bumblebee team mailing list archive

[Metatech <metatechbe@xxxxxxxxx>]

Hi Bumblebee team,

I installed Bumblebee in Ubuntu 12.04 64-bit on a Dell Latitude E6530
following the instructions here :
http://ubuntuguide.net/turn-off-discrete-nvidia-optimus-graphics-card-ubuntu

I ran tee /proc/acpi/bbswitch <<<OFF
This setting is permanent !
After a few hot reboots, the screen was still working normally.

However, when I tried to run bbswitch again, I saw the error
modprobe bbswitch
FATAL: Error inserting bbswitch
(/lib/modules/3.2.0-23-generic/updates/dkms/bbswitch.ko): No such
device

The next day, after a cold reboot, the screen remains permanently black !
Cold reboots do not fix the problem.
Now I can only access my computer remotely through SSH, which is very
inconvenient.
The Nvidia card does not appear anymore in the "lspci" output.

I tried various PCI "rescans", but nothing worked.

I tried the old acpi_call.c, but I have the error message AE_NOT_FOUND :
=====
root@Latitude:~/# echo '\_SB.PCI0.PEG0.VID._DSM' > /proc/acpi/call
root@Latitude:~/# cat /proc/acpi/call
Error: AE_NOT_FOUND
=====

How can I reset the device completely ?
Is there a way to force the ACPI to power up again the device ?

Thanks in advance,

metatech


=========
00:00.0 Host bridge [0600]: Intel Corporation Ivy Bridge DRAM
Controller [8086:0154] (rev 09)
00:02.0 VGA compatible controller [0300]: Intel Corporation Ivy Bridge
Graphics Controller [8086:0166] (rev 09)
00:14.0 USB controller [0c03]: Intel Corporation Panther Point USB
xHCI Host Controller [8086:1e31] (rev 04)
00:16.0 Communication controller [0780]: Intel Corporation Panther
Point MEI Controller #1 [8086:1e3a] (rev 04)
00:19.0 Ethernet controller [0200]: Intel Corporation 82579LM Gigabit
Network Connection [8086:1502] (rev 04)
00:1a.0 USB controller [0c03]: Intel Corporation Panther Point USB
Enhanced Host Controller #2 [8086:1e2d] (rev 04)
00:1b.0 Audio device [0403]: Intel Corporation Panther Point High
Definition Audio Controller [8086:1e20] (rev 04)
00:1c.0 PCI bridge [0604]: Intel Corporation Panther Point PCI Express
Root Port 1 [8086:1e10] (rev c4)
00:1c.1 PCI bridge [0604]: Intel Corporation Panther Point PCI Express
Root Port 2 [8086:1e12] (rev c4)
00:1c.2 PCI bridge [0604]: Intel Corporation Panther Point PCI Express
Root Port 3 [8086:1e14] (rev c4)
00:1c.3 PCI bridge [0604]: Intel Corporation Panther Point PCI Express
Root Port 4 [8086:1e16] (rev c4)
00:1c.5 PCI bridge [0604]: Intel Corporation Panther Point PCI Express
Root Port 6 [8086:1e1a] (rev c4)
00:1d.0 USB controller [0c03]: Intel Corporation Panther Point USB
Enhanced Host Controller #1 [8086:1e26] (rev 04)
00:1f.0 ISA bridge [0601]: Intel Corporation Panther Point LPC
Controller [8086:1e55] (rev 04)
00:1f.2 RAID bus controller [0104]: Intel Corporation 82801 Mobile
SATA Controller [RAID mode] [8086:282a] (rev 04)
00:1f.3 SMBus [0c05]: Intel Corporation Panther Point SMBus Controller
[8086:1e22] (rev 04)
02:00.0 Network controller [0280]: Intel Corporation Centrino
Advanced-N 6205 [8086:0082] (rev 34)
0b:00.0 SD Host controller [0805]: O2 Micro, Inc. Device [1217:8221] (rev 05)
============
Aug  1 22:23:37 Latitude kernel: [  299.052893] bbswitch: version 0.4.2
Aug  1 22:23:37 Latitude kernel: [  299.052904] bbswitch: Found
integrated VGA device 0000:00:02.0: \_SB_.PCI0.VID_
Aug  1 22:23:37 Latitude kernel: [  299.052917] bbswitch: Found
discrete VGA device 0000:01:00.0: \_SB_.PCI0.PEG0.VID_
Aug  1 22:23:37 Latitude kernel: [  299.053518] bbswitch: detected an
Optimus _DSM function
Aug  1 22:23:37 Latitude kernel: [  299.053529] bbswitch: Succesfully
loaded. Discrete card 0000:01:00.0 is on
Aug  1 22:23:37 Latitude kernel: [  299.071916] nvidia 0000:01:00.0:
PCI INT A disabled
Aug  1 22:23:37 Latitude kernel: [  299.073985] bbswitch: disabling
discrete graphics
Aug  1 22:23:37 Latitude kernel: [  299.074578] bbswitch: Result of
Optimus _DSM call: 11000059
Aug  1 22:23:37 Latitude kernel: [  299.087816] pci 0000:01:00.0:
Refused to change power state, currently in D0
Aug  1 22:23:37 Latitude kernel: [  299.177066] pci 0000:01:00.0:
power state changed by ACPI to D3
Aug  1 22:23:37 Latitude kernel: [  299.177303] bbswitch: enabling
discrete graphics
Aug  1 22:23:38 Latitude kernel: [  299.888117] pci 0000:01:00.0:
power state changed by ACPI to D0
Aug  1 22:23:38 Latitude kernel: [  299.888130] pci 0000:01:00.0:
power state changed by ACPI to D0
Aug  1 22:23:38 Latitude kernel: [  299.888176] pci 0000:01:00.0:
restoring config space at offset 0x3 (was 0x10, writing 0x800010)
Aug  1 22:23:38 Latitude kernel: [  299.888204] pci 0000:01:00.0:
power state changed by ACPI to D0
Aug  1 22:23:38 Latitude kernel: [  299.888209] pci 0000:01:00.0:
power state changed by ACPI to D0
Aug  1 22:23:38 Latitude kernel: [  299.888221] pci 0000:01:00.0: PCI
INT A -> GSI 16 (level, low) -> IRQ 16
Aug  1 22:23:38 Latitude kernel: [  299.888230] pci 0000:01:00.0:
setting latency timer to 64
Aug  1 22:23:38 Latitude kernel: [  299.902569] bbswitch: disabling
discrete graphics
Aug  1 22:23:38 Latitude kernel: [  299.903174] bbswitch: Result of
Optimus _DSM call: 11000059
Aug  1 22:23:38 Latitude kernel: [  300.217064] pci 0000:01:00.0:
power state changed by ACPI to D3