Posted 23 April 2010 - 03:08 PM
Posted 23 April 2010 - 08:52 PM
Posted 27 April 2010 - 07:15 PM
Posted 27 April 2010 - 07:54 PM
Yoz el_charlie, check out the whole post, it's indeed an HDMI issue, not DVI. Yes they are both digital, but interact differently, this issue confirms this.
I'm sorry to disagree.
HDMI and DVI ARE electrically compatible, therefore, HDMI is just a DVI cable with a different connector plus audio signal. Otherwise they are the same thing. Same number of pins (except audio), same everything. That's why DVI is forward compatible with HDMI.
My card doesnt' have a HDMI output so this issue could be related to the HDMI output only for video cards with hdmi outputs. If I use an adapter I probably won't experience the issue.
Posted 28 April 2010 - 06:28 AM
Posted 30 April 2010 - 08:48 PM
HDMI without HDCP and DVI without HDCP are the exact same thing. The issue seems to be driver based in that the HDMI displays are trying to do a proper HDCP handshake with the GPU and failing, thus the black screen.
I can confirm it is totally possible to get an HDMI monitor with HDCP working under 10.6.3. My guess is that the NVidia 8xxx series cards may not have full driver support for HDCP, even though they have full hardware support for HDCP. Since Apple uses the 9600 and 9400 in the MacBook Pros, the 9xxx series of cards seem to be working better with HDCP displays. However, I have seen results where it is possible to get both 7xxx and 8xxx series cards working with HDMI-based HDCP displays.
Posted 30 April 2010 - 09:10 PM
I also read somewhere that the issue was with HDCP but that makes me wonder why it doesn't happen with DVI since DVI also has (or should have) HDCP. On windows HDCP is working on my computer and I can check the HDCP status on NVIDIA control panel. It only works if I turn on the monitor before Windows boots. If I turn it on after it boots the control panel says that my system is not HDCP capable.
On the service menu of my HDTV monitor (Samsung T260HD) there's an option to control the HDCP behaviour when the monitor is on after the OS.
Like you said, it's a driver issue. Maybe Netkas will find a solution first.
Posted 01 May 2010 - 02:36 PM
Posted 01 May 2010 - 04:50 PM
I can boot into Windows and post my NVCAP here but I think it will be useless 'cause I'm using DVI with HDCP. maybe with HDMI it's different.
I advise people with the issue of black screen to boot into Windows and check on tne NVIDIA control panel if their HDCP is working. If it's working, they can get their own NVCAP values.
Posted 01 May 2010 - 05:06 PM
After having read through all of the discussion, I'd like to provide my DSDT code for GFX.
If anyone wants the modified NVDANV50Hal.kext, NVDAREsman.kext, can post here again.
Lastly, the HDMI part is the biggest hurdle in Snow Leopard, bit difficult in Leopard. And not available in Tiger though.
So "athena", if you do want this working, you would have to resort to heavy duty DSDT.aml patching.
That's the only way. Yet.
My DSDT code for GFX0:
Name (_ADR, 0x00010000)
Name (_ADR, Zero)
Name (_SUN, One)
Method (_DSM, 4, NotSerialized)
Store (Package (0x18)
/* 0000 */ 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00,
/* 0008 */ 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07,
/* 0010 */ 0x00, 0x00, 0x00, 0x00
/* 0000 */ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 0008 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 0010 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* 0018 */ 0x00, 0x00, 0x00, 0x00
0x00, 0x00, 0x00, 0x20
"XFX nVidia GeForce 9800GT 512MB"
"nVidia GeForce 9800 GT OpenGL Engine"
DTGP (Arg0, Arg1, Arg2, Arg3, RefOf (Local0))
Awaiting your feedback
Posted 01 May 2010 - 08:49 PM
My card is the same as my signature (EVGA 8800GT Superclocked 512MB) and it works well with HDCP on Windows with my Samsung T260HD HDTV monitor..
Hope it helps a bit.
Posted 02 May 2010 - 05:06 PM
Now if you are using AsereBLN bootloader version 1.1.9, try adding this NVCAP value according to these instructions at the very bottom of the page. You can find the Device ID for your GPU in System Profiler:
When I use NVCAPMaker it gives me this value:
Let us know if that makes any difference for you. Changing the NVCAP is a subset of the changes Freak Chokra posted in his DSDT a few posts back, so you might be able to make this small modification, use GraphicsEnabler (no EFI strings) and get HDCP working.
Posted 10 May 2010 - 03:14 PM
Can anyone advise on a graphics card that has no problems with HDMI as I'm sick of using the VGA cable?
Posted 10 May 2010 - 04:10 PM
Posted 10 May 2010 - 04:14 PM
Posted 10 May 2010 - 05:18 PM
I had the blank screen when using HDMI issue with my 9800GT in 10.6.2 and 10.6.3.
I found two relatively cheap cards that i have tested and work fully for me in the mean time until this is fixed. Both can be installed simply by using graphics enabler in charmelion under 10.6.3.
Asus EN9400GT silent 512MB
Sparkle GeForce GT 220 1024MB
Both have three ports, one of each a VGA, DVI and HDMI. (Although I havnt tested this, im assume you can only use two at any given time.) I tested both with dual monitors in the DVI and HDMI ports.
Hope that helps
Posted 10 May 2010 - 07:01 PM
Posted 11 May 2010 - 11:39 PM
Posted 12 May 2010 - 08:21 PM
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