Linux seems to be skipping frames.

I actually made a post about this awhile back, I wasn't very informed. But here's the old post: System wide stuttering
My hardware has changed a little since then but I am still having the same exact issue. It just looks like things jump ahead and frame drop, although I am running everything fine. I cannot get a video of it because it will not show up in a recording.

System:    Kernel: 5.7.9-1-MANJARO x86_64 bits: 64 compiler: gcc v: 10.1.0 Desktop: KDE Plasma 5.19.3 tk: Qt 5.15.0 
           wm: kwin_x11 dm: SDDM Distro: Manjaro Linux 
Machine:   Type: Desktop Mobo: ASUSTeK model: TUF Z370-PRO GAMING v: Rev 1.xx serial: <filter> UEFI: American Megatrends 
           v: 2301 date: 02/25/2020 
Memory:    RAM: total: 7.71 GiB used: 1.40 GiB (18.2%) 
           RAM Report: permissions: Unable to run dmidecode. Root privileges required. 
CPU:       Topology: 6-Core model: Intel Core i5-8600K bits: 64 type: MCP arch: Kaby Lake rev: A L2 cache: 9216 KiB 
           bogomips: 43212 
           Speed: 800 MHz min/max: 800/4300 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 4: 800 5: 800 6: 800 
           Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat arch_perfmon art avx avx2 bmi1 bmi2 bts clflush 
           clflushopt cmov constant_tsc cpuid cpuid_fault cx16 cx8 de ds_cpl dtes64 dtherm dts epb erms est f16c flush_l1d fma 
           fpu fsgsbase fxsr hle ht hwp hwp_act_window hwp_epp hwp_notify ibpb ibrs ida intel_pt invpcid invpcid_single 
           lahf_lm lm mca mce md_clear mmx monitor movbe mpx msr mtrr nonstop_tsc nopl nx pae pat pbe pcid pclmulqdq pdcm 
           pdpe1gb pebs pge pln pni popcnt pse pse36 pti pts rdrand rdseed rdtscp rep_good rtm sdbg sep smap smep smx ss ssbd 
           sse sse2 sse4_1 sse4_2 ssse3 stibp syscall tm tm2 tsc tsc_adjust tsc_deadline_timer vme x2apic xgetbv1 xsave xsavec 
           xsaveopt xsaves xtopology xtpr 
Graphics:  Device-1: NVIDIA GP104 [GeForce GTX 1070 Ti] vendor: ZOTAC driver: nvidia v: 440.100 bus ID: 01:00.0 
           chip ID: 10de:1b82 
           Display: x11 server: X.Org 1.20.8 driver: nvidia compositor: kwin_x11 tty: N/A 
           OpenGL: renderer: GeForce GTX 1070 Ti/PCIe/SSE2 v: 4.6.0 NVIDIA 440.100 direct render: Yes 
Audio:     Device-1: Intel 200 Series PCH HD Audio vendor: ASUSTeK driver: snd_hda_intel v: kernel bus ID: 00:1f.3 
           chip ID: 8086:a2f0 
           Device-2: NVIDIA GP104 High Definition Audio vendor: ZOTAC driver: snd_hda_intel v: kernel bus ID: 01:00.1 
           chip ID: 10de:10f0 
           Device-3: SteelSeries ApS SteelSeries Arctis Pro type: USB driver: hid-generic,snd-usb-audio,usbhid bus ID: 1-1:2 
           chip ID: 1038:1252 serial: <filter> 
           Device-4: C-Media Blue Snowball type: USB driver: hid-generic,snd-usb-audio,usbhid bus ID: 1-3:4 chip ID: 0d8c:0005 
           serial: <filter> 
           Device-5: Logitech Webcam C270 type: USB driver: snd-usb-audio,uvcvideo bus ID: 1-14:12 chip ID: 046d:0825 
           serial: <filter> 
           Sound Server: ALSA v: k5.7.9-1-MANJARO 
Network:   Device-1: Intel Ethernet I219-V vendor: ASUSTeK driver: e1000e v: 3.2.6-k port: f000 bus ID: 00:1f.6 
           chip ID: 8086:15b8 
           IF: enp0s31f6 state: up speed: 1000 Mbps duplex: full mac: <filter> 
           IP v4: <filter> type: dynamic noprefixroute scope: global broadcast: <filter> 
           IP v6: <filter> type: dynamic noprefixroute scope: global 
           IP v6: <filter> type: noprefixroute scope: link 
           WAN IP: <filter> 
Drives:    Local Storage: total: 4.09 TiB used: 10.39 GiB (0.2%) 
           ID-1: /dev/sda vendor: Samsung model: SSD 860 EVO 1TB size: 931.51 GiB speed: 6.0 Gb/s serial: <filter> rev: 2B6Q 
           scheme: GPT 
           ID-2: /dev/sdb vendor: Samsung model: SSD 860 EVO 500GB size: 465.76 GiB speed: 6.0 Gb/s serial: <filter> rev: 2B6Q 
           scheme: GPT 
           ID-3: /dev/sdc vendor: Western Digital model: WD20EZRZ-00Z5HB0 size: 1.82 TiB speed: 6.0 Gb/s rotation: 5400 rpm 
           serial: <filter> rev: 0A80 scheme: GPT 
           ID-4: /dev/sdd vendor: Western Digital model: WD10EZEX-08M2NA0 size: 931.51 GiB speed: 6.0 Gb/s rotation: 7200 rpm 
           serial: <filter> rev: 1A01 scheme: GPT 
           Message: No Optical or Floppy data was found. 
RAID:      Message: No RAID data was found. 
Partition: ID-1: / size: 915.60 GiB used: 10.39 GiB (1.1%) fs: ext4 dev: /dev/sda2 label: N/A 
           uuid: da94900a-d2e4-4da6-8b27-8ac3c8f44a5a 
           ID-2: /boot/efi size: 299.4 MiB used: 280 KiB (0.1%) fs: vfat dev: /dev/sda1 label: N/A uuid: 60F8-2692 
Unmounted: ID-1: /dev/sdb1 size: 529.0 MiB fs: ntfs label: Recovery uuid: 30EA5562EA55257E 
           ID-2: /dev/sdb2 size: 99.0 MiB fs: vfat label: N/A uuid: F455-D38C 
           ID-3: /dev/sdb3 size: 16.0 MiB fs: <root required> label: N/A uuid: N/A 
           ID-4: /dev/sdb4 size: 465.13 GiB fs: ntfs label: N/A uuid: BE3857823857391B 
           ID-5: /dev/sdc1 size: 16.0 MiB fs: <root required> label: N/A uuid: N/A 
           ID-6: /dev/sdc2 size: 1.82 TiB fs: ntfs label: 2TB uuid: 58CE1E65CE1E3C26 
           ID-7: /dev/sdd1 size: 16.0 MiB fs: <root required> label: N/A uuid: N/A 
           ID-8: /dev/sdd2 size: 931.50 GiB fs: ntfs label: 1TB uuid: 367A1B7D7A1B38D7 
USB:       Hub: 1-0:1 info: Full speed (or root) Hub ports: 16 rev: 2.0 speed: 480 Mb/s chip ID: 1d6b:0002 
           Device-1: 1-1:2 info: SteelSeries ApS SteelSeries Arctis Pro type: Audio,HID 
           driver: hid-generic,snd-usb-audio,usbhid interfaces: 6 rev: 2.0 speed: 12 Mb/s chip ID: 1038:1252 serial: <filter> 
           Hub: 1-2:3 info: Corsair Gaming USB2.0 Smart Port ports: 2 rev: 2.0 speed: 480 Mb/s chip ID: 1b1c:1b2c 
           Device-2: 1-2.1:5 info: Corsair SteelSeries Arctis Pro type: HID,Keyboard driver: hid-generic,usbhid interfaces: 2 
           rev: 2.0 speed: 12 Mb/s chip ID: 1b1c:1b3b serial: <filter> 
           Device-3: 1-2.2:7 info: Corsair Gaming USB2.0 Smart Port type: Mouse,HID driver: hid-generic,usbhid interfaces: 2 
           rev: 2.0 speed: 12 Mb/s chip ID: 1b1c:1b2f serial: <filter> 
           Device-4: 1-3:4 info: C-Media Blue Snowball type: Audio,HID driver: hid-generic,snd-usb-audio,usbhid interfaces: 3 
           rev: 1.1 speed: 12 Mb/s chip ID: 0d8c:0005 serial: <filter> 
           Device-5: 1-4:6 info: Corsair Corsair Gaming K70 RGB RAPIDFIRE Keyboard type: Keyboard,HID 
           driver: hid-generic,usbhid interfaces: 2 rev: 2.0 speed: 12 Mb/s chip ID: 1b1c:1b38 serial: <filter> 
           Device-6: 1-14:12 info: Logitech Webcam C270 type: Video,Audio driver: snd-usb-audio,uvcvideo interfaces: 4 
           rev: 2.0 speed: 480 Mb/s chip ID: 046d:0825 serial: <filter> 
           Hub: 2-0:1 info: Full speed (or root) Hub ports: 10 rev: 3.0 speed: 5 Gb/s chip ID: 1d6b:0003 
           Hub: 3-0:1 info: Full speed (or root) Hub ports: 2 rev: 2.0 speed: 480 Mb/s chip ID: 1d6b:0002 
           Hub: 3-2:2 info: Genesys Logic 4-port hub ports: 4 rev: 2.1 speed: 480 Mb/s chip ID: 05e3:0610 
           Device-7: 3-2.1:4 info: Microsoft Xbox One S Controller type: <vendor specific> driver: xpad interfaces: 3 rev: 2.0 
           speed: 12 Mb/s chip ID: 045e:02ea serial: <filter> 
           Hub: 4-0:1 info: Full speed (or root) Hub ports: 2 rev: 3.1 speed: 10 Gb/s chip ID: 1d6b:0003 
           Hub: 4-2:2 info: Genesys Logic hub ports: 4 rev: 3.0 speed: 5 Gb/s chip ID: 05e3:0616 
Sensors:   System Temperatures: cpu: 37.0 C mobo: N/A gpu: nvidia temp: 47 C 
           Fan Speeds (RPM): N/A gpu: nvidia fan: 42% 
Info:      Processes: 224 Uptime: 4m Init: systemd v: 245 Compilers: gcc: 10.1.0 Shell: bash v: 5.0.18 running in: yakuake 
           inxi: 3.0.37 ````Preformatted text`

Hello :slightly_smiling_face:!
First of all you could try if checking both "Force Composition Pipeline" and "Force Full Composition Pipeline" in nvidia-settings helps.

Alternatively, you could try to install kwin-lowlatency from the AUR and see if that helps:

sudo pacman -Syu yay && yay -Syu kwin-lowlatency

If these methods do not work, feel free to reply, we might be able to play around with kwin's settings a bit.

I found that any scaling other than 100% caused problems for me with kde. I changed scaling from 125% back to 100% and changed my screen resolution from 1920x1080 to 1600x900 and had no screen issues after that.

Nice to hear that. You can also force some higher DPI in the font settings to "scale" the desktop without actually scaling it :wink:.

Hello, thanks for the tips but neither of these worked... I should state that this happened on other distros as well. I don't have a high fps camera to show the issue..

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