Additional info. Possibly irrelevant. Using Firefox I have noticed a screen corruption that seems to occur after some time idle. The same problem occurred on Ubuntu 14.04. It suggests to me that somewhere deep in the graphics driver something is amiss.
To use the Google Chrome browser I have had to un-check 'Use hardware acceleration when available' to prevent the browser from crashing. Attached is the dmesg output from a successful boot of 3.19.0-16-generic which may be helpful. Whether booting successfully or not just before the grub menu the following is reported: ACPI PCC Probe Failed. This is apparently benign. ** Attachment added: "Output of dmesg command" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1453302/+attachment/4394792/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1453302 Title: Linux kernel freeze (it seems in current/3.19.0-17) on Dell Inspiron 1525 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1453302/+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
