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Hi I'm coming back from a short session using Ubuntu. Previously I've always used acpi_call (from AUR) to turn off my Nvida card to gain full battery life. It has served me well all the time but now I cant get it to work at all and since I'm used to keep my laptop with me during the day without power adapter it's kind of a deal breaker.
The procedure:
[root@eta richard]# lsmod | grep acpi_call
[root@eta richard]# acpi
Battery 0: Discharging, 78%, 03:03:57 remaining
[root@eta richard]# insmod /usr/lib/modules/3.6.6-1-ARCH/kernel/drivers/acpi/acpi_call.ko
[root@eta richard]# lsmod | grep acpi_call
acpi_call 4791 0
[root@eta richard]# test_off.sh
Trying \_SB.PCI0.P0P1.VGA._OFF: failed
Trying \_SB.PCI0.P0P2.VGA._OFF: failed
Trying \_SB_.PCI0.OVGA.ATPX: failed
Trying \_SB_.PCI0.OVGA.XTPX: failed
Trying \_SB.PCI0.P0P3.PEGP._OFF: failed
Trying \_SB.PCI0.P0P2.PEGP._OFF: failed
Trying \_SB.PCI0.P0P1.PEGP._OFF: failed
Trying \_SB.PCI0.MXR0.MXM0._OFF: failed
Trying \_SB.PCI0.PEG1.GFX0._OFF: works!
[root@eta richard]# cat /proc/acpi/call
not called
[root@eta richard]#
[root@eta richard]# echo '\_SB.PCI0.PEG1.GFX0._OFF' > /proc/acpi/call
[root@eta richard]# cat /proc/acpi/call
0x0
[root@eta richard]# acpi
Battery 0: Discharging, 78%, 03:01:07 remaining
(edited slightly to make it more readable)
Neither dmesg nor journalctl says anything else than that it was loaded correctly.
Have I missed something or does anyone know any solution?
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1. acpi_call does not work through suspend/resumes.
2. acpi_call should not be used when a driver is loaded.
3. use bbswitch instead (see also http://wiki.bumblebee-project.org/Compa … M-methods).
See https://wiki.archlinux.org/index.php/Bu … Management (note that the rc.d script mentioned there is obsolete, it should be converted to systemd).
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1. acpi_call does not work through suspend/resumes.
2. acpi_call should not be used when a driver is loaded.
3. use bbswitch instead (see also http://wiki.bumblebee-project.org/Compa … M-methods).See https://wiki.archlinux.org/index.php/Bu … Management (note that the rc.d script mentioned there is obsolete, it should be converted to systemd).
I see...
Actually I first tried bbswitch but it didnt work so I went back too good old acpi_call, maybe a little bit too quickly. I'll give bbswitch another try!
Thanks
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