Intel GPU kernel driver

[Kostik Belousov]

On Mon, Jul 11, 2011 at 11:02:47PM +0300, Andrey Kosachenko wrote:
> Hi, Konstantin,
> 
> 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.
> 
> Okay, csup'ed, applied all.5.1.patch, recompiled kernel and 
> rebuilt/reinstall supplementary stuff.
> 
> Results are the following:
> - video is played w/o any issues (machine didn't freeze);
> - vt switching behaves as in my previous post;
> 
> Also not sure that X actually operates w/o acceleration: the following 
> output makes me think so:
> 
> # env LIBGL_DEBUG=verbose 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.

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

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

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

> 
> --
> WBR,
> Andrey Kosachenko
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