Black screen during boot with Display Port

[Azial]

Hi,

I followed the main installation guide to setup my system. Everything worked good so far with my old Monitor, which had DVI.

Now I have a new Monitor which can only be connected via DisplayPort, HDMI/MHL and Mini-DisplayPort.

Using the HDMI cable, I can see everything like with the old Monitor, but the resolution is only 1080p (even after start-up and is the only resolution available in system settings). Changing Screen resolution in the clover config does nothing apparently:<key>ScreenResolution</key>
<string>2650x1440</string>

The other cable which came with the monitor is a DisplayPort to Mini-DisplayPort cable. Using this, I get a black screen (but signal is there after 3-5 seconds) UNTIL the system fully booted up, I don't even see the MoBo Logo. Is there a way to fix this? All is fine after booting up, I have full resolution.

I read about black screen problems related to some model identifiers, but I have set it like this:
<key>ProductName</key>
<string>MacPro3,1</string>
"About this mac" confirms it i think (early 2008).

I have the standard graphics injection:
<key>Inject</key>
<dict>
<key>ATI</key>
<false/>
<key>Intel</key>
<true/>
<key>NVidia</key>
<false/>
</dict>
I tried with Intel = false and NVidia = true, but it didn't help.

Something which is also bothering me is the long boot time. It takes 45 seconds from pressing ON until I see my Desktop – and I have a SSD! The Timeout for clover is set to 1 second.

Could this be related to the graphics issue?

 

[VioletDragon]

Hi,

I followed the main installation guide to setup my system. Everything worked good so far with my old Monitor, which had DVI.

Now I have a new Monitor which can only be connected via DisplayPort, HDMI/MHL and Mini-DisplayPort.

Using the HDMI cable, I can see everything like with the old Monitor, but the resolution is only 1080p (even after start-up and is the only resolution available in system settings). Changing Screen resolution in the clover config does nothing apparently:<key>ScreenResolution</key>
<string>2650x1440</string>

The other cable which came with the monitor is a DisplayPort to Mini-DisplayPort cable. Using this, I get a black screen (but signal is there after 3-5 seconds) UNTIL the system fully booted up, I don't even see the MoBo Logo. Is there a way to fix this? All is fine after booting up, I have full resolution.

I read about black screen problems related to some model identifiers, but I have set it like this:
<key>ProductName</key>
<string>MacPro3,1</string>
"About this mac" confirms it i think (early 2008).

I have the standard graphics injection:
<key>Inject</key>
<dict>
<key>ATI</key>
<false/>
<key>Intel</key>
<true/>
<key>NVidia</key>
<false/>
</dict>
I tried with Intel = false and NVidia = true, but it didn't help.

Something which is also bothering me is the long boot time. It takes 45 seconds from pressing ON until I see my Desktop – and I have a SSD! The Timeout for clover is set to 1 second.

Could this be related to the graphics issue?

I can remember some 780Ti cards have issues in OS X have you installed nvidia web drivers?

 

[Azial]

The GTX 780 TI needs the webdriver to work anyway, so yeah, it's installed.

 

[VioletDragon]

The GTX 780 TI needs the webdriver to work anyway, so yeah, it's installed.

Are you booting with nvda_drv=1 ? or have you added it to the Config.plist?

 

[slim.jim]

If you aren't seeing the mobo logo when booting then that is not specific to it being a Hackintosh. Make sure you have the GPU set as the initial device in you bios.

 

[Azial]

In the BIOS, the PCIe1 Slot is selected and I have the graphics card in the PCIe 16x slot (which I think is the same. I found it somewhere in the MoBo manual).

In the clover options menu I have:
Boot Args: dart=0 kext-dev-mode=1 rootless=0 nvda_drv=1

Which is strange, because in the config.plist on the EFI partition I only have dart=0 as a boot argument. Where do the other arguments come from? I also noticed, that all kext from multibeast are installed in /Library/Extensions instead of /S/L/E or EFI/CLOVER/kexts/10.11/ (only USB_Series9_Injector.kext is there (which works this way))

Is this intended? Btw, I would like to know more about those details, may you recommend any up-to-date background-information source?

 

[slim.jim]

Library/Extensions is recommended as it keeps the system partition vanilla and won't get written over accidentally when doing a system restore.

The other boot arguments are likely saved in the nvram. You can check this using terminal by typing in sudo nvram boot-args.

 

[Azial]

Thanks for the info!

I kind of solved the Monitor problem: I can set the DP streaming from DP 1.2 to DP 1.1 in the monitor settings.

Unfortunately, then I only get 60 Hz instead of the 144 Hz