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Thread: Did anyone managed to switch off the discrete graphic card on Asus k53 k53sj ?

  1. #1
    Join Date
    Apr 2011
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    Did anyone managed to switch off the discrete graphic card on Asus k53 k53sj ?

    I tried to to use the ACPI call method ( http://linux-hybrid-graphics.blogspo...tch-onoff.html ) using 'echo '\_SB.PCI0.PEGR.GFX0._OFF' > /proc/acpi/call'.

    As it has been reported, this works in switching off the graphic card but 10 seconds later the laptop fan starts spinning at full speed.

    Also I'm not savvy enough to get 'asus switcheroo' to work...

    Some fellow proprietary help, please

  2. #2
    Join Date
    Apr 2011
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    6

    Re: Did anyone managed to switch off the discrete graphic card on Asus k53 k53sj ?

    Ok. Based on this https://lists.launchpad.net/hybrid-g.../msg01535.html the following acpi calls seem to turn of the discrete graphic card:

    echo '\_SB.PCI0.LPCB.EC0.TSDS' > /proc/acpi/call
    echo '\_SB.PCI0.PEGR.GFX0.DOFF' > /proc/acpi/call

    BUT I'M NO EXPERT!
    Power went down form 1800mA to 1200mA
    Temperature went down from 54º to 47º
    Fan is working at normal speed
    Last edited by JorgeABC; June 26th, 2011 at 01:18 AM.

  3. #3
    Join Date
    Aug 2011
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    1

    Smile Re: Did anyone managed to switch off the discrete graphic card on Asus k53 k53sj ?

    #With Comands

    #Turn OFF GPU
    echo '\_SB.PCI0.PEGR.GFX0._OFF' > /proc/acpi/call

    #and

    #Turn ON GPU
    echo '\_SB.PCI0.PEGR.GFX0._ON' > /proc/acpi/call


    # Tested in my computer is a K53SJ with Nvidia-Intel Hybrid Grapics

    lspci -v -nk | grep -v Capabilities | grep -v Memory | more
    #Results

    01:00.0 0300: 10de:1050 (rev a1) (prog-if 00 [VGA controller])
    Subsystem: 1043:1682
    Kernel driver in use: nvidia

    00:02.0 0300: 8086:0116 (rev 09) (prog-if 00 [VGA controller])
    Subsystem: 1043:1682
    Kernel driver in use: i915

    Note:* Require loaded module acpi_call

  4. #4
    Join Date
    Apr 2011
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    6

    Re: Did anyone managed to switch off the discrete graphic card on Asus k53 k53sj ?

    Just updated to ubuntu oneiric and this methods stoped working. Anyone has a clue why?

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