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My Asus GTS250 is working fine in SL with the following EFI injection and the correct LCD resolution is also used in Lion.

 

However, the frequency seems a bit off and causes eye strain, it's immediately apparent after booting to the Desktop.

 

My LCD shows 65.3 kHz in both cases in the info panel, though.

 

Any ideas how I can investigate this?

 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>PciRoot(0x0)/Pci(0x1,0x0)/Pci(0x0,0x0)</key>
<dict>
	<key>@0,AAPL,boot-display</key>
	<string>0x00000001</string>
	<key>@0,compatible</key>
	<data>
	TlZEQSxOVk1hYwA=
	</data>
	<key>@0,device_type</key>
	<data>
	ZGlzcGxheQA=
	</data>
	<key>@0,display-cfg</key>
	<string>0xffffffff</string>
	<key>@0,name</key>
	<data>
	TlZEQSxEaXNwbGF5LUEA
	</data>
	<key>@1,compatible</key>
	<data>
	TlZEQSxOVk1hYwA=
	</data>
	<key>@1,device_type</key>
	<data>
	ZGlzcGxheQA=
	</data>
	<key>@1,display-cfg</key>
	<string>0xffffffff</string>
	<key>@1,name</key>
	<data>
	TlZEQSxEaXNwbGF5LUIA
	</data>
	<key>AAPL,slot-name</key>
	<string>Slot-1</string>
	<key>NVCAP</key>
	<data>
	BAAAAAAAAwAMAAAAAAAACgAAAAA=
	</data>
	<key>NVPM</key>
	<data>
	AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==
	</data>
	<key>VRAM,totalsize</key>
	<string>0x20000000</string>
	<key>device_type</key>
	<data>
	TlZEQSxQYXJlbnQA
	</data>
	<key>model</key>
	<data>
	R2VGb3JjZSBHVFMgMjUwAA==
	</data>
	<key>rom-revision</key>
	<data>
	NjIuOTIuNUQuMDAuMDEA
	</data>
</dict>
<key>PciRoot(0x0)/Pci(0x1c,0x5)/Pci(0x0,0x0)</key>
<dict>
	<key>built-in</key>
	<string>0x01</string>
</dict>
</dict>
</plist>

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The EFI injection is generated by Chameleon, yes. Haven't tried DSDT injection.

 

My LCD is currently connected via HDMI (GPU) -> DVI (LCD) cable. This is the only way to get a non-flickering screen.

If I connect the LCD via DVI -> DVI, the same flickering occurs and the display shows 64.7 kHz and 59Hz instead of the usual 65.3 kHz and 60Hz which I also get under windows.

 

Some games leave my screen black, where as there are no problems with fullscreen games connecting via DVI.

 

This leaves me puzzled to say the least. I'm hoping the new drivers in 10.7.2 will fix it for me.

By extracting the VROM of my card with nvflash under FreeDOS, I found out that the NVCAP is different from GraphicsEnabler.

 

Chameleon:

04000000 00000300 0C000000 0000000A 00000000

 

VROM:

04000000000003000c0000000000000700000000

The new NVCAP enabled correct dual-display output using both the HDMI and DVI ports on my card.

 

This is the guide I followed: http://uphuck.ggrn.de/forum/viewtopic.php?f=7&t=4239

 

But even with the new drivers in 10.7.2 the LCD is still drived differently. SL shows 65.3 kHz and Lion 65 kHz now.

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