Bug 24590

Summary:	networked glx returns "Error: couldn't find RGB GLX visual or fbconfig" against older servers
Product:	Mesa	Reporter:	elupus
Component:	GLX	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED DUPLICATE	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	medium	CC:	bgamari
Version:	git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description elupus 2009-10-17 04:32:31 UTC

After upgrading to Ubuntu Jaunty 9.04 from Hardy remote glx rendering (over ssh or just network) against older servers is not working anymore. This is still a problem in current git (or atleast in current xorg-edgers repo)

I've tested against two X servers, verified from other sources:
X-Win32
Exceed (third party that I can't be 100% on it's validity)
Mac OSX Leopard X11 Server

All of which works fine on the same machine when rebooted into Hardy using older xorg stack

glxinfo outputs:
> name of display: localhost:10.0
> Xlib: extension "Generic Event Extension" missing on display "localhost:10.0".
> Error: couldn't find RGB GLX visual or fbconfig

xdpyinfo outputs that i have SGI-GLX and GLX extension.

I suspect that newer glx client side libs must be needing something not provided by the older servers.

I've reported this bug on launchpad "https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/384001" where also logs are available about the issue.

Though I'd take it upstream since that bug report seems to be stalled.

Comment 1 elupus 2010-01-15 07:01:57 UTC

Thought i'd just mention that same bug occurs with nvidia binary drivers as x server, and jaunty/karmic as client.

I've mentioned it to nvidia, but since the bug is in the client, i suspect the best they can do is work around it for their own server.

Comment 2 Jeremy Huddleston Sequoia 2011-10-06 10:46:16 UTC


*** This bug has been marked as a duplicate of bug 24226 ***

Comment 3 elupus 2011-10-11 13:39:20 UTC

I don't agree that it's a duplicate of that issue. LIBGL_ALWAYS_INDIRECT=1 glxinfo  still doesn't work with a XWin32 server on a Ubuntu Maveric at least.

Comment 4 elupus 2011-10-11 13:41:58 UTC

xdpyinfo:

name of display:    localhost:10.0
version number:    11.0
vendor string:    StarNet Communications Corp.
vendor release number:    9100
maximum request size:  16777212 bytes
motion buffer size:  256
bitmap unit, bit order, padding:    32, LSBFirst, 32
image byte order:    LSBFirst
number of supported pixmap formats:    7
supported pixmap formats:
    depth 1, bits_per_pixel 1, scanline_pad 32
    depth 4, bits_per_pixel 8, scanline_pad 32
    depth 8, bits_per_pixel 8, scanline_pad 32
    depth 15, bits_per_pixel 16, scanline_pad 32
    depth 16, bits_per_pixel 16, scanline_pad 32
    depth 24, bits_per_pixel 32, scanline_pad 32
    depth 32, bits_per_pixel 32, scanline_pad 32
keycode range:    minimum 8, maximum 255
focus:  PointerRoot
number of extensions:    21
    BIG-REQUESTS
    DAMAGE
    DEC-XTRAP
    Extended-Visual-Information
    GLX
    MIT-SUNDRY-NONSTANDARD
    RANDR
    RENDER
    SECURITY
    SGI-GLX
    SHAPE
    SYNC
    TOG-CUP
    Windows-WM
    X-Resource
    XC-MISC
    XFIXES
    XFree86-Bigfont
    XInputExtension
    XKEYBOARD
    XTEST
default screen number:    0
number of screens:    1

screen #0:
  dimensions:    1338x1050 pixels (354x278 millimeters)
  resolution:    96x96 dots per inch
  depths (7):    24, 8, 1, 4, 15, 16, 32
  root window id:    0x46
  depth of root window:    24 planes
  number of colormaps:    minimum 1, maximum 1
  default colormap:    0x20
  default number of colormap cells:    256
  preallocated pixels:    black 0, white 16777215
  options:    backing-store NO, save-unders NO
  largest cursor:    32x32
  current input event mask:    0x180000
    SubstructureNotifyMask   SubstructureRedirectMask 
  number of visuals:    4
  default visual id:  0x23
  visual:
    visual id:    0x23
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x24
    class:    TrueColor
    depth:    24 planes
    available colormap entries:    256 per subfield
    red, green, blue masks:    0xff0000, 0xff00, 0xff
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x25
    class:    PseudoColor
    depth:    8 planes
    available colormap entries:    256
    red, green, blue masks:    0x0, 0x0, 0x0
    significant bits in color specification:    8 bits
  visual:
    visual id:    0x26
    class:    PseudoColor
    depth:    8 planes
    available colormap entries:    256
    red, green, blue masks:    0x0, 0x0, 0x0
    significant bits in color specification:    8 bits

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