Hello everybody, I owns a XPS L501X. Upfront: Linux and Graphics Adaptors are unknown to me, so what I write next might be useless. I cannot judge it.
machine: XPS L501X sysversion: A04 from lspci I got: lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA 00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 18) (prog-if 00 [VGA controller]) 02:00.0 VGA compatible controller [0300]: nVidia Corporation Device [10de:0df1] (rev a1) (prog-if 00 [VGA controller]) trying with the 'test_off' i got no positive results. However I fetch a copy of acpi_call from https://github.com/peberlein/acpi_call and running the "m11xr2.sh" script throw some positive results. then, a new lspci: lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA 00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 18) (prog-if 00 [VGA controller]) 02:00.0 VGA compatible controller [0300]: nVidia Corporation Device [10de:0df1] (rev ff) (prog-if ff) Note how the nVidia line changed. It is not longer labeled as 'VGA controller' so I suppose it is off. On the same way, the 'present rate' of battery consumption (cat /proc/acpi/battery/BAT0/stat) dropped from 2500mW to 2000mW. Finally I follow the steps on [#3 Disable the nvidia gaphics card to increase battery life] adapted to my card http://robbyx.net/blog/?p=190 so that it is switched off on each system logon. I attach the nvdown that worked for me (the one in the article is for Asus Laptop). Sincerelly I dont know If I really switched off the nVidia card or it is just an illusion. Hope anybody can help me to confirm that -J-
nvdown
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