did some more testing and found out how to reproduce with some more details:
whenever I have disabled my readeon with echo OFF > /sys/kernel/debug/vgaswitcheroo/switch go to standby (close laptop lid) resume and then (manually) run (after logged in in unity/gnome/whatever) echo ON > /sys/kernel/debug/vgaswitcheroo/switch the delay is there -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/859171 Title: [ATI Radeon] System unresponsive for short time within Lightdm To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/859171/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
