i have an acer aspire ES1-711 and have this problem as well. kernel boot parameters are cat /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-4.3.0 root=/dev/sda6 ro drm.debug=0xe i915.enable_rc6=0 i915.semaphores=1
it happens absolutely sporadically, it can be running 30h without crashing or it can happen within hours. it seems like setting kernel parameters for i915 doesn't change anything, i tried all of them. no logs, no crashdumps. just a complete freeze without any option to do anything. i have tried all kind of kernels, only 3.x a few and 4.x series a lot of them, now i am running 4.3.0 since a few hours. my operating system is gentoo linux. i also have another partition with linux mint rafaela (ubuntu 14.04 based i believe) there the freeze doesn't occur. i have also tried disabling cpu-frequency scaling in the kernel completely, have tried playing around with intel_pstate, but that does not seem to be the problem as well. now i will enable all the panic flags like described in the crashdumprecipe and hope to get any trace generated -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1509723 Title: [Acer Aspire ES1-311] Ubuntu freezes occasionally To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1509723/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
