Thank you for reporting this bug and helping to make ubuntu better in the future. It sounds like you have a typical GPU freeze. Take a look at https://wiki.ubuntu.com/X/Troubleshooting/Freeze for more information about this and how to get a batchbuffer dump which we will need to take this any further.
Thank you for reporting this bug and helping to make ubuntu better in the future. It sounds like you have a typical GPU freeze. Take a look at https:/ /wiki.ubuntu. com/X/Troublesh ooting/ Freeze for more information about this and how to get a batchbuffer dump which we will need to take this any further.