With this workaround in place, desktop wallpaper (on the working display) cannot be set using the ’Appearance’ configuration tool, and with automatic login the ’login screen as background’ effect (the image attached to #1) is there too. This could be Bug #1159430, and as mentioned there, I can work around it using Compiz’ Wallpaper plugin (i.e. setting a wallpaper in Compiz sets it on the external display).

Looks like Bug #1221954 is a duplicate wrt. the ’80s and the ’90s. Upstream report (which I’ve linked to this one) says those genres have been removed, so that leaves only Rock ’n’ Roll from my report to check for in latest upstream. (And of course, those upstream fixes haven’t yet made it into Ubuntu, so these LP reports are still valid.)

Look for ’Radio’ on the left, in the ’Library’ panel. Selecting it you get the Genre list as the next panel to the right; there you should see the radio station genres listed.

I’ve attached logs from Trusty (which is affected), the bug is still present in 12.04 too.

Also affects 12.04 (with gedit 3.4.1-0ubuntu1).

When the selected/renamed file is a directory: see Bug #1105232.

Had just opened Gedit, and the file chooser dialog from there. Had successfully selected one directory in the dialog, and the crash occurred when I clicked (I think) on the file name listing column. Couldn’t reproduce it again.

The system in question is currently out of use (and reproducing the bug isn’t straightforward), so I’ll let this one expire.

I have Trusty and Precise installations affected by this. For me just one refresh usually is enough to fix it though. Also, sometimes the blackening doesn’t happen straight away but only once I start scrolling the page down to the comments section.

I’ve made some progress. By setting up an xorg.conf with a modeline for the external display, I got graphics on the (lightdm) login screen to show up on it. But the login input fields weren’t on this screen (it was just the background), so this was further evidence that there’s monitor misdetection going on (greeter/lightdm happily thinks it’s displaying the input fields on the broken internal LCD).

So I further tweaked xorg.conf to force X to ignore the internal display, and now I’ve got a working login screen back on the external display. I’ll attach my xorg.conf below; it is a satisfactory workaround.