[PLASMA 5] Screen becomes corrupt after waking up from sleep

[rbaker91]

Hello

I've been having a problem with my install.
Whenever the computer goes into sleep the screen becomes corrupt after it wakes up, and although I can move the mouse all the inputs I make don't change anything on the screen. Only the mouse pointer updates.
Sometimes the computer will also become unresponsive altogether, not even capslock or numlock work.

This is an issue that I haven't encountered on any other OS.

inxi -Fxxxz

System:    Kernel: 5.4.0-40-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: KDE Plasma 5.18.5 tk: Qt 5.12.8 
         wm: kwin_x11 dm: SDDM Distro: Ubuntu 20.04 LTS (Focal Fossa) 
Machine:   Type: Desktop Mobo: ASRock model: B450M Steel Legend serial: <filter> UEFI: American Megatrends v: P2.90 
         date: 11/27/2019 
Battery:   Device-1: hidpp_battery_0 model: Logitech Wireless Mouse M510 serial: <filter> charge: 55% (should be ignored) 
         rechargeable: yes status: Discharging 
CPU:       Topology: 6-Core model: AMD Ryzen 5 3600X bits: 64 type: MT MCP arch: Zen L2 cache: 3072 KiB 
         flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm bogomips: 91032 
         Speed: 2195 MHz min/max: 2200/3800 MHz boost: enabled Core speeds (MHz): 1: 2195 2: 2196 3: 2157 4: 2161 5: 2196 
         6: 2215 7: 2184 8: 2174 9: 2196 10: 2196 11: 2196 12: 2205 
Graphics:  Device-1: Advanced Micro Devices [AMD/ATI] Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] vendor: ASUSTeK 
         driver: amdgpu v: kernel bus ID: 07:00.0 chip ID: 1002:67df 
         Display: x11 server: X.Org 1.20.8 driver: amdgpu FAILED: ati unloaded: fbdev,modesetting,vesa compositor: kwin_x11 
         resolution: 1920x1080~60Hz, 1920x1080~60Hz 
         OpenGL: renderer: Radeon RX 580 Series (POLARIS10 DRM 3.35.0 5.4.0-40-generic LLVM 10.0.0) v: 4.6 Mesa 20.0.8 
         direct render: Yes 
Audio:     Device-1: AMD Ellesmere HDMI Audio [Radeon RX 470/480 / 570/580/590] vendor: ASUSTeK driver: snd_hda_intel 
         v: kernel bus ID: 07:00.1 chip ID: 1002:aaf0 
         Device-2: Advanced Micro Devices [AMD] Starship/Matisse HD Audio vendor: ASRock driver: snd_hda_intel v: kernel 
         bus ID: 09:00.4 chip ID: 1022:1487 
         Device-3: Licensed by Sony Entertainment America Rocksmith Guitar Adapter type: USB 
         driver: hid-generic,snd-usb-audio,usbhid bus ID: 1-2:2 chip ID: 12ba:00ff 
         Device-4: Logitech HD Pro Webcam C920 type: USB driver: snd-usb-audio,uvcvideo bus ID: 3-1:2 chip ID: 046d:082d 
         serial: <filter> 
         Sound Server: ALSA v: k5.4.0-40-generic 
Network:   Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: ASRock driver: r8169 v: kernel port: f000 
         bus ID: 05:00.0 chip ID: 10ec:8168 
         IF: enp5s0 state: up speed: 1000 Mbps duplex: full mac: <filter> 
Drives:    Local Storage: total: 3.87 TiB used: 1.58 TiB (40.9%) 
         ID-1: /dev/nvme0n1 vendor: Seagate model: XPG GAMMIX S11 Pro size: 238.47 GiB speed: 31.6 Gb/s lanes: 4 
         serial: <filter> rev: SS0328D scheme: GPT 
         ID-2: /dev/sda vendor: Seagate model: ST2000DM001-1E6164 size: 1.82 TiB speed: 6.0 Gb/s rotation: 7200 rpm 
         serial: <filter> rev: SC48 temp: 37 C 
         ID-3: /dev/sdb vendor: Western Digital model: WD20EZRX-00D8PB0 size: 1.82 TiB speed: 6.0 Gb/s rotation: 5400 rpm 
         serial: <filter> rev: 0A80 temp: 36 C 
Partition: ID-1: / size: 114.32 GiB used: 81.41 GiB (71.2%) fs: ext4 dev: /dev/dm-1 
         ID-2: /boot size: 468.3 MiB used: 284.4 MiB (60.7%) fs: ext3 dev: /dev/nvme0n1p5 
         ID-3: swap-1 size: 1.80 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/dm-2 
Sensors:   System Temperatures: cpu: 50.9 C mobo: N/A gpu: amdgpu temp: 46 C 
         Fan Speeds (RPM): N/A gpu: amdgpu fan: 1199 
Info:      Processes: 346 Uptime: 16m Memory: 15.57 GiB used: 3.17 GiB (20.3%) Init: systemd v: 245 runlevel: 5 Compilers: 
         gcc: 9.3.0 alt: 8/9 Shell: bash v: 5.0.16 running in: yakuake inxi: 3.0.38

Thanks in advance.