Thanks, using version 4.0 from https://garage.maemo.org/frs/?group_...elease_id=1971 but no crashes so far. Not sure if it's the right one, as the taskbar icons look like the stock ones while yours are very different. The font does look a bit smaller than the default, though not as small as in your previous screenshots.

I don't think it's the kernel, if there's anything in the community that triggers it I would suspect the X server (I'm still not 100% sure I guessed the build flags correctly on that one).

Is that device lock or screen lock? Does it also happen when the screen is re-activated after blanking? If so it sounds like an applet crashing and taking hildon-desktop down with it.

Yeah, that's standard. As a defence mechanism, when hildon-desktop crashes it gets restarted without loading any third-party plugins (otherwise it could easily find itself in an endless restarting loop), but it doesn't modify its configuration so a reboot brings it back as set up by the user.

The usual way of tracking something like this down is disabling all desktop/statusbar/taskbar applets and re-enabling them one by one until the bug reappears.

But since we now have two reports, you can start by listing your applets. Chances are the trigger would be one common in both tablets.