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Downgrade BIOS on Lenovo T440p from 2.22 to 1.14 resolved mine problems. BIOS update utility : http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS037575 I've ran file 'gluj04us.exe' (1.14 BIOS) from Windows 7, then Laptop restarted 3 times (flash operations). After 4th reboot laptop I've reinstalled Ubuntu 14.04 and every hardware stuff ...


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You could try the aforementioned kernel patch from airlied. z06kris on the 01.org forum posted a how-to for Ubuntu 14.04, which works for me.


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You may have a Steam shortcut on your desktop. If so, you can right click on that shortcut, select Properties, and modify the command to include primusrun. You should insert it just before the wine command, with a space to either side of primusrun


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Here is a variant of the above, and a solution - for THIS case, possibly helping in the other cases too. SIDENOTE 1: if you do not run nvidia-settings with gksudo ... THE FIRST TIME (and do not have "$HOME/.config/ibus/" at that time) you will end up seeing: IBUS-WARNING **: The owner of /home/$USER/.config/ibus/bus is not root! Then refer back to ...


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clean installing Ubuntu trusty, installing all the updates, then installing bumblebee seems to have solved the problem nvidia-prime must have been causing the x not starting issues, and now bumblebee isworking, so i can use my nvidia and still have my hotkeys.


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If you encounter the problem with prime like an empty popup error in nvidia-settings panel you can see the bug in Launch Pad 1310023. I have encounter a similar problem and I can correct them with that: sudo update-alternatives --config x86_64-linux-gnu_gl_conf sudo ldconfig -n sudo update-initramfs -u then reboot and see if it works


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I have bought the same laptop ( Asus Zenbok ux302LG with nvidia secondary board). It has been a nightmare but finally I have the nvidia board working under Ubuntu, while still keeping Windows alive in a dual boot mode. This is what I did: 1 Enable BIOS->CSM (comptability module) In Windows, shrink any partition you prefer and make free space and/or ...


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Switch back to running the NVidia card with Nouveau or the Intel integrated card with Intel drivers, for as you state when you do so "the Microphone mute, ThinkVantage key, and brightness all work fine."


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There are two things that you need to do. Try fixing your software packing system. Then test the various drivers that are provided by default in the repository. Try using the procedure described here to fix the integrity of your packaging: I can't edit, update, remove or install my broken packages Perform the loop of: $ sudo apt-get autoremove $ ...


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Not to be snide or superior, but I find that archlinux works very well with wine and the nvidia packages. Granted, I don't have an optimus capable GPU, so results may vary.


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AmanicA might works in some cases, but not every time. Fails with nvidia-340 on Utopic for example. The real issue is with the ocl-icd design policy to be fixed https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/1328542 so add your 'affect me too' to get more devs attention


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Im using Lenovo Ideapad S410p with Nvidia GT 720M with Ubuntu 14.04 64bits after the same problem and expend many days trying to fix all and I try all since xorg-edgers install nvidia drivers and a lot of etc...., I can fix the problem making a new clean installation, so for me some config files, installations and residual info was wrong with my previous ...



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