SUMMARY On Wayland and pipewire, using the standard Task Manager and having "show small window previews when hovering over tasks" enabled, the mouse starts lagging as soon as I hover over a task. At the same time, the pipewire starts spamming the syslog with the following warning messages: Dec 10 19:40:42 hopper pipewire[1590]: mod.client-node: 0x56018f5de1a0: unknown peer 0x56018f6628b0 fd:126 Dec 10 19:40:43 hopper pipewire[1590]: mod.client-node: 0x56018f6803d0: unknown peer 0x56018f685a50 fd:69 Dec 10 19:40:45 hopper pipewire[1590]: mod.client-node: 0x56018f6528a0: unknown peer 0x56018f64fac0 fd:67 ... As a workaround, disabling this setting removes both the lag and the messages. STEPS TO REPRODUCE 1. Start a Wayland shell. Make sure you have pipewire active. 2. (if not already present) Add a task manager to some panel on Plasma. 3. In the task manager's settings, make sure "show small window previews when hovering over tasks" is enabled 4. Hover over some tasks OBSERVED RESULT 1. Task manager lags slightly (mouse movement...) 2. Warning messages appear in syslog EXPECTED RESULT None of the above happening. SOFTWARE/OS VERSIONS Linux: 6.6.5 KDE Plasma Version: 5.27.10 KDE Frameworks Version: 5.112.0 Qt Version: 5.15.11
I don't get any lag, but I do see some log spam. It's different for me though: Dec 12 10:20:00 Liberator plasmashell[184703]: kpipewire_logging: PipeWire remote error: -2 unknown resource 6 op:7 Dec 12 10:20:00 Liberator plasmashell[184703]: kpipewire_logging: PipeWire remote error: -2 unknown resource 8 op:7 Dec 12 10:20:05 Liberator plasmashell[184703]: kpipewire_logging: PipeWire remote error: -2 target not found Dec 12 10:20:05 Liberator plasmashell[184703]: kpipewire_logging: PipeWire remote error: -2 unknown resource 8 op:7 Are you using an NVIDIA GPU?
Hi Nate, no I have an integrated Intel card. Here's what lshw has to say: *-display description: VGA compatible controller product: Raptor Lake-P [Iris Xe Graphics] vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 logical name: /dev/fb0 version: 04 width: 64 bits clock: 33MHz capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb configuration: depth=32 driver=i915 latency=0 mode=1920x1200 resolution=1920,1200 visual=truecolor xres=1920 yres=1200 resources: iomemory:600-5ff iomemory:400-3ff irq:140 memory:603c000000-603cffffff memory:4000000000-400fffffff ioport:2000(size=64) memory:c0000-dffff memory:4010000000-4016ffffff memory:4020000000-40ffffffff
Created attachment 164129 [details] Example of lag when moving the cursor over icons
Comment on attachment 164129 [details] Example of lag when moving the cursor over icons I am experiencing the same problem on Fedora 39 (Kernel 6.6.4, KDE 5.27.9, Wayland, Intel HD Graphics 5300). I was about to create a new bug, but I noticed this one. With the "show small window previews when hovering over tasks" option enabled, when moving the cursor over the taskbar, it breaks on some icons. It looks terrible. And indeed, on the journalctl -e command I see messages like: pipewire[2002]: mod.client-node: 0x559b4d35e1e0: unknown peer 0x559b4d54e100 fd:111 (but I don't know if it's related to the bug)
Ahh, this. It's already fixed in Plasma 6.