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Date:      Tue, 12 Jul 2011 11:17:04 +0300
From:      Kostik Belousov <kostikbel@gmail.com>
To:        Andrey Kosachenko <andrey.kosachenko@gmail.com>
Cc:        freebsd-x11@freebsd.org
Subject:   Re: Intel GPU kernel driver
Message-ID:  <20110712081704.GB43872@deviant.kiev.zoral.com.ua>
In-Reply-To: <4E1B56E7.4090801@gmail.com>
References:  <CANcjpOCSzSAeNKVG82PawMif7dqxn0f8Qy7w41PAJfEWcTBxVA@mail.gmail.com> <20110708182040.GC48734@deviant.kiev.zoral.com.ua> <CANcjpOAXXLDGu9z=PwZhX7=7t0qJOwnvbRj-8a_BL8nTqUrj4g@mail.gmail.com> <20110708184413.GD48734@deviant.kiev.zoral.com.ua> <CANcjpOASG7ocbZHom2K%2BwhT_a-u9CmnDRAcbPMSdfTrhHbi%2B0Q@mail.gmail.com> <20110709174612.GN48734@deviant.kiev.zoral.com.ua> <CANcjpOC0F8Mofy7-G1XH1vzfHZ0Whje7iP8pKvHMridBesk8Jg@mail.gmail.com> <4E1A0362.8050808@gmail.com> <20110710212339.GO43872@deviant.kiev.zoral.com.ua> <4E1B56E7.4090801@gmail.com>

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On Mon, Jul 11, 2011 at 11:02:47PM +0300, Andrey Kosachenko wrote:
> Hi, Konstantin,
>=20
> On 11.07.2011 00:23, Kostik Belousov wrote:
> >>So far I'd like to admin 2 issues:
> >>
> >>- switching between vts (Ctrl+Alt+F[1-9]) doesn't work over here,
> >>attempt to switch to consoles within range [1-8] leads to garbled screen
> >>(https://lh4.googleusercontent.com/-WmDhn1X-Ze0/Thn-O5dfeiI/AAAAAAAAABM=
/WIX3co3DQaM/s720/20110710_003-1.jpeg)
> >>though 9-th (occupied by X) is always displayed properly;
Yes, VT switch handling is not implemented.

> >>
> >>- attempt to play video (by means of vlc) freezes machine completely. I
> >>hasn't spotted it yet (system is installed in zfs and there is no
> >>freebsd-swap partition, so I didn't manage to make savecore leave smth.
> >>for further investigation);
> >>
> >>PS:
> >>I didn't mention any listings (pciconf,dmesg,...) however if those
> >>considered to be useful/helpful just let me know.
> >
> >Most likely, GPU hung, and what you saw as working X was operating
> >without acceleration. Without dmesg, it cannot be diagnosed further.
>=20
> Okay, csup'ed, applied all.5.1.patch, recompiled kernel and=20
> rebuilt/reinstall supplementary stuff.
>=20
> Results are the following:
> - video is played w/o any issues (machine didn't freeze);
> - vt switching behaves as in my previous post;
>=20
> Also not sure that X actually operates w/o acceleration: the following=20
> output makes me think so:
>=20
> # env LIBGL_DEBUG=3Dverbose sh -c 'glxinfo 2>&1' | egrep '(render|Driver)'
> direct rendering: Yes
> OpenGL renderer string: Mesa DRI Intel(R) Ironlake Mobile
>     GL_EXT_vertex_array_bgra, GL_NV_conditional_render,
If OpenGL apps work, and not cause the X server to die with SIGBUS,
then yes, most likely acceleration works.

>=20
> Additional information:
> - pciconf -lvb: http://pastebin.com/YT8wUBiZ
So this is another Ironlake.

>=20
> - dmesg output (with DE effects enabled, leads to garbled screen):=20
> http://pastebin.com/DU3RvzTi
>=20
> - dmesg output (failsafe DE session): http://pastebin.com/f4gghA6E
No useful information there.

>=20
> - and just in case X logs (with ModeDebug=3D"true"):=20
> http://pastebin.com/iEPxm8ib
When did the X server segfaulted ?

>=20
> --
> WBR,
> Andrey Kosachenko

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