[Xmonad] Tabbed layout, xinerama, strange crashing

[Dave Harrison]

Stefan O'Rear wrote:
> On Mon, Jun 11, 2007 at 11:32:39AM +1000, Dave Harrison wrote:
>> Hey all,
>>
>> I've been trying out the new tabbed layout and it was working really
>> well for about 2 hours, then it suddenly just started killing my X for
>> some reason.
>>
>> What I was finding was that as soon as I switched screens my session
>> would die (dropping me back to the gdm login page).  It would also do
>> this if I switched to a workspace > 5.  Weird eh ?
>>
>> I'm using the darcs head for contrib, xmonad and x11-extras, so I
>> pulled the latest (again, just to be sure) for them and no updates.
>> I'm  also using Feisty Ubuntu as my OS if that makes any difference.
>>
>> I rebuilt and reinstalled, no luck.
>>
>> As soon as I dropped the tabbed module out and rebuilt/reinst xmonad
>> it's all back to working again (albeit sans tabbing which I really
>> REALLY miss now already :-) ).
>>
>> Not being an X guru, and not very up on haskell, I'm not sure how to
>> try and debug this ... can anyone suggest how I might try and track
>> this problem down ?
> 
> You're not alone - #xmonad says:
> 
> 18:16 < jcreigh> oh, joy: xmonad crashes. (bug in tabbed)
> 18:16 < jcreigh> I think it only affects Xinerama.
> 18:18 < sjanssen> huh?  what business does tabbed have crashing?
> 18:18 < jcreigh> the bug seems to be: attempting to switch to an empty workspace while there is still a tabbed workspace visble makes xmonad die: "xmonad: No match in record selector StackSet.focus"

Yep, that matches my experience exactly.