On 14.06.2013 18:55, Scott Kitterman wrote:
> On Friday, June 14, 2013 11:50:05 PM Ma Xiaojun wrote:
>> On Fri, Jun 14, 2013 at 11:33 PM, Scott Kitterman <ubuntu@kitterman.com>
> wrote:
>>> Upstream kwin tells us they already see bug reports from Kubuntu users due
>>> to mesa changes to support Unity. I don't think it's just a new back
>>> end.
>> I checked mesa source package the other day. It looks more like a
>> straight sync from Debian drop some kfreebsd patches.
>>
>> What are the bugs?
>
> As I mentioned, I'm relying on what upstream kwin has said. I know there have
> been times (quantal) when Ubuntu moving to a new mesa version in a manner
> that, from the perspective of our upstream, was overly aggressive caused
> problems. I would assume that was done because the features were wanted for
> Ubuntu specific reasons and not just version chasing. It may be no more than
> that.
I guess one such issue was a regression in mesa 9.0 found on 12.10
causing problems with KDE on some (older) intel hw. We need to offer the
latest releases in order to support newer hw for OEM's, it's not just
version chasing. We also have a MRE for mesa so we can push
point-releases as SRU which provides a way to fix such regressions and
other bugs of course.
The current packaging _does_ have something for Unity; reverts a couple
of commits which caused the blur effect to be painfully slow on a few
generations of Intel hw, easily noticed when alt-tabbing or opening the
dash etc. Upstream says this should be fixed on git master (which will
be released as 9.2 or 10.0 in August), but this hasn't been confirmed yet.
--
t
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