Hi all, i just stumbled over a problem that maybe specific to Ubuntu, but I think it came up on this list some time ago and I found a solution that works for me.
I have both graphic cards working using Rafael's janitor script since 9.10 or so. In the newest stable Ubuntu version 11.04, I found that the X server crashes when using the Intel graphics. In the log there was the fatal server error: "xf86OpenConsole: VT_WAITACTIVE failed: Interrupted system call" This error left me without an X server and without a usable VT. After some searching I understand this to be due to a racing condition between different controllers of the virtual terminals. A workaround is to introduce a short sleep in the gdm upstart conf (under /etc/init/gdm.conf): 46 sleep 1 47 exec gdm-binary $CONFIG_FILE 48 end script This seems to leave the controllers enough time to settle. Cheers, Philipp
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