Hi Timo, this issue could be reproduced on 4.2-rc6, but one interesting thing is that I can't use the hot key to switch the external monitor off, but I can do it manually in the system settings.
Attachment is the dmesg output on 4.2-rc6 ** Attachment added: "failed-4.2-vga.log" https://bugs.launchpad.net/ubuntu/vivid/+source/linux/+bug/1483320/+attachment/4443807/+files/failed-4.2-vga.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1483320 Title: Migrate Broadwell to use i915_bpo Status in linux package in Ubuntu: Invalid Status in linux source package in Vivid: In Progress Bug description: There are several bugs affecting Broadwell generation graphics in the vivid kernel (3.19), but not found in 4.2rc which i915_bpo module is based on. In order to support our OEM partners (and other BDW users) it would make sense to migrate BDW to use i915_bpo instead. The known (public) bugs this would fix are: - screen is black after xrandr rotate command https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1446979 - changing the VT causes flicker https://bugs.freedesktop.org/show_bug.cgi?id=85583 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1450557 - GPU hangs on resume https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1468232 (and dupes, which I believe there are several of) - and some OEM machines can't always hotplug the HDMI output (no public bug AIUI) the migration should not be too risky, since i915_bpo is already used for Braswell which is same generation as (=based on) BDW. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1483320/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
