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Hi there Linux Forums! Whenever I run xlock I get this error message after a while: Code: xlock: main/renderbuffer.c:2078: _mesa_add_renderbuffer: Assertion `bufferName == BUFFER_DEPTH || bufferName == BUFFER_STENCIL || fb->Attachment[bufferName].Renderbuffer ...
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  1. #1
    Just Joined! Surak's Avatar
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    [SOLVED] xlock troubles


    Hi there Linux Forums!
    Whenever I run xlock I get this error message after a while:
    Code:
    xlock: main/renderbuffer.c:2078: _mesa_add_renderbuffer: Assertion `bufferName == BUFFER_DEPTH || bufferName == BUFFER_STENCIL || fb->Attachment[bufferName].Renderbuffer == ((void *)0)' failed.
    Aborted
    I have an onboard VIA Technologies, inc. KN400/KM400/P4M800 video card, can any one tell me how to fix this?
    Thanks guys.

  2. #2
    Linux Guru Rubberman's Avatar
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    Sounds like a bug in xlock. It is aborting after detecting a null pointer access. Since it has source file information, it must be built for debugging. Have you customized and/or built any of your X-Windows components (such as xlock)?
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

  3. #3
    Just Joined! Surak's Avatar
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    No, i have all my X stuff through yum, i dont compile/customize critical components.

  4. #4
    Linux Guru Rubberman's Avatar
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    Well xlock isn't part of the xorg package on my system. I can get xlockmore from the rpmforge repository via yum. What distribution/version of Linux and which X server are you running?
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

  5. #5
    Just Joined! Surak's Avatar
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    Fedora 10,
    X.Org X Server 1.5.3
    i dont remember ever compiling or w/e xlock, and it isnt in the repos, it was just there one day, it was probably from one of my DEs/WMs

  6. #6
    Linux Guru Rubberman's Avatar
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    Well, that pretty much confirms the bug diagnosis then. Someone built or installed (probably built since it is in a debuggable state) a version that has a bug in it. In any case, xlock is pretty much deprecated these days. If you want xlock, then you can use xlockmore, which is xlock, but more up-to-date. It's available in the rpmforge repositories. I haven't tried it yet, but their web site is pretty well done.
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

  7. #7
    Just Joined! Surak's Avatar
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    yeah, i got xlock more through rpmfusion, thanks for all your help!

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