Manjaro KDE starts to lag after its start menu scales up (on its own, maybe a bug?)

Alright, this is driving me crazy. What is actually happening is that after the fresh install of Manjaro KDE Plasme 21.1.1 on my laptop, it was working fine. There was no lag. BUT after few usages, when i press the superkey, the menu shown got big on its own and thats where the problem friggin starts. Whole Manjaro KDE starts to lag. And because of this very problem, i had to keep re-installing the whole OS. But it looks like I ALWAYS end up having this problem.
Please help me guyz. I love this OS but because of this bug I’m starting to hate it.

My laptop specifications -
Intel i3 3110M @2.40GHz
4 gb ram
Intel hd 4000 graphics

SOLUTION :-
I found out that my Manjaro slowed down all of a sudden and application menu launcher got so big all of a sudden because of installing Incompatible video driver. Although I don’t know why is it not compatible. Under hardware drivers in system settings, I uninstalled ‘video-vesa’ driver and rebooted, which fixed my problem.

System:
  Kernel: 5.13.12-1-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.13-x86_64 
  root=UUID=e8f7f137-5dfa-46fa-a1ed-4f8b900fed4d rw quiet apparmor=1 
  security=apparmor udev.log_priority=3 
  Desktop: KDE Plasma 5.22.4 tk: Qt 5.15.2 wm: kwin_x11 vt: 1 dm: SDDM 
  Distro: Manjaro Linux base: Arch Linux 
Machine:
  Type: Laptop System: LENOVO product: 20207 v: Lenovo B490 serial: <filter> 
  Chassis: type: 10 serial: <filter> 
  Mobo: LENOVO model: 20207 serial: <filter> UEFI-[Legacy]: LENOVO 
  v: H5ET73WW(1.16) date: 04/10/2013 
Battery:
  ID-1: BAT0 charge: 6.8 Wh (46.3%) condition: 14.7/38.9 Wh (37.8%) 
  volts: 11.6 min: 10.8 model: SANYO 45N1043 type: Li-ion serial: <filter> 
  status: Charging 
Memory:
  RAM: total: 3.43 GiB used: 1.36 GiB (39.7%) 
  RAM Report: permissions: Unable to run dmidecode. Root privileges required. 
CPU:
  Info: Dual Core model: Intel Core i3-3110M bits: 64 type: MT MCP 
  arch: Ivy Bridge family: 6 model-id: 3A (58) stepping: 9 microcode: 21 
  cache: L2: 3 MiB bogomips: 19166 
  Speed: 1197 MHz min/max: 1200/2400 MHz Core speeds (MHz): 1: 1197 2: 1922 
  3: 1533 4: 1729 
  Flags: acpi aperfmperf apic arat arch_perfmon avx bts clflush cmov 
  constant_tsc cpuid cpuid_fault cx16 cx8 de ds_cpl dtes64 dtherm dts epb ept 
  erms est f16c flexpriority flush_l1d fpu fsgsbase fxsr ht ibpb ibrs lahf_lm 
  lm mca mce md_clear mmx monitor msr mtrr nonstop_tsc nopl nx pae pat pbe 
  pcid pclmulqdq pdcm pebs pge pln pni popcnt pse pse36 pti pts rdtscp 
  rep_good sep smep ss ssbd sse sse2 sse4_1 sse4_2 ssse3 stibp syscall tm tm2 
  tpr_shadow tsc tsc_deadline_timer vme vmx vnmi vpid x2apic xsave xsaveopt 
  xtopology xtpr 
  Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled 
  Type: l1tf 
  mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable 
  Type: mds mitigation: Clear CPU buffers; SMT vulnerable 
  Type: meltdown mitigation: PTI 
  Type: spec_store_bypass 
  mitigation: Speculative Store Bypass disabled via prctl and seccomp 
  Type: spectre_v1 
  mitigation: usercopy/swapgs barriers and __user pointer sanitization 
  Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional, 
  IBRS_FW, STIBP: conditional, RSB filling 
  Type: srbds status: Not affected 
  Type: tsx_async_abort status: Not affected 
Graphics:
  Device-1: Intel 3rd Gen Core processor Graphics vendor: Lenovo driver: i915 
  v: kernel bus-ID: 00:02.0 chip-ID: 8086:0166 class-ID: 0300 
  Device-2: Acer Lenovo Integrated Webcam type: USB driver: uvcvideo 
  bus-ID: 1-1.5:5 chip-ID: 5986:0294 class-ID: 0e02 
  Display: x11 server: X.Org 1.20.13 compositor: kwin_x11 driver: loaded: vesa 
  display-ID: :0 screens: 1 
  Screen-1: 0 s-res: 1368x768 s-dpi: 112 s-size: 310x171mm (12.2x6.7") 
  s-diag: 354mm (13.9") 
  Monitor-1: default res: 1368x768 
  OpenGL: renderer: llvmpipe (LLVM 12.0.1 256 bits) v: 4.5 Mesa 21.2.1 
  compat-v: 3.1 direct render: Yes 
Audio:
  Device-1: Intel 7 Series/C216 Family High Definition Audio vendor: Lenovo 
  driver: snd_hda_intel v: kernel bus-ID: 00:1b.0 chip-ID: 8086:1e20 
  class-ID: 0403 
  Sound Server-1: ALSA v: k5.13.12-1-MANJARO running: yes 
  Sound Server-2: JACK v: 1.9.19 running: no 
  Sound Server-3: PulseAudio v: 15.0 running: yes 
  Sound Server-4: PipeWire v: 0.3.33 running: yes 
Network:
  Device-1: Broadcom BCM43142 802.11b/g/n vendor: Lenovo driver: wl v: kernel 
  port: efa0 bus-ID: 02:00.0 chip-ID: 14e4:4365 class-ID: 0280 
  IF: wlp2s0 state: up mac: <filter> 
  IP v4: <filter> type: dynamic noprefixroute scope: global 
  broadcast: <filter> 
  IP v6: <filter> type: noprefixroute scope: link 
  Device-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet 
  vendor: Lenovo driver: r8168 v: 8.049.02-NAPI modules: r8169 port: 2000 
  bus-ID: 03:00.0 chip-ID: 10ec:8168 class-ID: 0200 
  IF: enp3s0 state: down mac: <filter> 
  WAN IP: <filter> 
Bluetooth:
  Device-1: Foxconn BCM43142A0 Bluetooth module type: USB driver: btusb v: 0.8 
  bus-ID: 1-1.4:4 chip-ID: 105b:e065 class-ID: fe01 serial: <filter> 
  Report: rfkill ID: hci0 rfk-id: 2 state: up address: see --recommends 
Logical:
  Message: No logical block device data found. 
RAID:
  Message: No RAID data found. 
Drives:
  Local Storage: total: 465.76 GiB used: 8.7 GiB (1.9%) 
  SMART Message: Unable to run smartctl. Root privileges required. 
  ID-1: /dev/sda maj-min: 8:0 vendor: Seagate model: ST500LT012-9WS142 
  size: 465.76 GiB block-size: physical: 4096 B logical: 512 B speed: 3.0 Gb/s 
  type: HDD rpm: 5400 serial: <filter> rev: LVM1 scheme: MBR 
  Optical-1: /dev/sr0 vendor: HL-DT-ST model: DVDRAM GT80N rev: LN80 
  dev-links: cdrom 
  Features: speed: 24 multisession: yes audio: yes dvd: yes 
  rw: cd-r,cd-rw,dvd-r,dvd-ram state: running 
Partition:
  ID-1: / raw-size: 465.76 GiB size: 457.38 GiB (98.20%) used: 8.7 GiB (1.9%) 
  fs: ext4 dev: /dev/sda1 maj-min: 8:1 label: N/A 
  uuid: e8f7f137-5dfa-46fa-a1ed-4f8b900fed4d 
Swap:
  Alert: No swap data was found. 
Unmounted:
  Message: No unmounted partitions found. 
USB:
  Hub-1: 1-0:1 info: Full speed (or root) Hub ports: 3 rev: 2.0 
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900 
  Hub-2: 1-1:2 info: Intel Integrated Rate Matching Hub ports: 6 rev: 2.0 
  speed: 480 Mb/s chip-ID: 8087:0024 class-ID: 0900 
  Device-1: 1-1.3:3 
  info: Upek Biometric Touchchip/Touchstrip Fingerprint Sensor 
  type: <vendor specific> driver: N/A interfaces: 1 rev: 1.0 speed: 12 Mb/s 
  power: 100mA chip-ID: 147e:1002 class-ID: 0000 
  Device-2: 1-1.4:4 info: Foxconn BCM43142A0 Bluetooth module type: Bluetooth 
  driver: btusb interfaces: 4 rev: 2.0 speed: 12 Mb/s chip-ID: 105b:e065 
  class-ID: fe01 serial: <filter> 
  Device-3: 1-1.5:5 info: Acer Lenovo Integrated Webcam type: Video 
  driver: uvcvideo interfaces: 2 rev: 2.0 speed: 480 Mb/s power: 320mA 
  chip-ID: 5986:0294 class-ID: 0e02 
  Hub-3: 2-0:1 info: Full speed (or root) Hub ports: 3 rev: 2.0 
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900 
  Hub-4: 2-1:2 info: Intel Integrated Rate Matching Hub ports: 8 rev: 2.0 
  speed: 480 Mb/s chip-ID: 8087:0024 class-ID: 0900 
  Device-1: 2-1.6:3 info: Alcor Micro Multi Flash Reader type: Mass Storage 
  driver: usb-storage interfaces: 1 rev: 2.0 speed: 480 Mb/s power: 250mA 
  chip-ID: 058f:6366 class-ID: 0806 serial: <filter> 
  Hub-5: 3-0:1 info: Full speed (or root) Hub ports: 4 rev: 2.0 
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900 
  Hub-6: 4-0:1 info: Full speed (or root) Hub ports: 4 rev: 3.0 speed: 5 Gb/s 
  chip-ID: 1d6b:0003 class-ID: 0900 
Sensors:
  System Temperatures: cpu: 55.0 C mobo: 40.0 C 
  Fan Speeds (RPM): cpu: 0 
Info:
  Processes: 197 Uptime: 8m wakeups: 1 Init: systemd v: 248 tool: systemctl 
  Compilers: gcc: N/A Packages: pacman: 1237 lib: 357 flatpak: 0 Shell: Zsh 
  v: 5.8 default: Bash v: 5.1.8 running-in: konsole inxi: 3.3.06

This is generally caused by old, abandoned themes… Have you tried not installing any themes?

:thinking:

I didn’t change anything. It’s default theme and everything. Although I just noticed that (I again reinstalled the OS) it happens after reboot. The OS was working just fine then I shut it down. When I opened my laptop afterwards, the problem is back again.

  1. Please read this:
    How to provide good information
    and press the three dots below your post and press the :pencil2: to give us more information so we can see what’s really going on.
    Now we know the symptom of the disease, but we need some more probing to know where the origin lies… :grin:
  2. An inxi --admin --verbosity=7 --filter --no-host --width would be the minimum required information for us to be able to help you. (Personally Identifiable Information like serial numbers and MAC addresses will be filtered out by the above command)
    Also, please copy-paste that output in-between 3 backticks ``` at the beginning and end of the code/text.

:+1:

P.S. If you want to notify me that you did provide this information, please :heart: this message and I’ll come back and have another look.

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Alright, I fixed the problem.
Thanks for the help

Could you please edit your post and explain in detail what you did and click the 3 dots below the answer to mark a solution like this below your detailed answer like this:
Solution
so that the next person that has the exact same problem you just had will benefit from your post as well as your question will now be in the “solved” status.

1 Like

If you wait too long you won’t be able to edit your last post any more. If that’s the case, please post a new reply to your original question detailing how you solved your issue.

Please read this:

Especially the section You’re part of a community now

:pray: