I was getting these errors all the time. Not sure if there's a real underlying bug here (as noted by dnelub -- this may be something outside of xdiagnose that is very real -- and xdiagnose just seems to create the annoying xdiagnose alerts -- which this fix appears to be for).
I just wanted to disable the irritating popups that kept showing up. Here's a fix that's worked for me on my Lenovo Ideapad U300s (fingers crossed -- 1 day without xdiagnose alerts) and is incredibly simple: 1 - In terminal, type: sudo xdiagnose 2 - uncheck EVERYTHING in the xdiagnose window 3 - restart the computer I also did the following -- and I'm not sure whether it did something in addition to the items above - so I'm disclosing it just to be safe: 1 - In Software Center search for "xdiagnose" 2- Select it when you find it, and click on "More Info" 3 - In Add-ons, uncheck the box next to "Tools for debugging the intel graphics driver (intel-gpu-tools)" 4 - restart the computer. The reason I'm skeptical that the Software Center change did anything is that if I re-open the Software Center after boot, the "Tools for debugging the intel graphics driver (intel-gpu-tools)" is checked once again -- so it looks like it can't actually be disabled. Let me know if it works for you. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xdiagnose in Ubuntu. https://bugs.launchpad.net/bugs/1073626 Title: Constant "false gpu hang" system alerts To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xdiagnose/+bug/1073626/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp