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Date:      Mon, 23 Mar 2009 01:06:21 +0300
From:      Anonymous <swell.k@gmail.com>
To:        Robert Noland <rnoland@FreeBSD.org>
Cc:        freebsd-x11 <freebsd-x11@freebsd.org>
Subject:   Re: [PREVIEW] Nouveau on FreeBSD (Take 2)
Message-ID:  <86y6uxfc0y.fsf@gmail.com>
In-Reply-To: <1237758423.1687.34.camel@balrog.2hip.net> (Robert Noland's message of "Sun, 22 Mar 2009 16:47:03 -0500")
References:  <1237680263.1938.10.camel@balrog.2hip.net> <86r60pp8c0.fsf@gmail.com> <1237758423.1687.34.camel@balrog.2hip.net>

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(dropping freebsd-current@)

Robert Noland <rnoland@FreeBSD.org> writes:

> On Mon, 2009-03-23 at 00:15 +0300, Anonymous wrote:
>> Robert Noland <rnoland@FreeBSD.org> writes:
>> 
>> > Ok, this patch should work on NV50 chips also.
>> >
>> > What you get is EXA and Xv.
>> >
>> > You still need:
>> >
>> > A recent -CURRENT or -STABLE.
>> >
>> > git master of libdrm and xf86-video-nouveau.
>> >
>> > This patch.
>> >
>> > Things I've figured out since the last patch...
>> >
>> > On NV50 class hardware you need to have a compositing manager running
>> > for Xv to work.  That means xcompmgr, metacity with composite enabled,
>> > xfce (rumored to work as well, haven't tried).  If your running Gnome
>> > with metacity, open gconf-editor and go to apps->metacity->general and
>> > check the composite box.
>> [...]
>> >
>> > http://people.freebsd.org/~rnoland/drm-nouveau-032109.patch
>> >
>> > robert.
[...]
>> - Scrolling (shift+pgup/pgdn) in xterm is *slower* with DRM than
>>   without it but still faster than with NoAccel. I'm using xterm with
>>   TTF font (DejaVu Sans Mono). It's yet more noticeable when scrolling
>>   in less(1)/screen(1) when redrawing affects whole screen not half.
>>   Besides, there is more flickering with highly updating cli apps when
>>   using DRM. However, launching xcompmgr fixes this sluggishness.
>
> This may be related to compositing with git server.  Text rendering is
> causing considerable load on the Xserver with compositing enabled.  The
> composite manager is only needed for Xv, can you try without it.

Perhaps, you misread. That slow scrolling in xterm was *without*
xcompmgr running. The last sentence was added afterwards when I
*accidentally* successfully launched xcompmgr for XVideo test
and noticed that scrolling is fast again, even faster than without DRM.



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