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Old 07-28-06, 12:12 PM   #1
blekenbleu
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Default rdesktop requires glx??

migrated from FC4 with 1.0.8178

linux 2.6.17-1.2157_FC5smp
xorg-x11-apps-7.0-1
NVIDIA-Linux-x86-1.0-8762-pkg1.run + NVIDIA_kernel-1.0-8762-U072006.diff.txt
Quadro FX 4500
Xinerama, dual Dell 3007WFP 2560x1600
rdesktop-1.4.1-3.2.1

Without glx:

% which rdesktop
/usr/bin/rdesktop
% rdesktop labxp
X Error of failed request: BadValue (integer parameter out of range for
operation)
Major opcode of failed request: 78 (X_CreateColormap)
Value in failed request: 0x0
Serial number of failed request: 7
Current serial number in output stream: 8

.. but rdesktop works ok with Load "glx" in Section "Module" ..
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Old 07-28-06, 01:03 PM   #2
Lithorus
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Default Re: rdesktop requires glx??

You should talk to the rdesktop developers instead. Glx is not anything nvidia specific.
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Old 07-28-06, 01:33 PM   #3
blekenbleu
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Default Re: rdesktop requires glx??

Quote:
Originally Posted by Lithorus
You should talk to the rdesktop developers instead. Glx is not anything nvidia specific.
I have not tested extensively,
but this appears to be associated with the latest version of nVidia's binary driver
and perhaps then only with Xinerama. For example,
I used with FC4 rdesktop for over a year with NVidia's 1.0.8178 driver,
and throwing the same FC5 rdesktop (1.4.1-3.2.1) to another
non-nVidia, non-glx Xinerama X server does not manifest this problem.

The main reason we thought to try glx was that google hits for that error message
seem most often associated with GL apps.
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Old 07-28-06, 04:05 PM   #4
AaronP
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Default Re: rdesktop requires glx??

XCreateColormap failing with BadValue when Xinerama is enabled and GLX is not loaded is a known bug (bug 240536). For now, the simplest workaround is simply to load GLX.
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Old 01-10-07, 06:15 PM   #5
Mr. Sinister
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Default Re: rdesktop requires glx??

I started getting the same error with rdesktop when I added xinerama support to my xorg.conf file. I have glx loaded, my Xorg.0.log file says:
Code:
(II) LoadModule: "glx"
(II) Loading /usr/lib/xorg/modules/extensions/libglx.so
(II) Module glx: vendor="NVIDIA Corporation"
        compiled for 4.0.2, module version = 1.0.9746
        Module class: X.Org Server Extension
        ABI class: X.Org Server Extension, version 0.1
(II) Loading extension GLX
Is there a glx/xinerama bug, or am I missing something?
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Old 01-10-07, 06:19 PM   #6
netllama
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Default Re: rdesktop requires glx??

This is the same bug that Aaron noted earlier.
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Old 01-10-07, 07:32 PM   #7
Mr. Sinister
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Default Re: rdesktop requires glx??

So why am I seeing it with glx loaded? Or am I mistaken in my belief that I have glx loaded?
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Old 01-10-07, 08:09 PM   #8
AaronP
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Default Re: rdesktop requires glx??

Make sure Composite is disabled.
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Old 01-12-07, 01:22 PM   #9
Mr. Sinister
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Default Re: rdesktop requires glx??

Quote:
Originally Posted by AaronP
Make sure Composite is disabled.
That did it. Thanks.
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Old 02-09-07, 12:30 PM   #10
Vincas
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Default Re: rdesktop requires glx??

I tried with composite disabled, and I get the same error. Except the error occurs when I run glxgears or wine.
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