Sometimes every time I log in to Xubuntu 16.04, sometimes every other time, the first thing I get are 2 dialogs saying there has been a problem and 2 requests for permission to submit a problem report. I always give permission, and after I do, everything seems to work fine. Every time I've ever looked at the details, I find something that says the problem report is damaged and cannot be processed, and refers to an invalid core dump with a warning referencing /tmp/apport_core. This has been going on for over a year, but doesn't seem to be a common problem, since I find only 2 similar bug references. Bugs #1424864 and #1507461 appear to be giving a similar but not identical error message, and the symptoms of neither match mine.
Using instructions from bug #1424864, I tried apport-collect -p xorg 1424864, and was told to open another bug report.
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ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: XFCE
DistUpgraded: Fresh install
DistroCodename: xenial
DistroRelease: Ubuntu 16.04
DistroVariant: ubuntu
DkmsStatus:
virtualbox, 5.0.40, 4.4.0-92-generic, x86_64: installed
virtualbox, 5.0.40, 4.4.0-93-generic, x86_64: installed
GraphicsCard:
Advanced Micro Devices, Inc. [AMD/ATI] Cedar [Radeon HD 5000/6000/7350/8350 Series] [1002:68f9] (prog-if 00 [VGA controller])
Subsystem: Hightech Information System Ltd. Cedar [Radeon HD 5000/6000/7350/8350 Series] [1787:2291]
InstallationDate: Installed on 2016-07-02 (422 days ago)
InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Dell Inc. OptiPlex GX620
Package: xorg 1:7.7+13ubuntu3
PackageArchitecture: amd64
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-93-generic root=UUID=9b3768b1-7ec8-4d00-8047-4e66b6d7c008 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-93.116-generic 4.4.79
Tags: xenial ubuntu
Uname: Linux 4.4.0-93-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 11/30/2006
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.name: 0PY423
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA11:bd11/30/2006:svnDellInc.:pnOptiPlexGX620:pvr:rvnDellInc.:rn0PY423:rvr:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex GX620
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.76-1~ubuntu16.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.0.7-0ubuntu0.16.04.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 17.0.7-0ubuntu0.16.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.18.4-0ubuntu0.3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1.2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
apport information