Thank you for reporting this bug and helping make ubuntu better. This sounds like a GPU freeze and there is more information about this kind of bug here: https://wiki.ubuntu.com/X/Troubleshooting/Freeze . There are instructions there for how to get a batchbuffer dump which we need.
Thank you for reporting this bug and helping make ubuntu better. This sounds like a GPU freeze and there is more information about this kind of bug here: https:/ /wiki.ubuntu. com/X/Troublesh ooting/ Freeze . There are instructions there for how to get a batchbuffer dump which we need.