I tried Bryce's second suggestion of using old kernels. I have two previous versions of 2.6.38 installed, 2.6.38-3-generic and 2.6.38-4-generic. I booted each into recovery and normal mode 4 times, for a total of 16 boots. Here's the number of times the boot was a success, where I either got to the recovery boot menu or gdm, (regardless of whether the screen brightness had to be manually increased from 0, or if the plymouth boot screen displayed).
2.6.38-4-generic, normal: 1 success, 3 failures 2.6.38-4-generic, recovery: 4 successes 2.6.38-3-generic, normal: 4 successes 2.6.38-3-generic, recovery: 3 successes, 1 failure At no time did I see a stack trace like the one I posted, but I've only seen that in recovery mode. (Would it be written somewhere persistent between boots? It's not in /var/log/syslog.) I took more notes on the failures. They're pretty vague and qualitative, but have slightly more detail of what each boot was like. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/727620 Title: [Radeon HD 5650 and 5470] Driver crash during recovery boot and in normal boot -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
