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    [ubuntu] Re: Ubuntu and the asus zenbook (UX31)

    Kernel 3.5 is the one working best for me as well, are you installing the ones from kernel.ubuntu.com/~kernel-ppa/mainline/ ?

    3.5.0-rc7 has a known suspend/resume issue, but rc6 and 3.5 final...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    Here's an alternate update kernel script that will figure out the latest version for current running kernel (3.1, 3.2) or the following (3.2, 3.3) for oneiric or precise on itself and download and...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    Have run the Ubuntu 3.2rc6 without any kernel parameters and VT-d off in BIOS, but just now experienced a crash again.
    It has been on for about three days, mostly in suspend-mode.

    Going for the...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    Additional information regarding our kernel parameter tweaks:



    So I guess we're left with disabling VT-d in BIOS and playing with pcie_aspm=force or not.

    I'm going to try 3.2-rc6 with VT-d...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    Regarding RC6 and stability, this is what I've gotten from Keith P:



    I'm not sure how to verify that RC6 gets turned on if you boot without it, /sys/module/i915/parameters/i915_enable_rc6 will...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    Zapiens: Great work finding that commit. I can confirm that the kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2-rc6-precise/ works - maybe we don't need to compile from git any more :)
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    ironmantis7x: Those parameters can be used with 3.1 as well. I'm not sure if any significant power saving features have gone into 3.2. Please try booting with those parameters as well as the power...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    thcourbon: I'm in discussions with Keith P who actually have ordered a Zenbook for himself to take a look at that regression and an RC6 fix.
    I've tried his first patch but it didn't fix it...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    Zapiens: I get around 6W at its lowest when booting with:


    i915.i915_enable_rc6=1 i915.semaphores=1 i915.i915_enable_fbc=1 i915.lvds_downclock=1

    However, when I add



    i915.modeset=1...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    iron4o: Thank you. I've updated with comments about kernels newer than 3.1 and the suspend script.
    Also, to get an insight into cpufrequtils, read the /etc/init.d/cpufrequtils script. You'll see...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    Galdrapiu: Great work!

    SoAGr: Hmm that's interesting, is it the UX31E or UX21E ? 32 or 64 bit ? Can you reproduce this with rc4 from the same place ?
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    ironmantis7x: If you always want to have powersave governor, regardless of being on AC or battery, you can just do this:



    echo 'GOVERNOR="powersave"' | sudo tee /etc/default/cpufrequtils

    ...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    shakabra: Did you try modifying the script to only unbind ehci_hcd?
    I have no need for SUSPEND_MODULES or mentioning xhci_hcd in the suspend script..

    Are you noticing any drawbacks with FBC or...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    Zapiens: So I take it you have an Elantech touchpad?
    I have a Sentelic touchpad and even though I never get multi touch, I do feel that clicking with the buttons might take a few times before a...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    iron4o: So you get down to that level without RC6 at all? No custom kernel boot parameters?
    Also, you could just create the file /etc/default/cpufrequtils with the line GOVERNOR="powersave" to let...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    Suor: What's unstable/laggy about 11.10? 32 or 64 bit? Any custom kernels and/or parameters?

    Galdrapiu: To figure out how X interprets the different buttons, you can run the command "xev" which...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    Oblong_Cheese: Oh yeah, you're right. I always thought it was a DP->VGA adapter. Also since xrandr reports that DP1 is disconnected, but it also reports VGA1 to be disconnected..
    Posting to LKML is...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    dbodner: There are Ubuntu-compiled kernels at http://kernel.ubuntu.com/~kernel-ppa/mainline/, however, you will have to boot with i915.modeset=0 with those kernel and thus not get hardware...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    It would be interesting to know what might change with that option, but I think I might rather continue without letting the BIOS know I run Linux :)

    I'm going to do some more experimenting with...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    GodzillaMonster: My preliminary tests show that I don't need any X workarounds either. I guess SUSPEND_MODULES would be able to replace the sleep-script then, except for disabling the touchpad?...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    GodzillaMonster: Were you the one figuring out the suspend/resume fix?

    I'm trying to post threads on all kernel-related issues on LKML, this is the current status:

    1. Modeset issue with 3.2....
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    hatsch: Actually GodzillaMonster was the one figuring out the BIOS-upgrade within BIOS.

    darfe: No difference without the fbc/lvds_downclock options?
    Are you able to keep any kernel logs from any...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    That's promising news, if the only drawback is less performance in virtualization, I'll happily do the trade-off.

    I'll test this during the weekend!
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    Richy: Ok, and you are using the Unity interface? Have you been connecting external displays or does it happen anyway?

    I haven't looked into the wireless any - I haven't had any connectivity...
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    [ubuntu] Re: Ubunutu and the asus zenbook (UX31)

    Oblong_Cheese: So it doesn't work without the script either? I don't have a USB3-device to test, sorry.


    As a status update, I've compiled a new 3.2 kernel from Linus' master tree with the...
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