Martin Olsson wrote: > @Francis, do you have accesss to two computers? No I only have the one computer but I'll ask work maybe they will loan me one of the portables > If so it would be very > useful if you captured a stacktrace from X when it's in that black buggy > state. > > Please login to the buggy machine using SSH, then trigger the bug (just > switch virtual terminals as you described above). Once the screen is > black, do these things: > > * (with the machine still hung) please save the output of the command > "dmesg" and also the files "/var/log/Xorg.0.log" and > "/var/log/Xorg.0.log.old" (I know you already attach one copy of > xorg.log earlier but I'm hoping that there might be some errors printed > into xorg.log when it hangs so that's why I'd like to collect this log > while the machine is still in that buggy "black screen" state). > > * install debug packages by running the command "sudo apt-get install > xserver-xorg-core-dbg xserver-xorg-video-intel-dbg libgl1-mesa-dri-dbg > libgl1-mesa-glx-dbg" Done > * start the gdb debugger using this command "sudo gdb -p $(pidof X)" > > * activate logging to a file on disk inside the gdb debugger by running > "set logging file gdb_blackscreen.txt" followed by the command "set > logging on". > > * then, record a full backtrace by running the command "backtrace full" > and pressing ENTER until all of it is printed. When you've returned to > the "(gdb)" prompt just type "quit". > > * hopefully you can now use the command "sudo reboot now" to reboot the > machine without having to use the powerbutton > > * attach the files to this bug report > > OK will endeavour to do this but it might take me a while to get access to another machine > (PS. There is another way of collecting X backtraces describe here: > https://wiki.ubuntu.com/X/Backtracing#Backtrace%20with%20gdb ) > >
-- [915g] can't return to X after VT-switching (intel 82915G/GV/910GL) https://bugs.launchpad.net/bugs/374310 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs -- universe-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/universe-bugs
