Soucis d'affichage sous Kde

Bonjour au forum
Et bien voila j'ai un soucis d'affichage..
Petit rappel je suis sous Kde Plasma 5.15:1, noyau 4.19 et carte Nvidia GeForce510, module Nvidia 390 installé.
Des que j'ouvre une deuxième fenêtre ..l’arrière plan, le bureau donc devient noir pas bandes et se "déchire" si je bouge cette fenêtre
J'ai tenté divers option..désactiver tous les effets de bureaux..revenir au driver linux, enlever les diverses transparences etc....! Rien n'y fait

Si vous avez des idées..je suis preneur.
Merci d'avance

tu peux nous faire un retour de

inxi -Fxxxz

Voila

[didiers@didier-pc ~]$ inxi -Fxxxz
System:
  Host: didier-pc Kernel: 4.19.24-1-MANJARO x86_64 bits: 64 compiler: gcc 
  v: 8.2.1 Desktop: KDE Plasma 5.15.1 tk: Qt 5.12.1 wm: kwin_x11 dm: SDDM 
  Distro: Manjaro Linux 
Machine:
  Type: Desktop System: Packard Bell product: imedia S3840 v: P01-B2 
  serial: <filter> Chassis: type: 3 serial: <filter> 
  Mobo: Packard Bell model: imedia S3840 serial: <filter> 
  BIOS: American Megatrends v: P01-B2 date: 08/16/2011 
CPU:
  Topology: Quad Core model: Intel Core i5-2320 bits: 64 type: MCP 
  arch: Sandy Bridge rev: 7 L2 cache: 6144 KiB 
  flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 23960 
  Speed: 1597 MHz min/max: 1600/3300 MHz Core speeds (MHz): 1: 1766 2: 1771 
  3: 1741 4: 1759 
Graphics:
  Device-1: NVIDIA GF119 [GeForce 510] vendor: PC Partner Limited / Sapphire 
  driver: nvidia v: 390.87 bus ID: 01:00.0 chip ID: 10de:1042 
  Display: x11 server: X.Org 1.20.3 driver: nvidia compositor: kwin_x11 
  tty: N/A 
  OpenGL: renderer: GeForce 510/PCIe/SSE2 v: 4.6.0 NVIDIA 390.87 
  direct render: Yes 
Audio:
  Device-1: Intel 6 Series/C200 Series Family High Definition Audio 
  vendor: Acer Incorporated ALI driver: snd_hda_intel v: kernel 
  bus ID: 00:1b.0 chip ID: 8086:1c20 
  Device-2: NVIDIA GF119 HDMI Audio vendor: PC Partner Limited / Sapphire 
  driver: snd_hda_intel v: kernel bus ID: 01:00.1 chip ID: 10de:0e08 
  Device-3: Logitech Labtec Webcam Pro type: USB 
  driver: gspca_zc3xx,snd-usb-audio bus ID: 2-1.3:3 chip ID: 046d:08a2 
  Sound Server: ALSA v: k4.19.24-1-MANJARO 
Network:
  Device-1: Intel 82579V Gigabit Network vendor: Acer Incorporated ALI 
  driver: e1000e v: 3.2.6-k port: f040 bus ID: 00:19.0 chip ID: 8086:1503 
  IF: eno1 state: up speed: 1000 Mbps duplex: full mac: <filter> 
Drives:
  Local Storage: total: 1.82 TiB used: 18.07 GiB (1.0%) 
  ID-1: /dev/sda vendor: Western Digital model: WD20EARX-22PASB0 
  size: 1.82 TiB speed: 3.0 Gb/s serial: <filter> rev: AB51 scheme: MBR 
  ID-2: /dev/sdb type: USB vendor: Kingston model: DataTraveler 2.0 
  size: 1.90 GiB serial: <filter> rev: 1.00 scheme: MBR 
Partition:
  ID-1: / size: 886.90 GiB used: 16.94 GiB (1.9%) fs: ext4 dev: /dev/sda5 
  ID-2: swap-1 size: 7.98 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/sda2 
Sensors:
  System Temperatures: cpu: 47.0 C mobo: N/A gpu: nvidia temp: 65 C 
  Fan Speeds (RPM): N/A gpu: nvidia fan: 30% 
Info:
  Processes: 211 Uptime: 2d 33m Memory: 7.77 GiB used: 3.78 GiB (48.6%) 
  Init: systemd v: 241 Compilers: gcc: 8.2.1 Shell: bash v: 5.0.0 
  running in: konsole inxi: 3.0.30 
[didiers@didier-pc ~]$

[/moderation

administration/modération

tu as été voir dans la log s'il y a des erreurs

sudo journalctl -b0 -p4

Merci de te pencher sur mon soucis, concernant le log pas mal erreurs de types:
09/03/2019 21:06 kdesu qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 1024, resource id: 41591445, major code: 40 (TranslateCoords), minor code: 0

[didiers@didier-pc ~]$ sudo journalctl -b0 -p4
[sudo] Mot de passe de didiers : 
-- Logs begin at Sun 2018-08-19 19:20:42 CEST, end at Sat 2019-03-09 21:02:56 CET. --
mars 07 18:36:05 didier-pc kernel: ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
mars 07 18:36:05 didier-pc kernel: ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)
mars 07 18:36:05 didier-pc kernel: TSC synchronization [CPU#0 -> CPU#1]:
mars 07 18:36:05 didier-pc kernel: Measured 5150605398 cycles TSC warp between CPUs, turning off TSC clock.
mars 07 18:36:05 didier-pc kernel:  #2 #3
mars 07 18:36:05 didier-pc kernel: pci 0000:00:01.0: ASPM: current common clock configuration is broken, reconfiguring
mars 07 18:36:05 didier-pc kernel: Unstable clock detected, switching default tracing clock to "global"
                                   If you want to keep using the local clock, then add:
                                     "trace_clock=local"
                                   on the kernel command line
mars 07 18:36:05 didier-pc kernel: i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp
mars 07 18:36:15 didier-pc kernel: nvidia: loading out-of-tree module taints kernel.
mars 07 18:36:15 didier-pc kernel: nvidia: module license 'NVIDIA' taints kernel.
mars 07 18:36:15 didier-pc kernel: Disabling lock debugging due to kernel taint
mars 07 18:36:15 didier-pc kernel: NVRM: loading NVIDIA UNIX x86_64 Kernel Module  390.87  Tue Aug 21 12:33:05 PDT 2018 (using threaded interrupts)
mars 07 18:36:15 didier-pc kernel: ACPI Warning: SystemIO range 0x0000000000000530-0x000000000000053F conflicts with OpRegion 0x000000000000053B-0x000000000000053B (\LLED) (20180810/ut>
mars 07 18:36:15 didier-pc systemd-udevd[258]: Process '/usr/bin/alsactl restore 2' failed with exit code 99.
mars 07 18:36:15 didier-pc systemd-udevd[260]: Process '/usr/bin/alsactl restore 1' failed with exit code 99.
mars 07 18:36:15 didier-pc systemd-udevd[249]: Process '/usr/bin/alsactl restore 0' failed with exit code 99.
mars 07 18:36:21 didier-pc avahi-daemon[357]: Failed to parse address 'fe80::a3e:5dff:feda:3668%eno1', ignoring.
mars 07 18:36:22 didier-pc kernel: kauditd_printk_skb: 11 callbacks suppressed
mars 07 18:36:26 didier-pc colord[486]: failed to get session [pid 371]: Aucune donnée disponible
mars 07 18:36:26 didier-pc colord[486]: failed to get session [pid 371]: Aucune donnée disponible
mars 07 18:36:28 didier-pc kernel: resource sanity check: requesting [mem 0x000c0000-0x000fffff], which spans more than PCI Bus 0000:00 [mem 0x000c0000-0x000dffff window]
mars 07 18:36:28 didier-pc kernel: caller _nv001169rm+0xe3/0x1d0 [nvidia] mapping multiple BARs
mars 07 18:36:35 didier-pc sddm-greeter[529]: QObject: Cannot create children for a parent that is in a different thread.
                                              (Parent is QGuiApplication(0x7ffe9135f800), parent's thread is QThread(0x5593f4b100f0), current thread is QThread(0x5593f4b74360)
mars 07 18:36:35 didier-pc sddm-greeter[529]: QObject: Cannot create children for a parent that is in a different thread.
                                              (Parent is QGuiApplication(0x7ffe9135f800), parent's thread is QThread(0x5593f4b100f0), current thread is QThread(0x5593f4b74360)
mars 07 18:36:35 didier-pc sddm-greeter[529]: QObject: Cannot create children for a parent that is in a different thread.
                                              (Parent is QGuiApplication(0x7ffe9135f800), parent's thread is QThread(0x5593f4b100f0), current thread is QThread(0x5593f4b74360)
mars 07 18:36:35 didier-pc sddm-greeter[529]: QObject::installEventFilter(): Cannot filter events for objects in a different thread.
mars 07 18:36:40 didier-pc sddm-greeter[529]: file:///usr/share/sddm/themes/breath/components/VirtualKeyboard.qml:22:1: Type InputPanel unavailable
mars 07 18:36:40 didier-pc sddm-greeter[529]: qrc:/QtQuick/VirtualKeyboard/content/InputPanel.qml:125:5: Type Keyboard unavailable
mars 07 18:36:40 didier-pc sddm-greeter[529]: qrc:/QtQuick/VirtualKeyboard/content/components/Keyboard.qml:36:1: module "QtQuick.VirtualKeyboard.Plugins" is not installed
mars 07 18:36:40 didier-pc sddm-greeter[529]: libpng warning: iCCP: known incorrect sRGB profile
mars 07 18:36:41 didier-pc sddm-greeter[529]: QDBusConnection: name 'org.freedesktop.UDisks2' had owner '' but we thought it was ':1.28'
mars 07 18:36:58 didier-pc kapplymousetheme[604]: qt.core.logging: Ignoring malformed logging rule: '’*=false’'
mars 07 18:36:59 didier-pc ksplashqml[608]: qt.core.logging: Ignoring malformed logging rule: '’*=false’'
mars 07 18:37:02 didier-pc klauncher[627]: qt.core.logging: Ignoring malformed logging rule: '’*=false’'
mars 07 18:37:02 didier-pc klauncher[627]: Connecting to deprecated signal QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString)
mars 07 18:37:02 didier-pc kdeinit5[630]: qt.core.logging: Ignoring malformed logging rule: '’*=false’'

Bonjour,
Tour est rentré das l'ordre depuis la dernière mise à jour..
Je passe en résolu.
Merci