Perhaps it is helpful to report my experiences to this topic. My Hardware: Acer Travelmate B115 with Pentium N3540, Kingston SSD SV300S37A240G. One month ago I updated the system from 14.04 to 16.04. I got two problems. The first was a non working Broadcom WLAN. But this was the simple solution: The STA driver failed to load, if secure boot was activated in bios. The second problem was this terrible freezing after short uptime. I found only the solution with the kernel parameter „intel_idle.max_cstate=1". This option worked, but the battery lifetime decreased appreciably. Now I read the last entries in this thread, so I decided to make some experiments. I updated the firmware of the SSD drive with the tool from Kingston by using Windows. Unfortunately I didn't note the old version of the firmware. Afterward I removed the cstate boot option. I also not forgot to call update_grub. But - since I‘ve done this, I saw no freeze anymore.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1575467 Title: [Dell Inspiron 3451] WARNING: CPU: 1 PID: 1297 at /build/linux-lts- utopic-vy2yyy/linux-lts- utopic-3.16.0/drivers/gpu/drm/i915/intel_display.c:1743 vlv_wait_port_ready+0x126/0x170 [i915]() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1575467/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
