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Date:      Sun, 21 Mar 2010 03:06:25 -0700
From:      Garrett Cooper <yanefbsd@gmail.com>
To:        jhell <jhell@dataix.net>
Cc:        Warren Block <wblock@wonkity.com>, Robert Noland <rnoland@freebsd.org>, Martin Wilke <miwi@freebsd.org>, Torfinn Ingolfsen <tingox@gmail.com>, ports@freebsd.org, x11@freebsd.org
Subject:   Re: [Call for Testing] X.org 7.5 for FreeBSD
Message-ID:  <7d6fde3d1003210306p163f4751h2ab306cb3b72e202@mail.gmail.com>
In-Reply-To: <alpine.BSF.2.00.1003210542070.76325@pragry.qngnvk.ybpny>
References:  <20100311134413.GH19740@bsdcrew.de> <ef8c8a881003111448h67dad685h87c12c3723c242c9@mail.gmail.com> <1268414671.2608.293.camel@balrog.2hip.net> <ef8c8a881003121110x3105762drab2fa05d2ed7825b@mail.gmail.com> <1268484504.2608.309.camel@balrog.2hip.net> <alpine.BSF.2.00.1003141452440.5493@wonkity.com> <1268625423.2608.348.camel@balrog.2hip.net> <alpine.BSF.2.00.1003210542070.76325@pragry.qngnvk.ybpny>

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On Sun, Mar 21, 2010 at 2:42 AM, jhell <jhell@dataix.net> wrote:
>
> On Sun, 14 Mar 2010 23:57, Robert Noland wrote:
> In Message-Id: <1268625423.2608.348.camel@balrog.2hip.net>
>
>> On Sun, 2010-03-14 at 15:02 -0600, Warren Block wrote:
>>>
>>> On Sat, 13 Mar 2010, Robert Noland wrote:
>>>
>>>> Ok, now that agp seems to be working... I have created a port for the
>>>> 2.9.1 version of the Intel driver. =A0You will need to uninstall the
>>>> existing intel driver and install this one. =A0You still won't have dr=
m,
>>>> but should be a good bit better than vesa...
>>>>
>>>> http://people.freebsd.org/~rnoland/xf86-video-intel29.tar.gz
>>>
>>> Problem: after switching away from X with ctrl-alt-f4, on switching bac=
k
>>> the screen is corrupted. =A0Stuff that's drawn on top of it after that
>>> point is usually correct. =A0The clear areas on this image were caused =
by
>>> GIMP redrawing them; before opening it, they were the same as the strip
>>> on the right edge.
>>
>> Ok, I'm not surprised... I spent a little time playing with the 2.9.1
>> driver on my g45 today. =A0Basically... It is horrid...
>>
>
> Damn! I rely on this driver for my main machine that has a i845G in it. T=
his
> thing tends to keep getting more shitty with every release. Or I suppose =
I
> could cough it up to ancient hardware to... ;)
>
> The last Intel driver I remember working seamlessly with my i845G with no
> known side effects and without HAL was 2.3*. After that it somehow became
> very dependent on HAL and if compiled without HAL would pretty much disab=
le
> you(being me) from switching from X to the console and back again resulti=
ng
> in a reboot after a borked screen.
>
> Now that I see the following I sort of understand whats happening with th=
is.
> And eventually this hardware will have to be replaced :(
>
>> When Intel chose to remove all non-GEM support for the 2.8 series
>> driver, what is actually going on is that it is calling into
>> libdrm_intel's fake buffer manager and doing ton's of memcpy's. =A0It
>> seems to be sort of ok as long as it is just basic 2d, but enable
>> composite in metacity and it falls on it's face... =A0Granted all of my
>> machines run with WITNESS and INVARIANTS, but you can almost count the
>> pixels as they are drawn...
>>
>> I was thinking that Intel had actually killed the fake buffer manager as
>> well, but it looks like it does still exist in libdrm git. =A0Perhaps it
>> was that they removed it from mesa. =A0At any rate, they don't deny that
>> it is broken, nor do they test it or have any intention of fixing it...
>>
>> The only reason for using the 2.9.1 driver that I can think of is if you
>> have an Ironlake chipset, which isn't supported in 2.7.1. =A0I now have =
to
>> decide whether to spend time back porting Ironlake support to 2.7.1 or
>> spend time on GEM.

    Intel's killing off non-GEM support slowly and surely, so we have
to port GEM or die a slow and painful death on Intel accelerated
hardware: http://www.phoronix.com/scan.php?page=3Dnews_item&px=3DNjc2NA ,
http://software.intel.com/sites/oss/project_spotlight.htm . Kind of
sad now that anholt is no longer really a contributing member to
FreeBSD.
Thanks,
-Garrett



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