drm-nvidia-switch git branch but still vgaswitcheroo not working for i915/nvidia (nouveau) on ASUS U30JC

[Giacomo]

Tried the branchdrm-nvidia-switch .
No way to make vgaswitcheroo work:

both

echo "DDIS" > /sys/kernel/debug/vgaswitcheroo/switch

and

echo "OFF" > /sys/kernel/debug/vgaswitcheroo/switch

hang the machine.

The first command hangs immediately, the second at X restart.

DMESG out in the first case:

Dec 21 22:46:10 daphne kernel: fbcon: Remapping primary device, fb0, to tty 1-63
Dec 21 22:46:10 daphne kernel: calling mux switch 0
Dec 21 22:46:10 daphne kernel: mux switched 0
Dec 21 22:46:10 daphne kernel: ACPI Error: Needed
[Buffer/String/Package], found [Integer] ffff880146f23420
(20101013/exresop-590)
Dec 21 22:46:10 daphne kernel: ACPI Exception: AE_AML_OPERAND_TYPE,
While resolving operands for [OpcodeName unavailable]
(20101013/dswexec-460)
Dec 21 22:46:10 daphne kernel: ACPI Error: Method parse/execution
failed [\_SB_.PCI0.GFX0._DSM] (Node ffff880147c6d1c8),
AE_AML_OPERAND_TYPE (20101013/psparse-537)
Dec 21 22:46:10 daphne kernel: ACPI Error: Method parse/execution
failed [\_SB_.PCI0.PEG1.GFX0._DSM] (Node ffff880147c83830),
AE_AML_OPERAND_TYPE (20101013/psparse-537)
Dec 21 22:46:10 daphne kernel: failed to evaluate _DSM: 12291
Dec 21 22:46:10 daphne kernel: vga_switcheroo: switching failed stage 2 12291

-- here need to press power button to force shutdown ---

Second case (echo "OFF"...):

Dec 21 22:43:44 daphne kernel: VGA switcheroo: switched nouveau off
Dec 21 22:43:44 daphne kernel: [drm] nouveau 0000:01:00.0: Disabling
fbcon acceleration...
Dec 21 22:43:44 daphne kernel: [drm] nouveau 0000:01:00.0: Unpinning
framebuffer(s)...
Dec 21 22:43:44 daphne kernel: [drm] nouveau 0000:01:00.0: Evicting buffers...
Dec 21 22:43:44 daphne kernel: [drm] nouveau 0000:01:00.0: Idling channels...
Dec 21 22:43:44 daphne kernel: [drm] nouveau 0000:01:00.0: Suspending
GPU objects...
Dec 21 22:43:45 daphne kernel: [drm] nouveau 0000:01:00.0: And we're gone!
Dec 21 22:43:45 daphne kernel: nouveau 0000:01:00.0: PCI INT A disabled
Dec 21 22:43:45 daphne kernel: nouveau 0000:01:00.0: power state
changed by ACPI to D3

starting X hangs the machine immediately.

Let me know if I can help more.

Hope to hearing from you soon, Giacomo, Italy.

---
ASUS U30JC
Gentoo Linux.
x11-drivers/xf86-video-nouveau   0.0.16_pre20101130
* drm-nvidia-switch git branch (checkout on dec,22nd)


Giacomo Strangolino
Elettra Synchrotron Radiation Facility
Trieste, Italy


-- 
Giacomo S.
http://www.giacomos.it

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* Informazioni e pagina web ufficiale:
  http://www.giacomos.it/iqfire/index.html

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