lenovo e431
原來 bios 中 display card 有得選:
內建和 switchable,
要選 switchable
然後 follow http://www.unixmen.com/how-to-make-nvidia-optimus-technology-work-properly-on-debian/
但是 run oprirun glsgear 的 framerate 跟 primerun 的結果一樣,都是 60fps
結果因為是 LCD panel, framerate 是固定的,..
所以看起來是有安裝成功
看來 bumbleblee 和 nvidia driver 是兩件事。
安裝了 nvidia-driver, run nvidis-settings 之後,產生了 /etc/X11/xorg.conf
結果 reboot 後, startx failed, 看 log, 說是 module: nvidia 找不到。
最後,刪除 /etc/X11/xorg.conf 後, startx OK
ubuntu 在 R40e 上 還有 Debian 在 Sempron 2600 上
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