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  1. [SOLVED] Re: Very unstable wifi connection after upgrade to 12.04 (Intel Ultimate-N 6300)

    You can write the option to whatever file you like inside /etc/modprobe.d/. The whole directory is sourced by modprobe. I for example added a file /etc/modprobe.d/thinkpad.conf with (among others)...
  2. [SOLVED] Re: Very unstable wifi connection after upgrade to 12.04 (Intel Ultimate-N 6300)

    After two days with the new module parameter, no wifi connection problems any longer. Marking the problem as solved.
  3. [SOLVED] Re: Very unstable wifi connection after upgrade to 12.04 (Intel Ultimate-N 6300)

    Sure, will do this. But first, I'll wait a few more days and see whether the wifi issues really disappeared. Thanks again for your help.
  4. [SOLVED] Re: Very unstable wifi connection after upgrade to 12.04 (Intel Ultimate-N 6300)

    Thanks for the hint. It seems to do the rick.

    I guess that you're refering to a issue with iwlwifi in kernel 3.2 discussed here: https://bugzilla.redhat.com/show_bug.cgi?id=785239

    I added the...
  5. [SOLVED] Very unstable wifi connection after upgrade to 12.04 (Intel Ultimate-N 6300)

    Hello,

    after dist-upgrade from 11.10 to 12.04 (64bit), my wifi connection got very unstable, and keeps bugging me. Until the dist-upgrade, everything worked fine. My hardware is a ThinkPad T420...
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    [ubuntu] Re: Ubuntu 11.04 on a Thinkpad T420

    The changes to /etc/default/grub look correct. did you run 'sudo update-grub' afterwards? You can verify that the changes reached grub.conf by looking into /boot/grub/grub.conf. You should find the...
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    [ubuntu] Re: Ubuntu 11.04 on a Thinkpad T420

    I discover issues with shutting down Ubuntu Oneiric on my T420 lately. Most of the times, the laptop is not halted and powered off, but instead reboots. Does anybody discover similar issues?
  8. [ubuntu] Re: Thinkpad T420, Ubuntu 11.04 Fan running all the Time

    See the following post for a step-by-step tutorial:
    http://ubuntuforums.org/showpost.php?p=11277718&postcount=17

    all lines starting with $ are commands to be executed in a terminal. you mustn't...
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    [ubuntu] Re: 64bit Natty and Intel Sandy Bridge (ThinkPad T420)

    coretemp is compiled as module in default Ubuntu kernel. All you need to do is following the step-by-step tutorial I linked. See 'modinfo coretemp' for more information.
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    [ubuntu] Re: 64bit Natty and Intel Sandy Bridge (ThinkPad T420)

    Yes, I upgraded from 11.04 to 11.10. Upgrading from one Ubuntu release to the next one is officially supported by Ubuntu and shouldn't cause major trouble.
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    [ubuntu] Re: 64bit Natty and Intel Sandy Bridge (ThinkPad T420)

    I neither have issues with my trackpad, nor with my hotkeys. They all work as expected.
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    [all variants] Re: ThinkPad T420 11.10 issue tracking

    Here's another issue tracking post, which I try to keep up to date:

    http://ubuntuforums.org/showthread.php?p=11353524#post11353524
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    [ubuntu] Re: 64bit Natty and Intel Sandy Bridge (ThinkPad T420)

    [/I]Great, thanks a lot for the hint. Indeed it works like a charm for me on T420.


    See e.g. http://ubuntuforums.org/showpost.php?p=10866947&postcount=9 there I described how to get thinkfan...
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    [ubuntu] Re: 64bit Natty and Intel Sandy Bridge (ThinkPad T420)

    Weird, mine work just fine...
    [/QUOTE]

    You're sure that your _microphone_ mute key works? It really mutes the microphone? Or are you talking about your audio output mute key?
  15. [ubuntu] Re: Thinkpad T420, Ubuntu 11.04 Fan running all the Time

    The path to temperature sensors changed with new Oneiric (11.10) kernel. See this post, especially the following subitem:



    In other words, I needed to change the sensors in /etc/thinkfan.conf...
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    [ubuntu] Re: Natty and ThinkPad docking station (T420)

    Just did: http://ubuntuforums.org/showthread.php?p=11353524#post11353524
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    [ubuntu] Re: 64bit Natty and Intel Sandy Bridge (ThinkPad T420)

    Now that I upgraded to Ubuntu 11.10 Oneiric Ocelot, I'll share my experiences again. First I have to say that all in all the upgrade went pretty smoothly. Below is a summary of the issues that one...
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    [ubuntu] Re: Natty and ThinkPad docking station (T420)

    I'll give Ubuntu 11.10 a try as soon as it's released. For sure I'll share my experiences regarding issues with T420 in this forum.
  19. [ubuntu] Re: Thinkpad T420, Ubuntu 11.04 Fan running all the Time

    yes speed of 2348 is not level 0. I guess that it was still spinning and level was just decreased. you should keep an eye on the level and speed of the fan. in case it changes frequently, and you see...
  20. [ubuntu] Re: Thinkpad T420, Ubuntu 11.04 Fan running all the Time

    level 0 means that the fan is not running at all. are you sure that it's the fan that makes the noise?



    Yes, that's correct. It's exactly the same as in my /etc/thinkfan.conf. Which Thinkpad do...
  21. [ubuntu] Re: Thinkpad T420, Ubuntu 11.04 Fan running all the Time

    It seems like you added the line 'options thinkpad_acpi fan_control=1' to /etc/thinkfan.conf instead of /etc/modprobe.d/thinkfan.conf. Both files have different meanings. /etc/thinkfan.conf is the...
  22. [ubuntu] Re: Thinkpad T420, Ubuntu 11.04 Fan running all the Time

    Yes, the command was wrong. Sudo executes a command with superuser privileges. The command above executed 'echo' with superuser privileges, but the redirection (>>) to file...
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    [ubuntu] Re: 64bit Natty and Intel Sandy Bridge (ThinkPad T420)

    I added a new thread about the T420 with docking station here: http://ubuntuforums.org/showthread.php?p=11313961
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    [ubuntu] Re: Natty and ThinkPad docking station (T420)

    Interestingly the power button feature works when the laptop is docked while it doesn't work in normal laptop mode.

    Ubuntu usually displays a dialog to choose between different actions (shutdown,...
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    [ubuntu] Re: Grub2 video mode switch (i915 video)

    Thanks for your reply. Up to now, I didn't use this parameter. Now I added it to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub, ran update-grub and rebooted. Unfortunately it doesn't help anything....
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