Hi Pierre, I might be wrong but I think the _DSM call is what actually turns the nvidia card off; the other calls are checks to see if it is off. So as the _DSM call seems to work for you, you might be okay. What happens to the battery usage?
Jos On 5 May 2011 13:41, Pierre Chifflier <[email protected]> wrote: > Hi, > > My laptop is a Dell XPS 17 with nvidia GT555M, and at the moment I have > no success in trying to switch the nvidia card off. > > I am using current Debian unstable/sid (kernel 2.6.38-2-amd64) and > latest acpi_call.ko from the git repository. > > I tried several commands, all of them failed with an AE_NOT_FOUND or > similar. > I also tried the dell702X.sh script from Jos Hickson ( > https://lists.launchpad.net/hybrid-graphics-linux/msg00663.html ) which > fails: > $ sudo ./dellL702X.sh off > _DSM 0x80000001 > _PS3 Error: AE_NOT_FOUND > Dell L702X Optimus appears to be Error: AE_NOT_FOUND > > syslog shows: > May 5 14:36:32 laptop kernel: [16269.939846] acpi_call: Calling > \_SB.PCI0.PEG0.PEGP._DSM > May 5 14:36:32 laptop kernel: [16269.939967] acpi_call: Call > successful: 0x80000001 > May 5 14:36:32 laptop kernel: [16269.942746] acpi_call: Calling > \_SB.PCI0.PEG0.PEGP._PS3 > May 5 14:36:32 laptop kernel: [16269.942768] acpi_call: Cannot get > handle: Error: AE_NOT_FOUND > May 5 14:36:32 laptop kernel: [16269.945422] acpi_call: Calling > \_SB.PCI0.PEG0.PEGP._PSC > May 5 14:36:32 laptop kernel: [16269.945439] acpi_call: Cannot get > handle: Error: AE_NOT_FOUND > > Here are some more details: > # dmidecode -s system-product-name > Dell System XPS L702X > # lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA > 01:00.0 VGA compatible controller [0300]: nVidia Corporation Device > [10de:0dcd] (rev a1) (prog-if 00 [VGA controller]) > > I have attached the DSDT and SSDT files (oddly, there are 3 SSDT files). > > Is there any way to make this card work (or switch it off) ? > > Thanks, > Pierre > > _______________________________________________ > Mailing list: https://launchpad.net/~hybrid-graphics-linux > Post to : [email protected] > Unsubscribe : https://launchpad.net/~hybrid-graphics-linux > More help : https://help.launchpad.net/ListHelp > >
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