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[Celsius <878182@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-core

I have Ubuntu 10.04 LTS, 64bits

an update of xserver-common and xserver-xorg-core arrived today that,
once I had restarted my laptop, made compiz crash (and going into
"fallback mode") and no other application using opengl was able to run
(e.g. glxgears). compiz-check was failing too.

After some googling, I found several threads related to the crash report
from compiz, and tried some solution. the only one that worked was
forcing xserver-xorg-core version to 2:1.7.6-2ubuntu7 (lucid) instead of
the latest 2:1.7.6-2ubuntu7.8 (lucid-updates)

After downgrading, everything works fine again (at least compiz,
glxgears)

The error message from compiz (and compiz --replace) is:

    compiz (core) - Fatal: Root visual is not a GL visual
    compiz (core) - Error: Failed to manage screen: 0
    compiz (core) - Fatal: No manageable screens found on display :0.0

    Launching fallback window manager


compiz-check error message was :

    Gathering information about your system...

    Distribution:          Ubuntu 10.04
    Desktop environment:   GNOME
    Graphics chip:         Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
    Driver in use:         intel
    Rendering method:      AIGLX

    Checking if it's possible to run Compiz on your system...

    Checking for texture_from_pixmap...               [FAIL]
    Checking for non power of two support...          [FAIL]
    Checking for composite extension...               [ OK ]
    Checking for FBConfig...                          [FAIL]
    Checking for hardware/setup problems...           [SKIP]

    At least one check had to be skipped:
    Error: Unable to detect maximum 3D texture size


Of course, after downgrading, everything works

lspci -vv for the graphic chipset :

00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
        Subsystem: Dell Device 024f
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin A routed to IRQ 31
        Region 0: Memory at f6c00000 (64-bit, non-prefetchable) [size=4M]
        Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at ef98 [size=8]
        Capabilities: <access denied>
        Kernel driver in use: i915
        Kernel modules: i915

** Affects: xorg-server (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/878182

Title:
  update to xserver-xorg-core 2:1.7.6-2ubuntu7.8_amd64 breaks all opengl
  support (intel chipset)

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