[Nouveau] [Bug 25938] black screen on the iMac powerpc using nouveau

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=25938





--- Comment #2 from Andrea Tacconi <tacconet at libero.it>  2010-01-13 02:46:49 PST ---
the problem of black screen seems to be resolved adding the following patch:
Adding nv18 card identifier to Powerbook specific quirks
in nouveau kernel module:
diff nouveau_bios.c.old nouveau_bios.c
3199c3199
<       if (script == LVDS_RESET && ((dev->pci_device & 0xffff) == 0x0179 ||
(dev->pci_device & 0xffff) == 0x0329))
---
> 	if (script == LVDS_RESET && ((dev->pci_device & 0xffff) == 0x0179 ||(dev->pci_device & 0xffff) == 0x0189 || (dev->pci_device & 0xffff) == 0x0329))

same as in xorg driver:

diff nv_bios.c.old nv_bios.c
2592c2592
<       if (script == LVDS_RESET && ((pNv->Chipset & 0xffff) == 0x0179 ||
(pNv->Chipset & 0xffff) == 0x0329))
---
> 	if (script == LVDS_RESET && ((pNv->Chipset & 0xffff) == 0x0179 ||(pNv->Chipset & 0xffff) == 0x0189 || (pNv->Chipset & 0xffff) == 0x0329))

Now both framebuffer console and Xorg work.

But there is another problem with TV-out:
When turned on the TV output is in contrast with the LVDS output and set the
screen resolution of 720x576 on the console framebuffer.


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