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UbuntuのChromeでスクロール時にちらつきが出る問題のFix

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Chromeに限らずブラウザでスクロールしたり、動画を見るとちらつく問題

Thinkpad X1 Carbon 2017にUbuntu MATE 17.04を入れて悩まされた問題。
英語では情報があったけれど、日本語のものが見つからなかった。

原因はIntel GPUを使っている場合の問題らしい。

対処法

Rootとして/usr/share/X11/xorg.conf.d/20-intel.confを以下の内容で作成する。
sudo nano /usr/share/X11/xorg.conf.d/20-intel.conf

/usr/share/X11/xorg.conf.d/20-intel.conf
Section "Device"
    Identifier "Intel Graphics"
    Driver "intel"
    Option "AccelMethod" "sna"
    Option "TearFree" "true"
    Option "DRI" "3"
EndSection

参考

https://askubuntu.com/questions/752743/ubuntu-16-04-skylake-6th-generation-screen-flickering
一番上のbasicdaysさんの回答がわかりやすい。Skylakeとなっているが、Kabylakeでも問題は発生した。

ちなみにUbuntu MATEだと、なんの設定もせずにThinkpad X1 Carbonのタッチパッド、トラックポイント、カメラ、Bluetooth、その他諸々動くのでおすすめ。
でも指紋認証はだめです。

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