At the risk of conflating yet another unrelated bug into this thread of apparently non-related bug reports, I wanted to share my experience and a workaround in case others have the same problem. See my contributions on this bug thread...
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/908335 ..and take a look at your USB devices/hubs. It sounds ridiculous but the conclusion I have reached is that for certain hardware configurations, kernels >= 3.x will hard hang if USB devices are plugged into certain USB ports/controllers. I had a complete hang problem with any kernel > 3.x on my Dell laptop that only manifested itself when docked. I wanted to move from Ubuntu 10.10 and every upstream release/kernel I tried would hang my Dell laptop WHEN DOCKED within ~5 minutes but would work perfectly when UN- DOCKED. I ASSUMED (I know!) that this was graphics related due to the fact a) every hang problem appears to be blamed on graphics/x and b) I used dual monitors only when docked. But after some pointers from some excellent chaps from Canonical I tried to run docked but with the USB devices removed from my docking station ports. No problems. I ASSUMED (I know!) that this was down to a specific USB device but then I plugged the USB devices (keyboard/mouse/web cam) into the laptop USB connectors instead of the docking station's and again no problem. I've been running 12.04 with zero problems for a few weeks now and it's fantastic. If I plug any USB device into my Dell PR02X docking station using a > 3.x kernel it will hang. Hope that this might help someone on this thread. And now the venting...I've come to the conclusion that reporting and management of bugs in Ubuntu is chaos. Perhaps that's just the open source world that I'm relatively new to? Perhaps it works and perhaps it's the only way that a relatively small team of fixers can deal with the demands on their time. But I have to ask how a bug thread like this can come into existence such that >250 posts about critical errors that may or may not be related to each other can simply be marked as won't fix? I understand why this thread is marked won't fix NOW. It contains a random collection of reports that each only have "12.04" and "completely freezes frequently" in common. But what lack of control and what sort of opaque process leads us users to latching on to a thread that 'appears' to the layman to describe the same problem we are having, only for some months down the line to be told that we reported the bugs in the wrong way? I REALLY appreciate the community effort that went into providing me with 'free' software and it would be churlish to attack the community behind it - as some have on here. But Canonical has commercial ambitions and wants to reach a wider audience and in the commercial world, this process is not good enough. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/993187 Title: ubuntu 12.04 completely freezes frequently. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/993187/+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
