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ubuntuにnVidiaドライバを入れたらUnityが起動しない場合の対処

More than 5 years have passed since last update.
  • ubuntu 14.04 LTS x86_64
  • nVidia linux driver 331.79 & 337.25 x86_64

症状

  • lighdm(ログイン画面)はOK
  • ログインするとUnityの背景だけ表示されて,何も操作できない

image from Unity doesn't load, no Launcher, no Dash appears

再現性

あり.以下のいずれでも発生.

  • ubuntu system settingのsoftware & update -> Addtional Drivers で外部ドライバ(nVidia)を入れて再起動する
  • nVidiaドライバ(*.sh)を実行してインストールして再起動する

対処

sudo service lightdm stop
sudo apt-get remove nvidia*
sudo apt-get install --reinstall linux-source linux-headers-generic unity ubuntu-desktop 
sudo apt-get install compizconfig-settings-manager
dconf reset -f /org/compiz/
unity --reset-icons &disown
unity --replace
sudo reboot

でもnVidiaドライバではない.

結果

グラフィックカードを入れ替えたら直った....

sudo apt-get install nvidia-331-updates
sudo reboot

後日談

グラフィックカードを元に戻しても,問題なく動作した.
ただしグラフィックカードを挿すPCIスロットを変更してみた.

おそらく,ハードウェアの問題? グラフィックカードを抜いて挿してみれば,接触不良か何かしら改善したと思われる.

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