Error of Beryl+AIGLX on i965

[Andrew Barr]

On Tuesday 14 November 2006 22:52, Wang, Wei Z wrote:
> Thank you Adrew for your kind help :)
>
> As for the "(II) AIGLX: Loaded and initialized
> /opt/X11R7/lib/dri/i915_dri.so" Sorry for the typo, it should be
> _i965_dri.so_ and I am sure I did it on i965 HW. Actually, this AIGLX
> warnings appear on several of our test machines (i945, i915 and i965), so I
> just copied and pasted from some i915 machine by mistake. But the warning
> (WW) is real and exactly as the warning on i965 machines:)
>
>
> And pls. see [Wei] below. Thank you for your attention.
>
> >-----Original Message-----
> >From: Andrew Barr [mailto:andrew.james.barr at gmail.com]
> >Sent: 2006年11月15日 10:29
> >To: Wang, Wei Z
> >Cc: xorg at lists.freedesktop.org
> >Subject: Re: Error of Beryl+AIGLX on i965
> >
> >Here's what I understand: It should work with the latest versions of
> >everything--xserver, Mesa, and some miscellaenous bits: glproto for
> >one--except that GLX_ext_texture_from_pixmap support is broken in the
> >current
> >xserver git HEAD and fixing it is waiting on GLX 1.3 support.
>
> [Wei] Before GLX 1.3 is available, and workaround to enable compiz?
> We just gave a quick try on FC6 with its compiz+AIGLX, however, everytime
> we push the "Enable desktop effects" button, it returns us the gnome login
> screen without any cube effects. -- maybe it is also the
> "GLX_ext_texture_from_pixmap" 's reason ?

That sounds like an X server crash. In that case, you will find information 
about what happened and a possible backtrace in 
${prefix}/var/log/Xorg.0.log.old, ${prefix} being the root of your X server 
installation.

I have an Intel DG965RY Desktop Board-based system, and I have been meaning to 
try Fedora 6 on it. So I think that is something I will do tomorrow and see 
what I can turn up.

> >Currently your screen just turns white because of the missing GL
> > extension.
> >
> >On Tuesday 14 November 2006 21:13, you wrote:
> >> Hi all:
> >>
> >> I am just swamped with enabling AIGLX+beryl on i965 chipset (XGL+beryl
> >> is
> >> good), and met some problem which is similar to this bug
> >> (https://bugs.freedesktop.org/show_bug.cgi?id=8155)
> >>
> >>
> >> My environment is:
> >> OSD: Ubuntu Edgy
> >> Xorg: 7.1.1
> >> 3D driver: from tip of Mesa
> >> ========================================
> >> This is the options I modified in xorg.conf
> >>
> >> 1, in Section "Module":
> >> 	#Load  "GLcore"
> >> 	Load "glx"
> >> 	Load "dbe"
> >> 2, Section "ServerLayout"
> >> 	Option "AIGLX" "true"
> >> 3, Section "Extensions"
> >> 	Option "Composite" "Enable"
> >> 4, Section "Device"
> >> 	Option "XAANoOffscreenPixmaps"
> >> 5, Section "Screen"
> >> 	DefaultDepth 24
> >> 6, Section "DRI"
> >> 	Mode    0666
> >> ==================================
> >
> >Just a tip for future reference, using 16-bit color depth vastly improves
> > the performance of Intel hardware--965 included.
>
> [Wei] thanks :)
>
> >> Xorg.0.log, the following warning appears forever if AIGLX is enabled
> >>
> >> (WW) AIGLX: 3D driver claims to not support visual 0x23
> >> (WW) AIGLX: 3D driver claims to not support visual 0x24
> >> (WW) AIGLX: 3D driver claims to not support visual 0x25
> >> (WW) AIGLX: 3D driver claims to not support visual 0x26
> >> (WW) AIGLX: 3D driver claims to not support visual 0x27
> >> (WW) AIGLX: 3D driver claims to not support visual 0x28
> >> (WW) AIGLX: 3D driver claims to not support visual 0x29
> >> (WW) AIGLX: 3D driver claims to not support visual 0x2a
> >> (WW) AIGLX: 3D driver claims to not support visual 0x2b
> >> (WW) AIGLX: 3D driver claims to not support visual 0x2c
> >> (WW) AIGLX: 3D driver claims to not support visual 0x2d
> >> (WW) AIGLX: 3D driver claims to not support visual 0x2e
> >> (WW) AIGLX: 3D driver claims to not support visual 0x2f
> >> (WW) AIGLX: 3D driver claims to not support visual 0x30
> >> (WW) AIGLX: 3D driver claims to not support visual 0x31
> >> (WW) AIGLX: 3D driver claims to not support visual 0x32
>
> [Wei] Actually I really want to know the root cause of these warnings :)

The nonsupported visual warnings are harmless and IIRC a fix was recently 
committed for it.

> >> (II) AIGLX: Loaded and initialized /opt/X11R7/lib/dri/i915_dri.so
> >
> >As was pointed out on the xorg list, this isn't right. The correct i965
> > module is i965_dri.so. So are you /sure/ you have i965 hardware?
> >
> >> ==================================
> >> In gnome environment, execution of "beryl-manager" introduces the
> >> following
> >> errors (and I got the cube effects with white blinking facets):
> >>
> >> LibGL warning: 3D driver claims to not support visual 0x5a
> >> XGL absent, checking for NVIDIA
> >> Nvidia Absent, assuming AIGLX
> >> LibGL warning: 3D driver claims to not support visual 0x5a
> >> beryl: No stencil buffer. Clipping of transformed windows is not going
> >> to be correct when screen is transformed.
> >> Initiating splash
> >> berly: water: GL_ARB_fragment_program is missing.
> >> ==================================
> >
> >Alot of this is normal and doesn't affect correct operation of
> > Beryl/Compiz on Intel chipsets.
>
> [Wei] do you mean that warning "3D driver claims to not support visual 0x5a
> " doesn't matter? 

Right. This was a harmless bug that was recently fixed.

> My white screen are all due to the missing of 
> "GL_ARB_fragment_program"?

You'll have to ask someone who knows better than I, but the white screen issue 
from what I understand, is because the GLX_ext_texture_from_pixmap extension 
is currently broken in HEAD.

-- 
Andrew Barr

Men go crazy in congregations they only get better one by one.
	-- Sting, "All This Time" (The Soul Cages, 1991)