It appears that the same bug is reported at the following links: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/206008 https://bugs.launchpad.net/ubuntu/+bug/207457
It appears that the same bug is reported at the following links: /bugs.launchpad .net/ubuntu/ +source/ xorg/+bug/ 206008 /bugs.launchpad .net/ubuntu/ +bug/207457
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