i have this issue on a freshly installed trusty (kubuntu) & asus x550lb notebook, nvidia geforce gt 740m (using proprietary driver) , with an elantech touchpad. additionally, when the problem occurs, the following message is logged to the syslog:
acpid: client 11187[0:0] has disconnected switching to character mode and back after waiting a few seconds makes the problem disappear and the i see in the syslog the following: acpid: client connected from 11187[0:0] acpid: 1 client rule loaded i reported the bug as https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1313902 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1184451 Title: Ubuntu 13.10 random screen freeze while Normal OS activites To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1184451/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
