My symptoms are pretty similar to ones from this topic but happens on integrated Intel GPU.
Seems like there is something that slow down whole rendering time to time. Even if I just move the cursor it takes few seconds until it starts being delayed and jitter.
I run few commands to collect more info.
$ glxgears -info | grep GL_RENDERER
it is noticeable how gears stutter occasionally
$ inxi -Fzx
System:
Kernel: 6.14.0-63.fc42.x86_64 arch: x86_64 bits: 64 compiler: gcc v: 15.0.1
Desktop: GNOME v: 48.rc Distro: Fedora Linux 42 (Workstation Edition
Prerelease)
Machine:
Type: Laptop System: HP product: HP ProBook 460 16 inch G11 Notebook PC
v: SBKPF,SBKPFV2 serial: <superuser required>
Mobo: HP model: 8C84 v: KBC Version 05.4C.00 serial: <superuser required>
UEFI: HP v: W72 Ver. 01.05.00 date: 01/07/2025
Battery:
ID-1: BAT0 charge: 11.4 Wh (21.4%) condition: 53.3/56.0 Wh (95.0%)
volts: 10.9 min: 11.6 model: Hewlett-Packard Primary status: discharging
CPU:
Info: 12-core (2-mt/10-st) model: Intel Core Ultra 7 155U bits: 64
type: MST AMCP arch: Meteor Lake rev: 4 cache: L1: 1.2 MiB L2: 10 MiB
L3: 12 MiB
Speed (MHz): avg: 400 min/max: 400/4800:3800:2100 cores: 1: 400 2: 400
3: 400 4: 400 5: 400 6: 400 7: 400 8: 400 9: 400 10: 400 11: 400 12: 400
13: 400 14: 400 bogomips: 75264
Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
Graphics:
Device-1: Intel Meteor Lake-P [Intel Graphics] vendor: Hewlett-Packard
driver: i915 v: kernel arch: Xe-LPG bus-ID: 00:02.0
Device-2: Quanta HP FHD Camera driver: uvcvideo type: USB bus-ID: 3-5:3
Display: wayland server: X.Org v: 24.1.6 with: Xwayland v: 24.1.6
compositor: gnome-shell driver: dri: iris gpu: i915
resolution: 1920x1200~60Hz
API: OpenGL v: 4.6 vendor: intel mesa v: 25.0.2 glx-v: 1.4
direct-render: yes renderer: Mesa Intel Graphics (MTL)
API: EGL Message: EGL data requires eglinfo. Check --recommends.
Info: Tools: api: glxinfo x11: xdriinfo, xdpyinfo, xprop, xrandr
Audio:
Device-1: Intel Meteor Lake-P HD Audio vendor: Hewlett-Packard
driver: sof-audio-pci-intel-mtl bus-ID: 00:1f.3
API: ALSA v: k6.14.0-63.fc42.x86_64 status: kernel-api
Server-1: JACK v: 1.9.22 status: off
Server-2: PipeWire v: 1.4.1 status: active
Network:
Device-1: Intel Meteor Lake PCH CNVi WiFi driver: iwlwifi v: kernel
bus-ID: 00:14.3
IF: wlp0s20f3 state: up mac: <filter>
Device-2: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
vendor: Hewlett-Packard driver: r8169 v: kernel port: 3000 bus-ID: 02:00.0
IF: enp2s0 state: down mac: <filter>
IF-ID-1: docker0 state: down mac: <filter>
IF-ID-2: virbr0 state: down mac: <filter>
IF-ID-3: virbr1 state: down mac: <filter>
Bluetooth:
Device-1: Intel AX211 Bluetooth driver: btusb v: 0.8 type: USB
bus-ID: 3-10:4
Report: btmgmt ID: hci0 rfk-id: 0 state: down bt-service: enabled,running
rfk-block: hardware: no software: yes address: <filter> bt-v: 5.3 lmp-v: 12
Drives:
Local Storage: total: 953.87 GiB used: 90.64 GiB (9.5%)
ID-1: /dev/nvme0n1 vendor: Samsung model: MZVL41T0HBLB-00BH1
size: 953.87 GiB temp: 33.9 C
Partition:
ID-1: / size: 78.03 GiB used: 65.99 GiB (84.6%) fs: btrfs
dev: /dev/nvme0n1p3
ID-2: /boot size: 973.4 MiB used: 308.1 MiB (31.7%) fs: ext4
dev: /dev/nvme0n1p2
ID-3: /boot/efi size: 598.8 MiB used: 26 MiB (4.3%) fs: vfat
dev: /dev/nvme0n1p1
ID-4: /home size: 78.03 GiB used: 65.99 GiB (84.6%) fs: btrfs
dev: /dev/nvme0n1p3
Swap:
ID-1: swap-1 type: zram size: 8 GiB used: 3.13 GiB (39.1%) dev: /dev/zram0
Sensors:
System Temperatures: cpu: 49.0 C mobo: N/A
Fan Speeds (rpm): N/A
Info:
Memory: total: 16 GiB note: est. available: 15.07 GiB
used: 11.11 GiB (73.7%)
Processes: 479 Uptime: 1d 9h 59m Init: systemd target: graphical (5)
Packages: 38 note: see --rpm Compilers: N/A Shell: Bash v: 5.2.37
inxi: 3.3.37
Help to figure this out, please.