If possible, can you test those two kernels? That way we know we are starting the bisect at the right point. The kernels can be downloaded from:
v4.1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.1-wily/ v4.2-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.2-rc1-unstable/ -- 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs