Hello Alberto, Anthony, Unlike 3.5 kernels, the situation is quite different while using the 3.8 raring kernel,
Steps (with 3.8 kernel installed): 1. Boot to desktop. 2. Suspend from the system menu. 3. Press the power button to wake it up. Actual result: 1. The unlock screen appears, but the system is extremely slow. I was unable to unlock it. 2. Display switched to console mode and the following error messages pops-out [ PFB][0000:05:00.0] trapped read at 0x002001a020 on channel 0x0001fb34 SEMAPHORE_BG/PFIFO_READ/00 reason: PAGE_NOT_PRESENT [ 1296] failed to idel channel 0xcccc0000 3. After a few seconds, system switched back to the login screen, if you attempt to login, it repeats itself from 2. ** Attachment added: "Xorg.0.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1182296/+attachment/3768833/+files/Xorg.0.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1182296 Title: [Dell Precision T7600] System fails to resume from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1182296/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs