KDE system tray icon behavior

Sometimes system tray icons start to glitch when i point cursor on them.
It lasts like for a half second and then they are back to normal.
Not a big deal, but kinda annoying when wifi icon changes it level signal and my eyes notice that.
Restarting Latte helps for a while.
My system is: KDE 5.13.2, Frameworks 5.47, Qt 5.11.1.

systray

Check this thread:

Yeah, I noticed it as well. This usually happens after resuming from suspend. I gathered this is some kind of cache corruption. I thought that’s just my machine being not fully compatible with Linux and suspending malfunctioning a bit. Not a big deal but noticeable.
Now that I know that it’s not so uncommon, I may look for this. Maybe it’s already reported or maybe not so it’s worth to do so, even if it turns out to be duplicate. So first thing would be to find a way to reproduce the bug. @Leva, if you have any ideas or observations, let me know.

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I made a mistake in the beginning. It happens not only in KDE 5.13.2, it has happened in 5.12.5 too. So i changed topic name. Anyway, I’m starting to think that it’s Latte fault. I can’t reproduce the glitch today in system tray, but I noticed if I open Latte Settings, it happens with buttons icons like “Bottom”, “Left”, “Remove”, “Quit” etc.
For that, I just open Latte Settings. Moving cursor from one to other buttons. After few circles, i can see the glitch.
@michaldybczak can you reproduce that?

Unfortunately, or maybe fortunately I can’t reproduce that. This can be a latte issue or also intel or other gpu driver issue (so a package or even kernel issue).
So if we can’t reproduce it, sending a bug will not accomplish much. Also we would have to gather info on hardware and drivers to see if there is a common denominator to find what is happening.
It also can be a bugged driver setting (that happens on rolling systems or when you messed with something in the past). Too many possibilities and since not many people are mentioning it, the chance that it’s not directly Plasma or latte are high and that means, some other, obscure conditions that are hard to replicate and debug.

At this point we can only observe and experiment and maybe we come to some helpful conclusions. I see this effect very rarely so it’s not that big deal for me but I’m seeing it from time to time.

Here is my inxi -Fxzc0 output and see if there is some common denominator among us:

System:    Host: alienware-PC Kernel: 4.17.4-1-MANJARO x86_64 bits: 64 compiler: gcc v: 8.1.1 
           Desktop: KDE Plasma 5.13.2 tk: Qt 5.11.1 Distro: Manjaro Linux 17.1.11 Hakoila 
Machine:   Type: Laptop System: Alienware product: Alienware 17 R3 v: 1.4.4 serial: <filter> 
           Mobo: Alienware model: 0GH72M v: A00 serial: <filter> UEFI: Alienware v: 1.4.4 date: 01/08/2018 
Battery:   ID-1: BAT1 charge: 68.6 Wh condition: 79.1/96.0 Wh (82%) model: COMPAL PABAS0241231 
           status: Discharging 
CPU:       Topology: Quad Core model: Intel Core i7-6700HQ bits: 64 type: MT MCP arch: Skylake-S rev: 3 
           L2 cache: 6144 KiB 
           flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 41488 
           Speed: 800 MHz min/max: 800/3500 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 4: 800 5: 800 
           6: 800 7: 800 8: 800 
Graphics:  Card-1: Intel HD Graphics 530 driver: i915 v: kernel bus ID: 00:02.0 
           Card-2: NVIDIA GM204M [GeForce GTX 970M] driver: N/A bus ID: 01:00.0 
           Display: x11 server: X.Org 1.20.0 driver: intel resolution: 1920x1080~60Hz 
           OpenGL: renderer: Mesa DRI Intel HD Graphics 530 (Skylake GT2) v: 4.5 Mesa 18.1.3 
           direct render: Yes 
Audio:     Card-1: Intel Sunrise Point-H HD Audio driver: snd_hda_intel v: kernel bus ID: 00:1f.3 
           Sound Server: ALSA v: k4.17.4-1-MANJARO 
Network:   Card-1: Qualcomm Atheros Killer E2400 Gigabit Ethernet driver: alx v: kernel port: d000 
           bus ID: 3b:00.0 
           IF: enp59s0 state: down mac: <filter> 
           Card-2: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter driver: ath10k_pci v: kernel 
           bus ID: 3c:00.0 
           IF: wlp60s0 state: up mac: <filter> 
           Card-3: Qualcomm Atheros type: USB driver: btusb bus ID: 1:4 
Drives:    HDD Total Size: 1.02 TiB used: 532.59 GiB (51.0%) 
           ID-1: /dev/sda vendor: Kingston model: SM2280S3G2120G size: 111.79 GiB 
           ID-2: /dev/sdb vendor: Hitachi model: HGST HTS721010A9E630 size: 931.51 GiB 
Partition: ID-1: / size: 38.32 GiB used: 29.39 GiB (76.7%) fs: ext4 dev: /dev/sda4 
           ID-2: /home size: 71.26 GiB used: 38.82 GiB (54.5%) fs: ext4 dev: /dev/sda2 
           ID-3: swap-1 size: 196.1 MiB used: 512 KiB (0.3%) fs: swap dev: /dev/zram0 
           ID-4: swap-2 size: 196.1 MiB used: 512 KiB (0.3%) fs: swap dev: /dev/zram1 
           ID-5: swap-3 size: 196.1 MiB used: 512 KiB (0.3%) fs: swap dev: /dev/zram2 
           ID-6: swap-4 size: 196.1 MiB used: 512 KiB (0.3%) fs: swap dev: /dev/zram3 
           ID-7: swap-5 size: 196.1 MiB used: 512 KiB (0.3%) fs: swap dev: /dev/zram4 
           ID-8: swap-6 size: 196.1 MiB used: 256 KiB (0.1%) fs: swap dev: /dev/zram5 
           ID-9: swap-7 size: 196.1 MiB used: 256 KiB (0.1%) fs: swap dev: /dev/zram6 
           ID-10: swap-8 size: 196.1 MiB used: 256 KiB (0.1%) fs: swap dev: /dev/zram7 
Sensors:   System Temperatures: cpu: 53.0 C mobo: N/A 
           Fan Speeds (RPM): N/A 
Info:      Processes: 325 Uptime: 3h 44m Memory: 7.66 GiB used: 5.52 GiB (72.0%) Init: systemd Compilers: 
           gcc: 8.1.1 Shell: bash v: 4.4.23 inxi: 3.0.12

After last Manjaro updating to KDE 5.13.3 and latte 0.8, I can’t reproduce glitches in system tray and latte panel setting (which I could constantly). Or maybe it’s the new mesa version played a role.

Here is my inxi -Fxzc0 output

System:    Host: thinkpad Kernel: 4.17.7-1-MANJARO x86_64 bits: 64 compiler: gcc v: 8.1.1 
           Desktop: KDE Plasma 5.13.3 Distro: Manjaro Linux 
Machine:   Type: Laptop System: LENOVO product: 2352CTO v: ThinkPad T430s serial: <filter> 
           Mobo: LENOVO model: 2352CTO serial: <filter> UEFI [Legacy]: LENOVO 
           v: G7ETA9WW (2.69 ) date: 09/27/2017 
Battery:   ID-1: BAT0 charge: 24.1 Wh condition: 24.1/43.3 Wh (56%) model: Panasonic 45N1143 
           status: Full 
CPU:       Topology: Dual Core model: Intel Core i5-3210M bits: 64 type: MT MCP 
           arch: Ivy Bridge rev: 9 L2 cache: 3072 KiB 
           flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 19961 
           Speed: 2452 MHz min/max: 1200/3100 MHz Core speeds (MHz): 1: 2452 2: 2511 3: 2565 
           4: 2765 
Graphics:  Card-1: Intel 3rd Gen Core processor Graphics driver: i915 v: kernel 
           bus ID: 00:02.0 
           Card-2: NVIDIA GF117M [GeForce 610M/710M/810M/820M / GT 620M/625M/630M/720M] 
           driver: N/A bus ID: 01:00.0 
           Display: x11 server: X.Org 1.19.6 driver: intel resolution: 1600x900~60Hz 
           OpenGL: renderer: Mesa DRI Intel Ivybridge Mobile v: 4.2 Mesa 18.1.4 
           direct render: Yes 
Audio:     Card-1: Intel 7 Series/C216 Family High Definition Audio driver: snd_hda_intel 
           v: kernel bus ID: 00:1b.0 
           Sound Server: ALSA v: k4.17.7-1-MANJARO 
Network:   Card-1: Intel 82579LM Gigabit Network driver: e1000e v: 3.2.6-k port: 7080 
           bus ID: 00:19 
           IF: enp0s25 state: up speed: 100 Mbps duplex: full mac: <filter> 
           Card-2: Intel Centrino Advanced-N 6205 [Taylor Peak] driver: iwlwifi v: kernel 
           bus ID: 03:00 
           IF: wlp3s0 state: down mac: <filter> 
           IF-ID-1: vboxnet0 state: down mac: <filter> 
Drives:    Local Storage: total: 698.65 GiB used: 57.64 GiB (8.3%) 
           ID-1: /dev/sda vendor: Samsung model: SSD 850 EVO 250GB size: 232.89 GiB 
           ID-2: /dev/sdb vendor: Samsung model: HN-M500MBB size: 465.76 GiB 
Partition: ID-1: / size: 36.47 GiB used: 10.81 GiB (29.6%) fs: ext4 dev: /dev/sda1 
           ID-2: /home size: 191.51 GiB used: 46.83 GiB (24.5%) fs: ext4 dev: /dev/sda5 
Sensors:   System Temperatures: cpu: 67.0 C mobo: N/A 
           Fan Speeds (RPM): cpu: 3812 
Info:      Processes: 241 Uptime: 2d 5h 51m Memory: 11.44 GiB used: 6.69 GiB (58.5%) 
           Init: systemd Compilers: gcc: 8.1.1 Shell: bash v: 4.4.23 inxi: 3.0.18

You’re right. I didn’t notice these glitches as well since some time. They were to rare for me so I didn’t realize when they ended.
Let’s hope that this fixed it permanently.

Since I use latte git version, I don’t think it was a latte update that fixed it.

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