radeon freeze

[TheKey84]

Since installing Kubuntu 16.04 a freeze bug keeps appearing on my system. It appears only in rare occassions and I don't know a way to trigger it on purpose.

I activated kernel crash dumps according to https://help.ubuntu.com/lts/serverguide/kernel-crash-dump.html, but that didn't work as expected (no crashdump was saved). But after activating that mechanism I was able to ssh into the system the last time it happend and I was able to dump the output of dmesg into a file.

It seems to be related to the radeon driver. This bug is extremely annoying as it freezes the system immediately without prior notice. And I had to push the reset button, REISUB didn't work.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1590869

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[TheKey84 (srkey84-launchpad)]

apport-collect does not work:

simon@simon-desktop:~$ apport-collect 1590869
dpkg-query: Kein Paket gefunden, das auf linux passt
Traceback (most recent call last):
  File "/usr/share/apport/apport-kde", line 530, in <module>
    sys.exit(UserInterface.run_argv())
  File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 653, in run_argv
    return self.run_update_report()
  File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 569, in run_update_report
    response = self.ui_present_report_details(allowed_to_report)
  File "/usr/share/apport/apport-kde", line 367, in ui_present_report_details
    desktop_info)
  File "/usr/share/apport/apport-kde", line 184, in __init__
    self.ui.ui_update_view(self)
  File "/usr/share/apport/apport-kde", line 358, in ui_update_view
    QTreeWidgetItem(keyitem, [str(line)])
UnicodeEncodeError: 'ascii' codec can't encode character u'\u0409' in position 33: ordinal not in range(128)
Segmentation fault (core dumped)

[penalvch (penalvch)]

TheKey84, thank you for reporting this and helping make Ubuntu better.

1) To see if this is already resolved, could you please test http://cdimage.ubuntu.com/daily-live/current/ and advise to the results?
2) Could you please perform the apport-collect in the live environment from above?
3) To clarify, did this problem not occur in a Ubuntu release prior to 16.04?

[TheKey84 (srkey84-launchpad)]

The Problem seems to be gone, it didn't happen for weeks now.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]