Desktop environment crashes when working in Intellij IDEA

[Ivan Senin]

Happens sporadically while I'm working on kotlin code in Intellij IDEA (2020.3.2) doing anything: navigating around my code or trying to create a new project.

My setup:
laptop + external monitor (dual monitor mode).
Ubuntu 20.04.2 LTS

You can find the logged errors in the syslog snippet below.

$ apt-cache policy compiz
compiz:
  Installed: 1:0.9.14.1+20.04.20200211-0ubuntu1

$ apt-cache policy unity
unity:
  Installed: 7.5.0+20.04.20200312-0ubuntu1

## syslog output:
```
Mar 10 23:48:26 hud-service[3768]: #033[31mvoid DBusMenuImporter::slotGetLayoutFinished(QDBusPendingCallWatcher*)#033[0m: "No such interface “com.canonical.dbusmenu” on object at path /org/ayatana/bamf/window/115343524"
Mar 10 23:48:44 unity-panel-ser[3515]: menus_destroyed: assertion 'IS_WINDOW_MENU(wm)' failed
Mar 10 23:48:48 hud-service[3768]: #033[31mvoid DBusMenuImporter::slotGetLayoutFinished(QDBusPendingCallWatcher*)#033[0m: "No such interface “com.canonical.dbusmenu” on object at path /org/ayatana/bamf/window/115343534"
Mar 10 23:48:54 compiz[3508]: ERROR 2021-03-10 23:48:54 unity.decoration.shape DecorationsShape.cpp:73 Failed to get shape rectangles
Mar 10 23:48:54 kernel: [68000.270753] compiz[3508]: segfault at 8 ip 00007f7d8705903a sp 00007ffc2f725770 error 4 in libunityshell.so[7f7d86f5d000+345000]
Mar 10 23:48:54 kernel: [68000.270767] Code: 02 00 00 48 89 93 48 02 00 00 48 85 ff 74 1b e8 9c b6 f5 ff 48 8b 7c 24 28 48 85 ff 74 05 e8 8d b6 f5 ff 48 8b 83 40 02 00 00 <48> 8b 50 08 48 39 50 10 0f 84 1c 01 00 00 4c 8b 32 4d 85 f6 0f 84
Mar 10 23:48:54 systemd[2928]: Starting Notification regarding a crash report...
Mar 10 23:48:54 update-notifier-crash[107247]: /usr/bin/whoopsie
Mar 10 23:48:54 systemd[2928]: update-notifier-crash.service: Main process exited, code=exited, status=1/FAILURE
```

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: unity 7.5.0+20.04.20200312-0ubuntu1
ProcVersionSignature: Ubuntu 5.8.0-44.50~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-44-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.capabilities.gpu0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/capabilities/gpu0'
.proc.driver.nvidia.capabilities.mig: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/capabilities/mig'
.proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:01:00.0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.suspend: suspend hibernate resume
.proc.driver.nvidia.suspend_depth: default modeset uvm
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 450.102.04 Tue Dec 29 06:51:23 UTC 2020
 GCC version: gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)
.tmp.unity_support_test.0:

ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity:Unity7:ubuntu
Date: Wed Mar 10 23:56:47 2021
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation UHD Graphics 630 (Mobile) [8086:3e9b] (prog-if 00 [VGA controller])
   Subsystem: Lenovo UHD Graphics 630 (Mobile) [17aa:229f]
 NVIDIA Corporation TU117M [GeForce GTX 1650 Mobile / Max-Q] [10de:1f91] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Lenovo TU117M [GeForce GTX 1650 Mobile / Max-Q] [17aa:229f]
InstallationDate: Installed on 2020-07-15 (238 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: LENOVO 20QVCTO1WW
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.8.0-44-generic root=/dev/mapper/vgubuntu-root ro
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/06/2020
dmi.bios.release: 1.34
dmi.bios.vendor: LENOVO
dmi.bios.version: N2OET47W (1.34 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20QVCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0R32862 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.23
dmi.modalias: dmi:bvnLENOVO:bvrN2OET47W(1.34):bd08/06/2020:br1.34:efr1.23:svnLENOVO:pn20QVCTO1WW:pvrThinkPadX1Extreme2nd:rvnLENOVO:rn20QVCTO1WW:rvrSDK0R32862WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad X1 Extreme 2nd
dmi.product.name: 20QVCTO1WW
dmi.product.sku: LENOVO_MT_20QV_BU_Think_FM_ThinkPad X1 Extreme 2nd
dmi.product.version: ThinkPad X1 Extreme 2nd
dmi.sys.vendor: LENOVO
modified.conffile..etc.apport.crashdb.conf: [modified]
mtime.conffile..etc.apport.crashdb.conf: 2021-03-10T23:34:08.612728
version.compiz: compiz 1:0.9.14.1+20.04.20200211-0ubuntu1
version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 20.2.6-0ubuntu0.20.04.1
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Ivan Senin (ivansenin)]

WORKAROUND:

Just patch your libunityshell.so (for me, located at /usr/lib/x86_64-linux-gnu/compiz/libunityshell.so).
Among symbols of this library find ComputeShapedShadowQuad and change its first instruction into "ret" using a reverse engineering hex editor of your choice.
DISCLAIMER: I did not check the code there in depth, so I cannot guarantee that this solution won't create a memory leak or something else. But for me it did fix the problem.
I actually tried to find source code of DecorationsShape.cpp:73 but failed to do so. Unity 7 seems to be abandoned or something, that's really strange considering I'm using Ubuntu 20 LTS.

[Ivan Senin (ivansenin)]

UPD. I found the sources, so nevermind. sorry, my bad

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.