Here is the dmesg output for 201409-15487 (BIOS A07) with cycling through all 4 modes, with "drm.debug=14" added into GRUB_CMDLINE_LINUX_DEFAULT= of /etc/default/grub
** Attachment added: "dmesg-drm-debug-201409-15487.log" https://bugs.launchpad.net/ubuntu/vivid/+source/linux/+bug/1483320/+attachment/4444022/+files/dmesg-latest.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1483320 Title: Migrate Broadwell to use i915_bpo To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
