Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I installed Ubuntu dual-booting alongside Windows XP. After completing the install and rebooting, the machine froze, with this error message:

GPU lockup- switching to software fbcon
Failed to idle channel 1, 2, 3
PGraph TLB flush idle timeout fail

The graphics on the screen then went random and pixelated.

share|improve this question

closed as off topic by Jorge Castro, LnxSlck, Andrea Corbellini, hhlp, bodhi.zazen Feb 8 '13 at 17:54

Questions on Ask Ubuntu are expected to relate to Ubuntu within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

Browse other questions tagged or ask your own question.
{"cc_re__cc_re__cc_by_sa_3_0": ["                  <li><a href=\"//area51.stackexchange.com\" title=\"proposing new sites in the Stack Exchange network\">Area 51</a></li>\r\n                        <li><a href=\"//careers.stackoverflow.com\">Stack Overflow Careers</a></li>\r\n                    \r\n                </ol>\r\n            </td>\r\n    </tr>\r\n</table>\r\n                </div>\r\n            </div>\r\n\r\n            <div id=\"copyright\">\r\n                site design / logo &#169; 2015 stack exchange inc; user contributions licensed under <a href=\"http://creativecommons.org/licenses/by-sa/3.0/\" rel=\"license\">cc by-sa 3.0</a>                   with <a href=\"http://blog.stackoverflow.com/2009/06/attribution-required/\" rel=\"license\">attribution required</a>\r\n            </div>\r\n            <div id=\"svnrev\">\r\n                rev 2015.1.30.2262\r\n            </div>\r\n                <div id=\"additional-notices\">\r\n                    Ubuntu and Canonical are registered trademarks of Canonical Ltd.\r\n                </div>\r\n            \r\n        </div>\r\n    </div>\r\n    <noscript>\r\n        <div id=\"noscript-wa"], "copyright__copyright__copyright": ["stro, LnxSlck, Andrea Corbellini, hhlp, bodhi.zazen Feb 8 '13 at 17:54\n\nQuestions on Ask Ubuntu are expected to relate to Ubuntu within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.\n\nBrowse other questions tagged or ask your own question."]}