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Snow Leopard on Vaio TZ (tz31vn) - internal display not enabled


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#1
mcil

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Hi!

I've installed Snow Leopard 10.6.4 on a Vaio TZ (model TZ31VN), using NetbookInstaller.
Most of things work "out of the box", but I can't manage to use the internal LCD display, the output is going to the VGA port.
This machine has an Intel 945GM graphics. In Snow Leopard it is recognized as GMA 950 and QE/CI is working fine on the VGA display.
Does anybody know how to activate the internal display?
I found threads with people having similar problems on VAIOs with Nvidia graphics, but I don't find anything regarding the same problem with Intel graphics chips.

#2
mcil

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I managed to make it work!! QE/CI is enabled and output is going to the internal LCD display.

I had to combine two solutions:

a ) Patch DSDT.aml with DSDTSE, inserting the PNFL device. This solution is mentioned here:

http://www.insanelym...howtopic=217096

The way to insert the device is:

Add the following to your DSDT (under Scope (_SB)…)
Device (PNLF)
{
Name (_HID, EisaId ("APP0002"))
Name (_CID, "backlight")
Name (_UID, 0x0A)
Name (_STA, 0x0B)
}




b ) Install an old version of AppleIntelIntegratedFramebuffer.kext from this thread:
http://www.insanelym...p...199572&st=0 (I didn't need to install the remained kext mentioned in that thread, only the framebuffer).

#3
MochaAddict

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Your fix has me on the right track.

I finally have an internal monitor that works, but if I want to display on my external monitor, I still have to unplug, wait a couple seconds, then replug in my external. Is there a known fix for this?

Thanks.

#4
hdesk

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I managed to make it work!! QE/CI is enabled and output is going to the internal LCD display.

I had to combine two solutions:

a ) Patch DSDT.aml with DSDTSE, inserting the PNFL device. This solution is mentioned here:

http://www.insanelym...howtopic=217096

The way to insert the device is:

Add the following to your DSDT (under Scope (_SB)…)
Device (PNLF)
{
Name (_HID, EisaId ("APP0002"))
Name (_CID, "backlight")
Name (_UID, 0x0A)
Name (_STA, 0x0B)
}




b ) Install an old version of AppleIntelIntegratedFramebuffer.kext from this thread:
http://www.insanelym...p...199572&st=0 (I didn't need to install the remained kext mentioned in that thread, only the framebuffer).



I

I have snoy vaio vgn-fz31s

Nvidea GeForce 8600M GS - i tried your instruction but not function

when i enable GraphicsEnabler=YES my internal display is black...

sorry for may english!

regard!!! ;)

#5
oita

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The way to insert the device is:

[i]Add the following to your DSDT (under Scope (_SB)…)


Could you please explain in detail how to add this to the DSDT? I don't know where Scope (_SB...) is.
Thank you.

#6
mcil

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Your fix has me on the right track.

I finally have an internal monitor that works, but if I want to display on my external monitor, I still have to unplug, wait a couple seconds, then replug in my external. Is there a known fix for this?

Thanks.


Try Switchresx : http://www.madrau.com/indexSRX4.html

It can configure external displays and sometimes it can pull a miracle in terms of custom configurations.

#7
adv_x

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With old version of AppleIntelIntegratedFramebuffer.kext (1.4.18) I lost the ability to adjust screen brightness, but the rest works

#8
mcil

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If you guys have problem to make the TZ screen stick to 1366x768 resolution, it is because sometimes the EDID is not properly detected at boot time.

I followed these instructions to make it always work at the right screen definition:

http://www.insanelym...p;mode=threaded

#9
mcil

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I also found out that the webcam works with this kext:

http://www.kexts.com...reuploaded.html

Just copy RicohWebcamUSB.kext to /Extra/Extensions, set kext permissions and ownership, and it should work after reboot.





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