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Date:      Sun, 24 Aug 2008 17:12:40 +0200
From:      "Paul B. Mahol" <onemda@gmail.com>
To:        "Robert Noland" <rnoland@freebsd.org>
Cc:        freebsd-x11 <freebsd-x11@freebsd.org>
Subject:   Re: [CFT] drm updates
Message-ID:  <3a142e750808240812q50c1237as8c391dc35fc98ac0@mail.gmail.com>
In-Reply-To: <3a142e750808240329n55d1b95bnd701dde4892c6c14@mail.gmail.com>
References:  <20080821120021.90B5610656E5@hub.freebsd.org> <200808211456.01947.matt@chronos.org.uk> <1219544221.3430.37.camel@wombat.2hip.net> <3a142e750808240329n55d1b95bnd701dde4892c6c14@mail.gmail.com>

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On 8/24/08, Paul B. Mahol <onemda@gmail.com> wrote:
> On 8/24/08, Robert Noland <rnoland@freebsd.org> wrote:
>> I've uploaded a final patch set to:
>>
>> http://people.freebsd.org/~rnoland
>>
>> I have committed this version to -CURRENT, but patches are available for
>> RELENG_7 as well.
>>
>> This version mostly just fixes a long standing memory leak.
>>
>> All of the reports for radeon have been good.  I'm still seeing a few
>> odd things with Intel though.  The most severe issue is on my 965gm.
>> After restarting X, it will hang in a way that I have never seen
>> before...  The small amount of evidence that I have been able to collect
>> suggests that this may be due to mesa trashing the hardware.  I've spent
>> a couple of days trying to figure out exactly what could be wrong.  This
>> morning I rebuilt my kernel with a stock drm from src and I got exactly
>> the same hang.  Since this update does help lots of people and doesn't
>> seem to make things worse than they were to begin with, I went ahead and
>> committed it.
>>
>> I was incorrect about the patch to libdrm... It isn't needed in 2.3.1
>> and it is already committed upstream.  I'll commit that update to ports
>> soon also.  It, along with a recent xf86-video-* are needed to enable
>> the new vblank behavior, which will disable vblank interrupts if there
>> are no active consumers.
>>
>> robert.
>>
>
> Do I need to update some ports? because with kernel from HEAD I have
> encountered problems when drm is loaded (agp + drm + i915)
> astro/stellarium caused deadlock, only mouse pointer could move, if I did
> not
> started it, system will panic anyway after some time. I did not yet tested
> vty switching,....
>
> related hardware:
>
> hostb0@pci0:0:0:0:      class=0x060000 card=0x30a2103c chip=0x27a08086
> rev=0x03
> hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = '955XM/945GM/PM/GMS/940GML Express Processor to DRAM
> Controller'
>     class      = bridge
>     subclass   = HOST-PCI
> vgapci0@pci0:0:2:0:     class=0x030000 card=0x30a2103c chip=0x27a28086
> rev=0x03 hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = 'Mobile 945GM/GU Express Integrated Graphics Controller'
>     class      = display
>     subclass   = VGA
> vgapci1@pci0:0:2:1:     class=0x038000 card=0x30a2103c chip=0x27a68086
> rev=0x03 hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = 'Mobile 945GM/GU Express Integrated Graphics Controller'
>     class      = display
>
> also if Xorg is never started, trying to unload agp.ko
> (after unloading i915.ko and drm.ko) module will cause panic.
>

Comparing to xf86-video-i815, xf86-video-intel is more stable (it doesnt panic, crash, hardlocks, ...), but still locks display when starting astro/stellarium.



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