KDM, buggy drivers and restarting X on logout

Scott Kitterman ubuntu at kitterman.com
Sun Feb 12 05:47:07 UTC 2012

On Saturday, February 11, 2012 04:14:24 PM Philip Muskovac wrote:
> On IRC we had a discussion about buggy graphics drivers [1], which
> include an issue with the nvidia blob [2] and the open source ati driver
> [3].
> A workaround for those is telling KDM to not reset the current X session
> but telling it to actually restart X by setting
> TerminateServer=true
> in kdmrc.
> <yofel> ossi: so the only difference between that being off and on is
> that logout is slower? (And you don't notice driver bugs)
> <ossi> yofel: basically, yes
> On my eeePC I don't notice any slowdown, and on my thinkpad shutting
> down plasma takes longer than restarting X. So do we want to eventually
> use that for precise if it results in a less-buggy-by-default release?
> And if yes, when should we enable that? Now, to get more regression
> testing, or later to have a longer testing phase for the drivers?
> Philip
> [1] http://irclogs.ubuntu.com/2012/02/11/%23kubuntu-devel.html#t13:19
> [2] http://pad.lv/930614
> [3] http://pad.lv/651294

If you're talking to ossi about changes in our defaults, I think we should 
also make the changes in https://bugs.launchpad.net/bugs/641712 - it's a bad 
bug and I don't know how else to fix it.  I've been running with the 'work 
around' in place for several releases with no trouble from it.

Scott K

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