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Date:      Thu, 3 Jan 2019 21:57:00 -0800
From:      Kevin Oberman <rkoberman@gmail.com>
To:        Kevin Zheng <kevinz5000@gmail.com>
Cc:        Pete Wright <pete@nomadlogic.org>, "freebsd-x11@freebsd.org" <x11@freebsd.org>
Subject:   Re: GPU hang on ThinkPad T420 with drm-kmod on 12.0-RELEASE
Message-ID:  <CAN6yY1vCmbevF08rKazAV3rAgBzhsr9B1EoMLWhD%2B-0C5dp4hw@mail.gmail.com>
In-Reply-To: <CAN6yY1vCDRbz4r_3g0=RHcLrqUwRrCwq7chcv7QzJFTYQaUEnw@mail.gmail.com>
References:  <d3c55331-8b70-c2f7-8772-97640fd4c8b6@gmail.com> <c1bd7244-70d7-109c-97c6-0bb969f1fe4f@nomadlogic.org> <e6daa5ad-160f-2abd-3678-c96a4e27eb6b@gmail.com> <CAN6yY1vCDRbz4r_3g0=RHcLrqUwRrCwq7chcv7QzJFTYQaUEnw@mail.gmail.com>

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Type alert.I have a T520, not T500.
--
Kevin Oberman, Part time kid herder and retired Network Engineer
E-mail: rkoberman@gmail.com
PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683


On Thu, Jan 3, 2019 at 9:44 PM Kevin Oberman <rkoberman@gmail.com> wrote:

> On Thu, Jan 3, 2019 at 5:08 PM Kevin Zheng <kevinz5000@gmail.com> wrote:
>
>> On 1/3/19 7:01 PM, Pete Wright wrote:
>> > Can you test out the drm-legacy-kmod pkg and see if that resolves these
>> > issues?  There was a recent user report that Ivy Bridge was working
>> with
>> > the drm-kmod package, but it's possible I was mistaken there.
>>
>> Sorry, yes, to be clear, I don't get these hangs with drm-legacy-kmod.
>>
>> drm-kmod also "works," except when it does hang. It takes a bit of use
>> to shake out the hang, and I'd also like to track down what's going on.
>>
>> I also thought to ask here, if any other Ivy Bridge users are noticing
>> the same thing.
>>
>> --
>> Kevin Zheng
>> kevinz5000@gmail.com | kevinz@berkeley.edu | PGP: 0xC22E1090
>>
>
> I am running on 12.0-STABLE r342382 on my T500 with Sandy Bridge. Other
> than screen size, I believe that it is identical with the T420. Are you
> sure that yours is ivy Bridge? Maybe later T420schanged processors?
>
> I just discovered that it is essential that I run with the modesetting
> driver, not xf86-video-intel. Are you running modesetting? Using he older
> driver triggered several issues for me.I also am running mesa 18.3.1 which
> is currently under test (and will hopefully be in ports soon). You can find
> the patches to 18.2.8 and then to 18.2.8  is covered in bug 230298
> <https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230298>; and 18.3.1 in bug
> 233034 <https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233034>.
> Patches must be applied in sequence and with the -E option.
>
> I have now been running on the system for over a day with no issues, but I
> need to give it more time before I pronounce it satisfactory. I also use
> Firefox, but I will give chromium a shot now and see if there is a problem.
> --
> Kevin Oberman, Part time kid herder and retired Network Engineer
> E-mail: rkoberman@gmail.com
> PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
>



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