** Changed in: xorg-server (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1776447

Title:
  Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to
  crash

Status in X.Org X server:
  Confirmed
Status in xorg-server package in Ubuntu:
  Confirmed

Bug description:
  There's already an upstream bug report here:

  https://bugs.freedesktop.org/show_bug.cgi?id=99555

  Basically, with Option "IndirectGLX" "True" and
  LIBGL_ALWAYS_INDIRECT=1 I get immediate crashes e.g. with glxgear:

  steved@xubuntu:~$ LIBGL_ALWAYS_INDIRECT=true glxgears 
  Running synchronized to the vertical refresh.  The framerate should be
  approximately the same as the monitor refresh rate.
  X Error of failed request:  255
    Major opcode of failed request:  155 (GLX)
    Minor opcode of failed request:  1 (X_GLXRender)
    Serial number of failed request:  42
    Current serial number in output stream:  936

  I am trying to run what is effectively a traditional X Terminal, but
  as the hardware I am using has a 3D accelerated chipset it seems
  sensible to try to use it..

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: xserver-xorg-core 2:1.19.6-1ubuntu4
  ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
  Uname: Linux 4.15.0-22-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.1
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  Date: Tue Jun 12 10:09:30 2018
  DistUpgraded: Fresh install
  DistroCodename: bionic
  DistroVariant: ubuntu
  DkmsStatus:
   rtl8812au, 4.3.8.12175.20140902+dfsg, 4.15.0-22-generic, x86_64: installed
   rtl8812au, 4.3.8.12175.20140902+dfsg, 4.15.0-23-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Device [8086:5a85] (rev 0b) (prog-if 00 [VGA controller])
     Subsystem: Intel Corporation Device [8086:2212]
  InstallationDate: Installed on 2018-05-31 (11 days ago)
  InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64 
(20180426)
  MachineType: AZW S I
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-22-generic 
root=/dev/mapper/xubuntu--vg-root ro noresume
  SourcePackage: xorg-server
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/18/2017
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 00.12
  dmi.board.asset.tag: Default string
  dmi.board.name: AB1
  dmi.board.vendor: IP3 Tech
  dmi.board.version: Default string
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 35
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr00.12:bd12/18/2017:svnAZW:pnSI:pvrDefaultstring:rvnIP3Tech:rnAB1:rvrDefaultstring:cvnDefaultstring:ct35:cvrDefaultstring:
  dmi.product.family: Mini PC
  dmi.product.name: S I
  dmi.product.version: Default string
  dmi.sys.vendor: AZW
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.91-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.0~rc5-1ubuntu1
  version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.0~rc5-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20171229-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2

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