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10.6.3 nVidia Blank Screen Issue with DVI/HDMI on 9800GT


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#21
Kevsapple

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Add your video card's device ID to NVDAResman.kext and the NVDANVx0Hal.kext that matches your Nvidia chip.
For 8xxx series and above this is normally NVDANV50Hal.kext.

Complete guide here: http://www.projectos...php?showtopic=4


Still only works on VGA, I have no Kext in extra file except the extensions kext should I have something with it?

#22
caxio

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i come back whit time machine to 10.6.2 for now no solution for 9800 gt and hdmi in 10.6.3

#23
mihailo Gazda

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+1

Please help i have Gigabyte's 9800GT 512 (running as G92) on SnowLeopard 10.6.2.

#24
goodbye losers

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+1

8800GT no HDMI with 10.6.3

#25
hotcorez

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Hi Guys,

Considering that, to achieve correct working of hdmi fed monitors from dvi output in windows you have to insert a registry EDID override. For nvidia you have to modify nv_disp.inf and add your edid override in there. I think this is so it forces it to use DVI over HDMI (switch off tv mode for that monitor)

Do you think that the monitor overrides on 10.6.3 are different?

According to this info, they are stored here in /System/Library/Displays/Overrides/

http://reviews.cnet....472124-263.html

I think this is worth looking into. Without the above Windows Nvidia Driver fix my TV will not work in dvi mode over HDMI and i get a blank screen. Familiar?

Please can someone investigate this. Maybe backup the 10.6.3 overrides and replace them with ones from 10.6.2?

If you have a second machine, you can add a root password to your experimental machine and enable remote ssh connection in sharing, then if it boots into blank screen, logon remotely over lan to reboot, sleep or shutdown the machine. This way the drives are unmounted gracefully i think.

If you decide to sleep the machine, you can switch the cable to a dvi/hdmi to vga cable and wake onto VGA.

Anyway, I hope this gives you all some ideas :censored2: Good luck. Hopefully there will be a workaround soon. Might need a modbin!

Some Useful Links:-

http://forums.nvidia...howtopic=102572

anyone familiar with the nvidia edid override modifications knows that they change regularly in new driver revisions, forcing you to jump through new hoops!! Don´t upgrade a working system till you have to!!

link to a working windows fix for some 19x drivers :-

http://hardforum.com...1167222&page=88

#26
A

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any progress?
I guess most people due to not having a hdtv wont notice they got that problem...

#27
andrew.caswell

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NO.

I am having the same problem going from 10.6.2 to 10.6.3 and having a DVI - HDMI freeze on bootup. I have tried using the KEXT fix that worked for 10.6.2 update however this only enabled my display to function in 800x600. I then tried to install injectors and EFI strings to get my resolutions back however nothing has worked. Now back on 10.6.2 waiting for a solution. PLEASE help fix.

Graphics :- 8600gt
MOBO:- EP45-DS3
Processor: :- Q6600.

Kind Regards

#28
roberdo

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Since my Mobo is defective and has been returned (Gigabyte G41M-E2SL) I cannot start the update at the moment.
But as an owner of an Nvidia Geforce 9800Gt 512M with VGA, DVI and HDMI interface I can remember I had the same issue when updating from 10.6.1 to 10.6.2. I had a black sreen and desktop was not show.
My 9800GT is/was just configured with EFI string in Boot.plist.
At this time I decided to start from scratch. Did a new installation of 10.6 with standard kexts (LAN worked oob) and made it bootable with Chameleon. Did then a Software-Update to 10.6.2 which was successful. After that I added my EFI-string for the NVIDIA card in the boot.plist, did a restart and everything worked well.
Maybe this could be the best strategy: Before updating to delete the EFI string, disable graphics enabler and redo this after update to 10.6.3.
I will tell you my experience as soon I get my Mobo back (could take 2 weeks).

#29
xristoforos

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Add your video card's device ID to NVDAResman.kext and the NVDANVx0Hal.kext that matches your Nvidia chip.
For 8xxx series and above this is normally NVDANV50Hal.kext.

Complete guide here: http://www.projectos...php?showtopic=4

Unfortunately, it didn't work for me..


At this time I decided to start from scratch. Did a new installation of 10.6 with standard kexts (LAN worked oob) and made it bootable with Chameleon. Did then a Software-Update to 10.6.2 which was successful. After that I added my EFI-string for the NVIDIA card in the boot.plist, did a restart and everything worked well.
Maybe this could be the best strategy: Before updating to delete the EFI string, disable graphics enabler and redo this after update to 10.6.3.
I will tell you my experience as soon I get my Mobo back (could take 2 weeks).

I just tried it (delete the EFI string, disable graphics enabler and redo this after update to 10.6.3) and it didn't work. It still freezes when I connect my HDMI monitor.

#30
LogicalUser

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I was able to get the OS bootable for experimentation purposes by removing the "graphicsenabler=yes" or EFI strings in the boot.plist, but no luck actually *solving* the problem yet, just got it running with generic drivers & resolution

Makes me wish I'd gotten around to time machine on this particular machine and could easily downgrade.... :/

#31
termosen

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Same problem here, black screen when I connect a HDMO monitor... Card: 9800gtx, CPU:Q6600, Board: Gigabyte DS3

#32
atom069

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Well this is nothing new, this was implemented back in 10.6.2 for any users using multi-display to a HDMI as well. In 10.6.2 you could relieve this by just putting the 10.6.1 Nvidia kexts (NVDANV50Hal.kext and NVDAResman.kext) in your S/L/E folder. This is not the case with 10.6.3, DVI-HDMI hardware support will be gone, no QE/CI.

Try putting -x -v in safemode, I was able to even change my resolution and refresh rate. There will be a fix for this eventually im sure, if not better get back to 10.6.2

#33
FuManchu84

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+1 with 8600GT
:) I'm rolling back to 10.6.2 with kexts from 10.6.1

#34
Miroslav Otsedarski

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I'm stuck too with 9800 GT 512 MB
After adding the Device ID in NVDAResman.kext and NVDANV50Hal.kext nothing happend.
When i connect my FullHD TV with DVI-to-HDMI Cable everything freezes. Please help

#35
RickyTan

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See possible solution for 10.6.2 and 10.6.3 problems with DVI/HDMI monitors here:

http://www.insanelym...p...t&p=1452539

#36
JFLNYC

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I'm about to try my own variation of this solution. In the meantime, please be aware that it seems to rely heavily on an extensively patched DSDT file customized for an EX58-UD5 mobo which, of course, will not necessarily work for other mobos. I'll report back after I try (I'm using an EP45-UD3R).

#37
A

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some progress. thats a good thing.
JFLNYC please report back when us discover something.

#38
JFLNYC

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Unfortunately, it didn't work for me. But my setup is different enough that I'm not sure it means anything. I have an EP45-UD3R mobo, am using Cartri's BIOS, with a DSDT file customized for my setup (including the GTS 250 card) and running in 64 bits. I also didn't use DD's script but, rather, simply used the "boot" file from the AsereBLN_v1.19 Bootloader. I did so because I have my graphics card running perfectly with my customized BIOS and without an EFI string already in 10.6.2. I also left the IOAHCIBlockStorageInjector, JMicronATA and LegacyHDA kexts in my Extra folder, since I doubt they have any influence on graphics.

So, YMMV and I may tinker around with things some more. But the differences between the setup in the suggested fix and mine made the fix unworkable for me, at least as of now.

#39
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I also tried graphicsenabler multiple times.... no luck there.

Im on a quite similar UD3LR, 8800GT also using Aseres Bootloader.

Definitely saw problems with future updates coming when there was no real fix on 10.6.1 :D

#40
el_charlie

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I currently use 10.6.3 with vanilla kexts on a EVGA 8800GT 512MB Superclocked card with DVI and works fine.

It should workd on HDMI too, because according to wikipedia, DVI and HDMI are electrically compatible. I don't have a DVI to HDMI cable to try, but I think it'll work.

My monitor is a 26 in Samsung T260HD.

I use Chameleon 2 RC4 with GraphicsEnabler and a modded (GPU speeds) MacPro's 8800GT video bios on (EFI)/Extra.

Cheers!





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