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Gusar
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PostPosted: Wed Mar 01, 2006 11:58 am    Post subject: Reply with quote

I'm not 100% sure, but I think I'm mostly right with this:

Acceleration and direct rendering are two different things. When you run e.g. quake3 on a normal X server it is accelerated and rendered directly on the screen. But when you run quake3 in Xgl, it is still accelerated but it is rendered indirectly - into a pbuffer, which Xgl then uses as a texture and then draws that texture onto the screen (and performs all the compiz effects on it just like any other window). Perfomance is a bit slower than direct rendering and depends on how good your card handles pbuffers.
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TuffSoundinName
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PostPosted: Wed Mar 01, 2006 1:24 pm    Post subject: Reply with quote

Makes sense. So far, I haven't had any problems with it at all. I run an AMD Duron Applebred ~1800 MHZ, and an nVidia GeForce4 MX 4000
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PostPosted: Wed Mar 01, 2006 2:56 pm    Post subject: Reply with quote

I've managed to get _FULL_ Direct rendering with my 6600GT in XGL, just still no luck with compiz... :/
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PostPosted: Wed Mar 01, 2006 6:20 pm    Post subject: Reply with quote

How the hell did you get direct rendering to work? Also, when I use compiz, I lose my window borders, thus disabling any window dragging/resizing. Any thoughts?
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PostPosted: Wed Mar 01, 2006 6:52 pm    Post subject: Reply with quote

you sure you have all the right plugins enabled?
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PostPosted: Wed Mar 01, 2006 7:07 pm    Post subject: Reply with quote

Duh...I knew the answer to that one...how do I enable plugins? I couldn't really find how in the wiki.
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PostPosted: Wed Mar 01, 2006 7:11 pm    Post subject: Reply with quote

just use gnome-window-decorator
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PostPosted: Wed Mar 01, 2006 7:14 pm    Post subject: Reply with quote

I do...it doesn't work worth a damn.
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PostPosted: Wed Mar 01, 2006 10:45 pm    Post subject: Reply with quote

LordMyth wrote:
unz wrote:
A big thanks to CoffeeBuzz for his effort .. everything works ;)

just two question ... direct rendering is supposed to be enabled or not?, i remember it was only ati's stuff ... but now?
did anyone managed to use gdm? i modified it to use xgl ... but it starts x ... i don't mind typing everytime ./startxgl ... but i'd like to end my session, and not to kill it. I got problem too with dbus-session, it isn't exported and some progs don't find it.

I have everything automagical with gdm...
Follow this guide:
http://www.ubuntuforums.org/showthread.php?t=131267
(make sure you do killall gdm. crtl-alt-backspace won't work for updating the X server. BTW, no need for that second gdm config too, I kept everything in the normal gdm config file, as noted by the gentoo wiki)
Then in the gnome session manager just remove metacity from the session, add your xgl start script to the autostart applications list (don't put it at 1 or so, keep it on 50)
This is my start script:
Code:
adriaan@localhost ~ $ cat /usr/bin/startxgl
gnome-window-decorator & LD_LIBRARY_PATH=/usr/lib/opengl/xorg-x11/lib/   compiz --replace gconf decoration wobbly fade minimize cube rotate zoom scale move resize place switcher &


thanx a lot, but it seems i'm a bit dumb and something goes wrong.

i managed to start gdm forcing gdm.conf-custom
Code:
gdm --config /etc/X11/gdm/gdm.conf-custom
otherwise X starts
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PostPosted: Wed Mar 01, 2006 11:02 pm    Post subject: Reply with quote

You can prace everything in the normalgdm config
look at the gentoo wiki.
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PostPosted: Thu Mar 02, 2006 12:36 am    Post subject: Reply with quote

Tiger683 wrote:
I've managed to get _FULL_ Direct rendering with my 6600GT in XGL, just still no luck with compiz... :/


This is completely nonsense, you _CAN'T_ get direct rendering with Xgl (this is how Xgl works). But indirect rendering doesn't mean that it isn't accelerated (it is accelerated - it uses your real X server for OpenGL rendering).
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PostPosted: Thu Mar 02, 2006 11:17 am    Post subject: Reply with quote

hi there,

i also have been trying to get xgl running but i seem to get an error which i could not find anywhere
tried google and some forums but that did not work out for me

the error is :

$ Xgl :1 -ac -accel glx:pbuffer -accel xv
dlopen: /usr/lib/xorg/modules/xgl/libglcore.so: undefined symbol: _swrast_BlitFramebuffer

Fatal server error:
No GLX modules loaded
dlopen: /usr/lib/xorg/modules/xgl/libglcore.so: undefined symbol: _swrast_BlitFramebuffer

FatalError re-entered, aborting
No GLX modules loaded
Aborted
$

now i have been looking for _swrast_BlitFramebuffer on google but notting .. but when i did an search for only "swrast" some mesa things showed up

does anyone know how to solve this ?


got an :
01:00.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5500] (rev a1)

and running media-video/nvidia-kernel/glx 1.0.8178-r3

thanks

skeruno
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PostPosted: Thu Mar 02, 2006 12:04 pm    Post subject: Reply with quote

skeruno wrote:
hi there,

i also have been trying to get xgl running but i seem to get an error which i could not find anywhere
tried google and some forums but that did not work out for me

the error is :

$ Xgl :1 -ac -accel glx:pbuffer -accel xv
dlopen: /usr/lib/xorg/modules/xgl/libglcore.so: undefined symbol: _swrast_BlitFramebuffer

Fatal server error:
No GLX modules loaded
dlopen: /usr/lib/xorg/modules/xgl/libglcore.so: undefined symbol: _swrast_BlitFramebuffer

FatalError re-entered, aborting
No GLX modules loaded
Aborted
$

now i have been looking for _swrast_BlitFramebuffer on google but notting .. but when i did an search for only "swrast" some mesa things showed up

does anyone know how to solve this ?


got an :
01:00.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5500] (rev a1)

and running media-video/nvidia-kernel/glx 1.0.8178-r3

thanks

skeruno

I've just rebuilt the whole thing and getting the same...WTF?!?!?!

:cry: :(
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PostPosted: Thu Mar 02, 2006 12:39 pm    Post subject: Reply with quote

same here, xgl cvs is bugged atm i think
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PostPosted: Thu Mar 02, 2006 1:31 pm    Post subject: Reply with quote

I cant even checkout the xgl source at the moment. EDIT: managed to get it compiled, I get same error. Will look into it later.

Mesa had the FEATURE_EXT_framebuffer_blit extension added. See commits below.
--------------------------------------------------------------------------------------
Log message:
implementation of _swrast_BlitFramebuffer()

Modified files:
Mesa/src/mesa/swrast/:
s_blit.c swrast.h

Revision Changes Path
1.2 +754 -4 Mesa/src/mesa/swrast/s_blit.c
http://cvs.freedesktop.org/mesa/Mesa/src/mesa/swrast/s_blit.c
1.52 +4 -4 Mesa/src/mesa/swrast/swrast.h
http://cvs.freedesktop.org/mesa/Mesa/src/mesa/swrast/swrast.h
--------------------------------------------------------------------------------------
Log message:
plug in BlitFramebuffer function

Modified files:
Mesa/src/mesa/drivers/common/:
driverfuncs.c

Revision Changes Path
1.20 +4 -0 Mesa/src/mesa/drivers/common/driverfuncs.c
http://cvs.freedesktop.org/mesa/Mesa/src/mesa/drivers/common/driverfuncs.c
--------------------------------------------------------------------------------------
Log message:
check FEATURE_EXT_framebuffer_blit

Modified files:
Mesa/src/mesa/main/:
extensions.c

Revision Changes Path
1.142 +2 -0 Mesa/src/mesa/main/extensions.c
http://cvs.freedesktop.org/mesa/Mesa/src/mesa/main/extensions.c

My strace:

Code:

munmap(0xa7fa8000, 75505)               = 0
open("/dev/urandom", O_RDONLY)          = 3
read(3, "\317Y\266\267", 4)             = 4
close(3)                                = 0
geteuid32()                             = 0
getuid32()                              = 0
geteuid32()                             = 0
getrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=1024}) = 0
brk(0)                                  = 0x81c6000
brk(0x81e7000)                          = 0x81e7000
open("/usr/lib/xorg/modules/xgl/libglx.so", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\200\7\1"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=389772, ...}) = 0
mmap2(NULL, 392580, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xa7cd5000
madvise(0xa7cd5000, 392580, MADV_SEQUENTIAL|0x1) = 0
mmap2(0xa7d24000, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4f) = 0xa7d24000
mmap2(0xa7d34000, 3460, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xa7d34000
close(3)                                = 0
open("/usr/lib/xorg/modules/xgl/libglcore.so", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\340\302"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=2300296, ...}) = 0
mmap2(NULL, 2340980, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xa7a99000
madvise(0xa7a99000, 2340980, MADV_SEQUENTIAL|0x1) = 0
mmap2(0xa7cb5000, 81920, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x21b) = 0xa7cb5000
mmap2(0xa7cc9000, 47220, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xa7cc9000
close(3)                                = 0
munmap(0xa7a99000, 2340980)             = 0
write(2, "dlopen: /usr/lib/xorg/modules/xg"..., 90dlopen: /usr/lib/xorg/modules/xgl/libglcore.so: undefined symbol: _swrast_BlitFramebuffer
) = 90
write(2, "\nFatal server error:\n", 21
Fatal server error:
) = 21
write(2, "No GLX modules loaded", 21No GLX modules loaded)   = 21
write(2, "\n", 1
)                       = 1
unlink("")                              = -1 ENOENT (No such file or directory)
open("/usr/lib/xorg/modules/xgl/libglcore.so", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\340\302"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=2300296, ...}) = 0
mmap2(NULL, 2340980, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xa7a99000
madvise(0xa7a99000, 2340980, MADV_SEQUENTIAL|0x1) = 0
mmap2(0xa7cb5000, 81920, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x21b) = 0xa7cb5000
mmap2(0xa7cc9000, 47220, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xa7cc9000
close(3)                                = 0
munmap(0xa7a99000, 2340980)             = 0
write(2, "dlopen: /usr/lib/xorg/modules/xg"..., 90dlopen: /usr/lib/xorg/modules/xgl/libglcore.so: undefined symbol: _swrast_BlitFramebuffer
) = 90
write(2, "\nFatalError re-entered, aborting"..., 33
FatalError re-entered, aborting
) = 33
write(2, "No GLX modules loaded", 21No GLX modules loaded)   = 21
write(2, "\n", 1
)                       = 1
rt_sigprocmask(SIG_UNBLOCK, [ABRT], NULL, 8) = 0
gettid()                                = 3705
tgkill(3705, 3705, SIGABRT)             = 0
--- SIGABRT (Aborted) @ 0 (0) ---
+++ killed by SIGABRT +++
Process 3705 detached


Got it. s_blit.c isn't compiled into libGLcore.la which is added to libglcore.so

Patched. Fixed. Working. Revision 43. ( cd /usr/local/xgl-coffee && svn up )
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Last edited by CoffeeBuzz on Thu Mar 02, 2006 3:35 pm; edited 1 time in total
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Tiger683
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PostPosted: Thu Mar 02, 2006 3:32 pm    Post subject: Reply with quote

hmm, just wanted to say the same thing.... well, anyway, compiling... ;)
EDIT: Thx Coffeeeeee, on my own i forgot the symling :oops:
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PostPosted: Thu Mar 02, 2006 4:20 pm    Post subject: Reply with quote

that should do the trick i hope
thanks for the fast update!

but now an other question :
other ppl experience an hang on cvs when installing glitz ?

mine keeps hanging at glitz/src/wgl/glitz_wgl_pbuffer.c
someone know's whats going on ?

thanks!
skeruno
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PostPosted: Thu Mar 02, 2006 5:09 pm    Post subject: Reply with quote

skeruno wrote:
that should do the trick i hope
thanks for the fast update!

but now an other question :
other ppl experience an hang on cvs when installing glitz ?

mine keeps hanging at glitz/src/wgl/glitz_wgl_pbuffer.c
someone know's whats going on ?

thanks!
skeruno


Did you upgrade your cvs to 2.whatever.13 ? reverting back to 2.whatever.12-r3 solved my checkout proble

Removing -z4 (or lowering it) in the cvs command line found in /usr/portage/eclass/cvs.eclass also works.
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Last edited by CoffeeBuzz on Fri Mar 03, 2006 4:32 am; edited 1 time in total
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PostPosted: Thu Mar 02, 2006 5:11 pm    Post subject: Reply with quote

Hi, (and sorry for my poor english)

I'm using Rev. 43 of CoffeeBuzz overlay, but I can't compile mesa.
I did:
- rm /usr/portage/distfiles/cvs-src/* and rm -rf /var/tmp/portage/{xgl*,mesa*,glitz*,compiz*}
- emerge cairo ( 1.1.1_alpha20060216 )
- emerge glproto ( 1.4.5-r1 )
- emerge mesa
Code:
x86_64-pc-linux-gnu-gcc -c -I. -I../../../include -I../../../include/GL/internal -I../../../src/mesa/main -I../../../src/mesa/glapi -I../../../src/mesa/drivers/dri/common `pkg-config --cflags libdrm` -I/usr/X11R6/include -Wall -Wmissing-prototypes -march=k8 -O2 -pipe -fPIC -m64 -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE -D_GNU_SOURCE -DPTHREADS -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER -DGLX_DIRECT_RENDERING -DHAVE_ALIAS -DDEFAULT_DRIVER_DIR='"/usr/lib64/xorg/modules/dri"' -DXF86VIDMODE -D_REENTRANT -UIN_DRI_DRIVER -DUSE_X86_64_ASM -std=c99 -ffast-math  -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE -D_GNU_SOURCE -DPTHREADS -DUSE_EXTERNAL_DXTN_LIB=1 -DIN_DRI_DRIVER -DGLX_DIRECT_RENDERING -DHAVE_ALIAS -DDEFAULT_DRIVER_DIR='"/usr/lib64/xorg/modules/dri"' -DXF86VIDMODE -D_REENTRANT -UIN_DRI_DRIVER glxcmds.c -o glxcmds.o
glxcmds.c:1726: attention : aucun prototype précédent pour « glXSwapIntervalMESA »
glxcmds.c:1758: attention : aucun prototype précédent pour « glXGetSwapIntervalMESA »
glxcmds.c:1788: attention : aucun prototype précédent pour « glXBeginFrameTrackingMESA »
glxcmds.c:1808: attention : aucun prototype précédent pour « glXEndFrameTrackingMESA »
glxcmds.c:1829: attention : aucun prototype précédent pour « glXGetFrameUsageMESA »
glxcmds.c:1857: attention : aucun prototype précédent pour « glXQueryFrameTrackingMESA »
glxcmds.c:2595: attention : aucun prototype précédent pour « glXBindTexImageEXT »
glxcmds.c: In function `glXBindTexImageEXT':
glxcmds.c:2618: erreur: « X_GLXvop_BindTexImageEXT » non déclaré (première utilisation dans cette fonction)
glxcmds.c:2618: erreur: (Chaque identificateur non déclaré est rapporté une seule fois
glxcmds.c:2618: erreur: pour chaque fonction dans laquelle il apparaît.)
glxcmds.c: At top level:
glxcmds.c:2636: attention : aucun prototype précédent pour « glXReleaseTexImageEXT »
glxcmds.c: In function `glXReleaseTexImageEXT':
glxcmds.c:2659: erreur: « X_GLXvop_ReleaseTexImageEXT » non déclaré (première utilisation dans cette fonction)
make[3]: *** [glxcmds.o] Erreur 1
make[3]: Leaving directory `/var/tmp/portage/mesa-6.5.0_alpha20060301/work/Mesa/src/glx/x11'
make[2]: *** [subdirs] Erreur 1
make[2]: Leaving directory `/var/tmp/portage/mesa-6.5.0_alpha20060301/work/Mesa/src'
make[1]: *** [default] Erreur 1
make[1]: Leaving directory `/var/tmp/portage/mesa-6.5.0_alpha20060301/work/Mesa'
make: *** [linux-dri-x86-64] Erreur 2

!!! ERROR: media-libs/mesa-6.5.0_alpha20060301 failed.


amd64 + nvidia 6600, latest ~ nvidia-glx.
In /etc/make.conf I have VIDEO_CARDS="nvidia"

I went through this thread and the XGLpart2 thread, but can't find a solution.

Any idea ?

EDIT : full error log
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PostPosted: Thu Mar 02, 2006 10:51 pm    Post subject: Reply with quote

hi there

@CoffeeBuzz thanks man that also did the trick for me so far
now hope i can compile xgl pretty soon

greetings skeruno
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PostPosted: Thu Mar 02, 2006 11:34 pm    Post subject: Reply with quote

Same problem as skeruno.

Quote:
Xgl :2 -ac -accel glx:pbuffer -accel xv
dlopen: /usr/lib/xorg/modules/xgl/libglcore.so: undefined symbol: _swrast_BlitFramebuffer

Fatal server error:
No GLX modules loaded
dlopen: /usr/lib/xorg/modules/xgl/libglcore.so: undefined symbol: _swrast_BlitFramebuffer

FatalError re-entered, aborting
No GLX modules loaded


EDIT 1 : I just spotted something : in the portage overlay there is a mesa alpha ebuild, which I didn't unmask (the wiki howto forgot to tell me so...). I'm compiling it right now.

EDIT 2 : I compiled coffee's mesa (rev 43), but that doesn't change anything. Do I have also to rebuild glitz and xgl ?
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marvin rouge
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PostPosted: Sat Mar 04, 2006 12:20 pm    Post subject: Reply with quote

hi,

I solved my Mesa problem (wrong gl headers) using the opengl.eselect patch from bug 109922 (related to amd64, nvidia, and multilib)

+
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PostPosted: Sun Mar 05, 2006 3:08 am    Post subject: Xgl and Nvidia Geforce MX 400 Reply with quote

I'm using Nvidia Geforce MX 400 (64MB) ,Pentium 4 1.7 GHz and 512MB RAM. If I install xgl, will it "very" slow? Can anyone who use this card and have installed xgl tell me about it? Thanks a lot.

PS:Sorry for my poor English. = =
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PostPosted: Sun Mar 05, 2006 5:33 am    Post subject: Reply with quote

Your English is fine.

Have you checked out http://gentoo-wiki.com/HOWTO_XGL yet? There are also some links at the bottom of that page you might want to look through.

J.
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PostPosted: Sun Mar 05, 2006 7:34 am    Post subject: Reply with quote

Thanks for your compliment! :D
My native language is Chinese and I'm learning English now(from school and Gentoo's documents).

Anyway, I've read Gentoo-wiki and searched Gentoo forum(of course), but all they talk about were how to install and configure, not about the performance, and most of them don't use Geforce MX 400. I just worry that if it is slow with MX 400 (I have no time to try it by myself because I'm preparing for the exam to enter college.) It will be thankful if anyone can tell me about it.
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