From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alex Deucher <alexdeucher@gmail.com>
Subject: Re: [Intel-gfx] Major 2.6.38 / 2.6.39 / 3.0 regression ignored?
Date: Sat, 23 Jul 2011 11:10:53 -0400
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To: Kirill Smelkov <kirr@mns.spb.ru>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>, Herbert Xu <herbert@gondor.apana.org.au>, Luke-Jr <luke@dashjr.org>, intel-gfx@lists.freedesktop.org, LKML <linux-kernel@vger.kernel.org>, dri-devel@lists.freedesktop.org, Pekka Enberg <penberg@kernel.org>, Ray Lee <ray-lk@madrabbit.org>, Andrew Morton <akpm@linux-foundation.org>, Linus Torvalds <torvalds@linux-foundation.org>
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On Fri, Jul 22, 2011 at 5:31 PM, Kirill Smelkov <kirr@mns.spb.ru> wrote:
> On Sat, Jul 23, 2011 at 01:08:14AM +0400, Kirill Smelkov wrote:
>> On Fri, Jul 22, 2011 at 01:50:04PM -0700, Keith Packard wrote:
>
>> > You're right, of course -- UMS is a huge wart on the kernel driver at
>> > this point, keeping it working while also adding new functionality
>> > continues to cause challenges. We tend to expect that most people will
>> > run reasonably contemporaneous kernel and user space code, and so three
>> > years after the switch, it continues to surprise us when someone
>> > actually tries UMS.
>>
>> We are planning upgrade to KMS too. The kernel is upgraded more often
>> compared to userspace, because of already mentioned (thanks!) "no
>> regression" rule. Userspace is more complex and more work in my context,
>> so it is lagging, but eventually we'll get there.
>
> Also wanted to say, that if whole X could be built, like the kernel, from one
> repo without multirepo-setup tool, with 100% reliable working
> incremental rebuild, etc... it would be a bit easier to upgrade X too.
>
> Sorry for being a bit offtopic, could not resist. I was keeping that
> though in my head for ~ 2 years already, and now had a chance to mention it.

You don't have to rebuild all of X to use KMS.  In most cases, you
just need to update the ddx for your card.

Alex