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Thread: Ubuntu and the asus zenbook (UX31)

  1. #341
    Join Date
    Apr 2007
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    24

    Re: Ubunutu and the asus zenbook (UX31)

    Quote Originally Posted by GodzillaMonster View Post
    Hope we can get to the bottom of this shutdown soon.

    This is unrelated but, with your kernel, Aaron has shown only "pcie_aspm=force quiet splash" has any effect.

    Yeah, I saw that after I posted. I've now been up 4:31 since removing the rest of the kernel params. Not sure if that is having a positive effect or whether I've just hit a lucky spell.

    BTW, has anybody figured out how to get left/right click buttons working on the elantech touchpad under 3.2?

  2. #342
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    Apr 2007
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    Re: Ubunutu and the asus zenbook (UX31)

    got a good 7 hours out of it, but it just crashed with my previous setup, but only using the recommended kernel options.

  3. #343
    Join Date
    Oct 2007
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    14

    Re: Ubunutu and the asus zenbook (UX31)

    Quote Originally Posted by GodzillaMonster View Post
    Hi Kim,

    It is possible that is has locked up post suspend. You should be able to force it to fully power down by holding the power button for 5 or more seconds, I think. I haven't tried this myself but such behaviour is common.
    Thanks, after some days it started up again and I started to shutdown it down each time, but not it won't start again, so now it is going for service...

    Kim

  4. #344
    Join Date
    Dec 2011
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    15

    Re: Ubunutu and the asus zenbook (UX31)

    If anyone interested I found a way to make WiFi fast:

    Code:
    echo "options ath9k nohwcrypt=1" >> /etc/modprobe.d/ath9k.conf

  5. #345
    Join Date
    Jan 2009
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    32

    Re: Ubunutu and the asus zenbook (UX31)

    Quote Originally Posted by aspettl View Post
    I just want to summarize the kernel options with this post, I tried to get an overview myself.

    pcie_aspm=force
    ASPM is not enabled by default, at least not yet. As far as I know this is ongoing work.
    See also: http://www.phoronix.com/scan.php?pag...solution&num=1

    i915.modeset=1
    Is enabled by default, therefore unnecessary. It was only required for older 3.2-rc kernels (rc5 and below, because of a regression which is now fixed).

    i915.i915_enable_rc6=1
    Is enabled by default in the 3.2 kernels if VTd is disabled, but not in 3.1. Significant power usage improvements. Causes problems with VTd enabled.
    See also: http://intellinuxgraphics.org/2011Q4.html

    i915.semaphores=1
    Enabled by default in the 3.2 kernels (only if VTd is disabled). Not enabled in 3.1, causes problems together with VTd, see http://intellinuxgraphics.org/2011Q4.html.

    i915.i915_enable_fbc=1
    Is enabled by default since kernel 3.1, according to http://intellinuxgraphics.org/2011Q4.html.

    i915.lvds_downclock=1
    Based on the quote above posted by nomego and the output of "xrandr", the Zenbook uses eDP (Embedded Display Port) instead of LVDS. So this option has no effect.

    intel_iommu=off
    Alternative to disabling VTd in the BIOS.

    acpi_oci="Linux"
    Only a cosmetical fix, because a line in dmesg (?) recommended it, but no positive or negative effect known.

    So, the recommendation should probably be:
    - use kernel 3.2-rc6
    - disable VTd in the BIOS
    - use the kernel option "pcie_aspm=force"

    The alternative:
    - use kernel 3.1
    - disable VTd in the BIOS
    - use the kernel option "pcie_aspm=force i915.i915_enable_rc6=1 i915.semaphores=1"
    (The Elantech touchpad mouse buttons work under 3.1, that's one reason for the older kernel - and I think the only one.)

    Regards
    Aaron

    Edit:
    See also this blog post: http://dodonov.net/blog/2011/12/20/h...graphics-land/

    What battery life are you seeing with these options configured above?
    Also which 3.1 kernel? i am using 3.1.0-030100-generic...

    ironmantis7x

  6. #346
    Join Date
    Apr 2007
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    Germany
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    39
    Distro
    Ubuntu 7.04 Feisty Fawn

    Re: Ubunutu and the asus zenbook (UX31)

    Quote Originally Posted by ironmantis7x View Post
    What battery life are you seeing with these options configured above?
    Also which 3.1 kernel? i am using 3.1.0-030100-generic...

    ironmantis7x
    I did some tests regarding power usage in idle mode, see http://ubuntuforums.org/showpost.php...&postcount=331. This was with 3.2-rc6 - but with ASPM, RC6 and semaphores, the power usage with 3.1.3 was the same, that is, the minimum was 4.6 W.

    Because the battery has a capacity of 48 Wh, a mean power usage of e.g. 8W would correspond to 6 hours of battery lifetime. But I haven't done any tests to determine which workload / display brigtness etc. causes which (average) power usage.

    Regards
    Aaron

  7. #347
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    Dec 2011
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    Thumbs down Re: Ubunutu and the asus zenbook (UX31)

    I have large power usage from this two devices. Is it normal? Does anyone get the same?

    Code:
      1.29 W    100,0%                      Device         Audio codec hwC0D0: Realtek
      1.25 W    100,0%                      Device         Radio device: ath9k
    I am using 3.2-rc6 kernel with pcie_aspm=force. I never get less then 5.8 W in powertop.

  8. #348
    Join Date
    Dec 2011
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    6

    Re: Ubunutu and the asus zenbook (UX31)

    First, thanks everybody for all the contributions ! It was very helpful to get my UX31 running nicely.

    I wanted to give you back a little bit, so for those of you who make use of the USB Ethernet adapter, you will be pleased to learn that Linus git tree now has native support for it, thanks to a very simple patch of mine : http://git.kernel.org/?p=linux/kerne...1a189a958a2bdd

    Keep on sharing.
    Aurel

  9. #349
    Join Date
    May 2006
    Location
    Vienna/Austria
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    Hidden!
    Distro
    Kubuntu 10.10 Maverick Meerkat

    Re: Ubunutu and the asus zenbook (UX31)

    on the elantech front i found this post from mrmylanman in the archlinux forum saying he found a solution.
    https://bbs.archlinux.org/viewtopic....31755#p1031755

    he describes that the two handler for the touchpad /dev/input/mouse and /dev/input/event7 somehow interfere. but i can't reproduce his efforts on kubuntu 11.10 with the onceric RC6 kernel from kernel ppa.

    for my elantech equipped znbook these handlers are

    [ 7702.634] (II) config/udev: Adding input device ETPS/2 Elantech Touchpad (/dev/input/mouse1)
    [ 7702.636] (II) config/udev: Adding input device ETPS/2 Elantech Touchpad (/dev/input/event7

  10. #350
    Join Date
    Dec 2011
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    16

    Re: Ubunutu and the asus zenbook (UX31)

    Merry Christmas to you all, new rc7 build as a Christmas gift from Ubuntu:

    http://kernel.ubuntu.com/~kernel-ppa...2-rc7-precise/

    I will try that one and leave my own build which has now been running 7 days and 8 hours. I think that is stable. If the rc7 build still is unstable I have to start looking at the config ...

    /Z

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