Nouveau - Jan 2011 - [Bug 32864] New: wayland "libEGL warning: failed to create DRM screen"

https://bugs.freedesktop.org/show_bug.cgi?id=32864

           Summary: wayland "libEGL warning: failed to create DRM
screen"
           Product: xorg
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: darxus at chaosreigns.com
         QAContact: xorg-team at lists.x.org


Running the wayland compositor used to give output including:

libEGL debug: searching for pipe module nouveau
libEGL debug: loaded /home/darxus/install/lib/egl/pipe_nouveau.so

But now instead of saying it loaded pipe_nouveau.so, it says:

libEGL warning: failed to create DRM screen

Git commit 6a102074bb30e44273e999ee8cdd2afbfbc4e333 works (last before
problem).
Git commit 997f84ff4efb62779a19f6bd0441cbae1b7bad70 has this problem.

I tried adding a bunch of prints to nouveau_drm_screen_create() in
src/gallium/winsys/nouveau/drm/nouveau_drm_winsys.c, none of them printed.

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--- Comment #1 from Darxus <darxus at chaosreigns.com> 2011-01-05 17:30:57
PST ---

https://bugs.freedesktop.org/show_bug.cgi?id=32864

--- Comment #2 from Darxus <darxus at chaosreigns.com> 2011-01-05 17:37:47
PST ---
$ lspci | grep -i vga
01:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 9300 GE]
(rev a1)

Someone else replicated the problem with a nv94 card.

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--- Comment #3 from wucan <canbaby at 21cn.com> 2011-01-05 20:12:23 PST
---
(In reply to comment #2)
> $ lspci | grep -i vga
> 01:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 9300 GE]
> (rev a1)
> 
> Someone else replicated the problem with a nv94 card.
reproduct and confirm this problem with:
01:00.0 VGA compatible controller: nVidia Corporation G98 [GeForce 9300M GS]
(rev a1)

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--- Comment #4 from wucan <canbaby at 21cn.com> 2011-01-06 00:16:24 PST
---
I found, it's in src/gallium/target/egl/egl.c failed to
dlopen("pipe_nouveaus.so", ...).

Who know why dlopen() failed? Since all so files are there.

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--- Comment #5 from Darxus <darxus at chaosreigns.com> 2011-01-06 00:33:53
PST ---
Looks like this was fixed in:

commit 84ebd8e2d7b13cf43069a2b79168cf7a1df02b71
Author: Vinson Lee <vlee at vmware.com>
Date:   Thu Jan 6 00:06:38 2011 -0800

    nvc0: Fix typo of nvc0_mm.c in SConscript.

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--- Comment #6 from Darxus <darxus at chaosreigns.com> 2011-01-06 20:21:11
PST ---
I no-longer believe this is fixed.  84ebd8e2d7b13cf43069a2b79168cf7a1df02b71 is
giving me the same "failed to create DRM screen" error as I had been
getting.
Don't know why I thought it was fixed.

6a102074bb30e44273e999ee8cdd2afbfbc4e333 still works.
997f84ff4efb62779a19f6bd0441cbae1b7bad70 still doesn't work.

This (and my previous report of it working) is on a different card:

$ lspci | grep -i vga
05:00.0 VGA compatible controller: nVidia Corporation G92 [GeForce 8800 GT]
(rev a2)

(The latest commit is also not working:
6d9ca78ef7bf831b9b63f4bda68623cbae627508 )

Also, strace shows pipe_nouveau.so being opened, it just doesn't get
mentioned
in the output.

Full output:

$ ~/wayland/wayland/compositor/compositor 
libEGL debug: EGL search path is /home/darxus/install/lib/egl
libEGL debug: added /home/darxus/install/lib/egl/egl_gallium.so to module array
libEGL debug: added /home/darxus/install/lib/egl/egl_dri2.so to module array
libEGL debug: added /home/darxus/install/lib/egl/egl_glx.so to module array
libEGL debug: dlopen(/home/darxus/install/lib/egl/egl_gallium.so)
libEGL info: use DRM for display 0x5
libEGL debug: searching for pipe module nouveau
libEGL warning: failed to create DRM screen
libEGL debug: EGL user error 0x3001 (EGL_NOT_INITIALIZED) in eglInitialize(no
usable display)

libEGL debug: dlopen(/home/darxus/install/lib/egl/egl_dri2.so)
libEGL debug: EGL user error 0x3003 (EGL_BAD_ALLOC) in DRI2: failed to get
driver name

libEGL debug: dlopen(/home/darxus/install/lib/egl/egl_glx.so)
libEGL debug: EGL user error 0x3001 (EGL_NOT_INITIALIZED) in eglInitialize

failed to initialize display
failed to create compositor

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--- Comment #7 from Darxus <darxus at chaosreigns.com> 2011-01-06 20:22:14
PST ---
Created an attachment (id=41737)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41737)
wayland compositor strace output

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Darxus <darxus at chaosreigns.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #41737|wayland compositor strace   |wayland compositor strace
        description|output                      |output, failing, commit
                   |                            |6d9ca78ef7bf831b9b63f4bda68
                   |                            |623cbae627508 (latest)

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--- Comment #8 from Marcin Slusarz <marcin.slusarz at gmail.com>
2011-01-08 11:49:55 PST ---
if it's still a linking problem running wayland with LD_DEBUG set to
"all"
might help find the root cause

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--- Comment #9 from Darxus <darxus at chaosreigns.com> 2011-01-08 12:52:11
PST ---
The wayland compositor is now starting, but shows up as a completely garbled
apparently random chunk of video memory.  

Output:


$ ~/wayland/wayland/compositor/compositor 
libEGL debug: added /usr/lib/egl/egl_gallium.so to module array
libEGL debug: added /usr/lib/egl/egl_dri2.so to module array
libEGL debug: added /usr/lib/egl/egl_glx.so to module array
libEGL debug: dlopen(/usr/lib/egl/egl_gallium.so)
libEGL info: use DRM for display 0x5
libEGL debug: searching for pipe module nouveau
libEGL debug: loaded /usr/lib/egl/pipe_nouveau.so
libEGL debug: Failed to get KMS resources.  Disable modeset.
libEGL debug: the best driver is Gallium (score 100)
libEGL debug: searching for st module GLESv2
libEGL debug: loaded /usr/lib/egl/st_GLESv2.so
nv50_screen_get_param:162 -  Unknown PIPE_CAP 11
XDG_RUNTIME_DIR not set, falling back to .
using socket ./wayland-0
Mesa: User error: GL_INVALID_FRAMEBUFFER_OPERATION in glClear(incomplete
framebuffer)

Mesa git commit: 6a102074bb30e44273e999ee8cdd2afbfbc4e333

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--- Comment #10 from Darxus <darxus at chaosreigns.com> 2011-01-08
12:57:36 PST ---
Ignore my last comment, it shows I was loading all the wrong libraries, instead
of from ~/install/

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--- Comment #11 from Darxus <darxus at chaosreigns.com> 2011-01-08
13:17:04 PST ---
Created an attachment (id=41777)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=41777)
Output of "wayland/compositor/compositor > ld_debug.all.txt
2>&1" with
LD_DEBUG=all, for mesa commit 90e29afcb62411b69d57dac76fe89c69c9936ed6

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--- Comment #12 from Marcin Slusarz <marcin.slusarz at gmail.com>
2011-01-08 14:32:23 PST ---
/home/darxus/install/lib/egl/pipe_nouveau.so: error: symbol lookup error:
undefined symbol: nvc0_screen_create (fatal)

These commands should fix it:

make distclean
./autogen.sh
./configure ...
make

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--- Comment #13 from Darxus <darxus at chaosreigns.com> 2011-01-08
15:03:14 PST ---
Wiped my entire build and install directories, recloned and built everything,
same error.

Still getting:

     31798:    /home/darxus/install/lib/egl/pipe_nouveau.so: error: symbol
lookup error: undefined symbol: nvc0_screen_create (fatal)

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Marcin Slusarz <marcin.slusarz at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #14 from Marcin Slusarz <marcin.slusarz at gmail.com>
2011-01-08 15:55:14 PST ---
fixed by commit 69191d41231b95af7565e32393c5487163859d7e "targets/egl: add
libnvc0.a to nouveau libs"

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--- Comment #15 from Darxus <darxus at chaosreigns.com> 2011-01-08
16:06:08 PST ---
Confirmed, works with commit 69191d41231b95af7565e32393c5487163859d7e

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