac Pro can't run it in portrait mode, where the Hack could.
  15. Yes, I'm running it at 2560x1440 HiDPI, which means the image is rendered at 5120x2880, and displayed at the display's native 3840x2160. Sadly the HiDPI part does not show up in System Information. This is the resolution I'm using (note the image is from this article about the Samsung U28D590 and not my own machine). If your definition of "retina resolution" is "2x2 physical pixels for every logical pixel", then yes, it should. Personally I think that while 1920x1080 HiDPI provides the sharpest possible image, stuff is way too large on a 28" display - let alone the 31.5" I was using before that.
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