Public bug reported:
I got this crash report but I don't know what exactly triggered it. I'm
willing to provide more info when needed.
ProblemType: Crash
DistroRelease: Ubuntu 20.10
Package: xserver-xorg-core 2:1.20.8-2ubuntu6
ProcVersionSignature: Ubuntu 5.8.0-18.19-generic 5.8.4
Uname: Linux 5.8.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu45
Architecture: amd64
AssertionMessage: Xorg: ../../../../../../hw/xfree86/common/xf86Helper.c:1743:
xf86ScreenToScrn: Assertion `pScreen->myNum < xf86NumScreens' failed.
BootLog: Error: [Errno 13] Keine Berechtigung: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read
kernel buffer failed: Operation not permitted
Date: Wed Sep 16 23:19:51 2020
DistUpgraded: Fresh install
DistroCodename: groovy
DistroVariant: ubuntu
ExecutablePath: /usr/lib/xorg/Xorg
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA
controller])
Subsystem: Lenovo UHD Graphics 620 [17aa:506a]
InstallationDate: Installed on 2020-09-16 (0 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Alpha amd64 (20200910)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 5986:2113 Acer, Inc SunplusIT Integrated Camera
Bus 001 Device 002: ID 0461:4e57 Primax Electronics, Ltd HID compliant device
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 20LTS01800
ProcCmdline: /usr/lib/xorg/Xorg vt2 -displayfd 3 -auth
/run/user/1000/gdm/Xauthority -nolisten tcp -background none -noreset -keeptty
-novtswitch -verbose 3
ProcEnviron:
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-18-generic
root=UUID=301ac90f-9a29-425d-9b75-b6b2a43bf00a ro quiet splash vt.handoff=7
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
__GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
__GI_abort () at abort.c:79
__assert_fail_base (fmt=0x7fa38d729588 "%s%s%s:%u: %s%sAssertion `%s'
failed.\n%n", assertion=0x55dc8d338b00 "pScreen->myNum < xf86NumScreens",
file=0x55dc8d338a90 "../../../../../../hw/xfree86/common/xf86Helper.c",
line=1743, function=<optimized out>) at assert.c:92
__GI___assert_fail (assertion=0x55dc8d338b00 "pScreen->myNum <
xf86NumScreens", file=0x55dc8d338a90
"../../../../../../hw/xfree86/common/xf86Helper.c", line=1743,
function=0x55dc8d338d20 "xf86ScreenToScrn") at assert.c:101
xf86ScreenToScrn ()
Title: Xorg assert failure: Xorg:
../../../../../../hw/xfree86/common/xf86Helper.c:1743: xf86ScreenToScrn:
Assertion `pScreen->myNum < xf86NumScreens' failed.
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
dmi.bios.date: 12/18/2019
dmi.bios.release: 1.37
dmi.bios.vendor: LENOVO
dmi.bios.version: R0QET60W (1.37 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20LTS01800
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.37
dmi.modalias:
dmi:bvnLENOVO:bvrR0QET60W(1.37):bd12/18/2019:br1.37:efr1.37:svnLENOVO:pn20LTS01800:pvrThinkPadL480:rvnLENOVO:rn20LTS01800:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad L480
dmi.product.name: 20LTS01800
dmi.product.sku: LENOVO_MT_20LT_BU_Think_FM_ThinkPad L480
dmi.product.version: ThinkPad L480
dmi.sys.vendor: LENOVO
separator:
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.102-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 20.1.5-1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200714-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
** Affects: xorg-server (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-crash groovy need-amd64-retrace single-occurrence ubuntu
wayland-session
** Information type changed from Private to Public
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https://bugs.launchpad.net/bugs/1895897
Title:
Xorg assert failure: Xorg:
../../../../../../hw/xfree86/common/xf86Helper.c:1743:
xf86ScreenToScrn: Assertion `pScreen->myNum < xf86NumScreens' failed.
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