[nvidia] Display glitches when showing context menu

[gabriele]

I am using Android Studio to develop Applications. When i have lots of windows opened and i try to open a context menu or write code, it shows a frame of some applications that are below the current window. In the video it is more clear. I don't know if this is a problem related to Ubuntu or Android Studio but it is very noisy. In this case it is clear that the frame shown belongs to the Arduino window that is open under it. Sometimes i can see frames of my wallpaper (when i don't have any window under it) or others. This problem doesn't happen with other programs (for now).

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
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] È una directory: '/proc/driver/nvidia/capabilities/gpu0'
.proc.driver.nvidia.capabilities.mig: Error: [Errno 21] È una directory: '/proc/driver/nvidia/capabilities/mig'
.proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] È una 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 460.39 Thu Jan 21 21:54:06 UTC 2021
 GCC version: gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
BootLog: Error: [Errno 13] Permesso negato: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 11 13:07:11 2021
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus:
 nvidia, 460.39, 5.8.0-43-generic, x86_64: installed
 nvidia, 460.39, 5.8.0-44-generic, x86_64: installed
 virtualbox, 6.1.16, 5.8.0-44-generic, x86_64: installed
GraphicsCard:
 NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Micro-Star International Co., Ltd. [MSI] GP104 [GeForce GTX 1080] [1462:3362]
InstallationDate: Installed on 2021-01-17 (52 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: Micro-Star International Co., Ltd. MS-7B45
ProcEnviron:
 LANGUAGE=it
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-44-generic root=UUID=34f5f1d0-f244-447f-8b6b-1ec5c14fe8f6 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/05/2020
dmi.bios.release: 5.12
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: A.B0
dmi.board.asset.tag: Default string
dmi.board.name: Z370 GAMING PRO CARBON (MS-7B45)
dmi.board.vendor: Micro-Star International Co., Ltd.
dmi.board.version: 2.0
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Micro-Star International Co., Ltd.
dmi.chassis.version: 2.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrA.B0:bd06/05/2020:br5.12:svnMicro-StarInternationalCo.,Ltd.:pnMS-7B45:pvr2.0:rvnMicro-StarInternationalCo.,Ltd.:rnZ370GAMINGPROCARBON(MS-7B45):rvr2.0:cvnMicro-StarInternationalCo.,Ltd.:ct3:cvr2.0:
dmi.product.family: Default string
dmi.product.name: MS-7B45
dmi.product.sku: Default string
dmi.product.version: 2.0
dmi.sys.vendor: Micro-Star International Co., Ltd.
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 N/A
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

[Daniel van Vugt (vanvugt)]

I've occasionally seen the same problem in multiple compositors with multiple different GPUs over the past 10 years. This seems like some kind of Xorg compositing race/failure.