I have a touchsmart tx2. So far most of the hardware issues are solved with it. Now I gave karmic beta a try via upgrade-manager and I must admit its very promising.
One issue I now have is suspend which worked fine in jaunty. Now in karmic having suspend state via g-p-m (lid / suspend button in menu) works. But on resume it suspends a second time.
Only after second resuming everything is working. I am wondering what causes this second suspend. A suspend via sudo pm-suspend resumes correctly on the first sight. Not found any existing bugs in launchpad. Any hints?