https://bugs.kde.org/show_bug.cgi?id=502443
Bug ID: 502443
Summary: "kwin_core: Cannot grant a token to
KWin::ClientConnection" is displayed periodically
Classification: Plasma
Product: kwin
Version: 6.3.4
Platform: Neon
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: core
Assignee: kwin-bugs-n...@kde.org
Reporter: ironman...@naver.com
Target Milestone: ---
SUMMARY
`journalctl -f` shows "kwin_core: Cannot grant a token to
KWin::ClientConnection" log periodically. and I think this is causing below
issues:
1. Brave browser is unable to keep any login.
2. krdpserver keeps crashing.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE Neon 6.3
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.12.0
Qt Version: 6.8.2
ADDITIONAL INFORMATION
Below is copy of journal printed when I logged into youtube in brave, closed
it, and reopened it.
```
journalctl -f
4월 05 17:05:42 Kedete systemd[1]: ssh.socket: Deactivated successfully.
4월 05 17:05:42 Kedete systemd[1]: Closed ssh.socket - OpenBSD Secure Shell
server socket.
4월 05 17:05:42 Kedete sudo[7696]: pam_unix(sudo:session): session closed for
user root
4월 05 17:05:48 Kedete sudo[7707]: pam_unix(sudo:auth): conversation failed
4월 05 17:05:48 Kedete sudo[7707]: pam_unix(sudo:auth): auth could not identify
password for [tmvkrpxl0]
4월 05 17:05:48 Kedete postfix/pickup[2186]: 3A1E61038E2: uid=1000
from=<tmvkrpxl0>
4월 05 17:05:48 Kedete postfix/cleanup[7714]: 3A1E61038E2:
message-id=<20250405080548.3A1E61038E2@Kedete>
4월 05 17:05:48 Kedete postfix/qmgr[2187]: 3A1E61038E2:
from=<tmvkrpxl0@Kedete>, size=481, nrcpt=1 (queue active)
4월 05 17:05:48 Kedete postfix/local[7716]: 3A1E61038E2: to=<root@Kedete>,
orig_to=<root>, relay=local, delay=0.04, delays=0.02/0.01/0/0, dsn=2.0.0,
status=sent (delivered to mailbox)
4월 05 17:05:48 Kedete postfix/qmgr[2187]: 3A1E61038E2: removed
4월 05 17:05:51 Kedete PackageKit[2763]: daemon quit
4월 05 17:05:51 Kedete systemd[1]: packagekit.service: Deactivated
successfully.
4월 05 17:05:51 Kedete systemd[1]: packagekit.service: Consumed 8.909s CPU
time.
4월 05 17:06:05 Kedete systemd-resolved[763]: Grace period over, resuming full
feature set (UDP+EDNS0) for DNS server 100.100.100.100.
4월 05 17:06:05 Kedete systemd-resolved[763]: Using degraded feature set UDP
instead of UDP+EDNS0 for DNS server 100.100.100.100.
4월 05 17:06:11 Kedete com.docker.backend[2690]: [08:06:11.835078670Z][main.ipc
] (f7f8fa47-21) 855abbbc-BackendAPI S<-C c112aade-time GET /time
4월 05 17:06:11 Kedete com.docker.backend[2690]: [08:06:11.835154107Z][main.ipc
] (f7f8fa47-21) 855abbbc-BackendAPI S->C c112aade-time GET /time
(73.533µs): 2025-04-05 17:06:11.835126964 +0900 KST m=+639.710473316
4월 05 17:06:12 Kedete brave-browser-beta[7172]:
[7217:7297:0405/170612.993993:ERROR:shared_image_manager.cc(509)]
SharedImageManager::ProduceMemory: Trying to Produce a Memory representation
from a non-existent mailbox.
4월 05 17:06:13 Kedete brave-browser-beta[7172]:
[7217:7297:0405/170613.017218:ERROR:shared_image_manager.cc(509)]
SharedImageManager::ProduceMemory: Trying to Produce a Memory representation
from a non-existent mailbox.
4월 05 17:06:13 Kedete brave-browser-beta[7172]:
[7217:7297:0405/170613.044263:ERROR:shared_image_manager.cc(509)]
SharedImageManager::ProduceMemory: Trying to Produce a Memory representation
from a non-existent mailbox.
4월 05 17:06:13 Kedete brave-browser-beta[7172]:
[7217:7297:0405/170613.080056:ERROR:shared_image_manager.cc(509)]
SharedImageManager::ProduceMemory: Trying to Produce a Memory representation
from a non-existent mailbox.
4월 05 17:06:13 Kedete brave-browser-beta[7172]:
[7217:7297:0405/170613.110834:ERROR:shared_image_manager.cc(509)]
SharedImageManager::ProduceMemory: Trying to Produce a Memory representation
from a non-existent mailbox.
4월 05 17:06:13 Kedete brave-browser-beta[7172]:
[7217:7297:0405/170613.143955:ERROR:shared_image_manager.cc(509)]
SharedImageManager::ProduceMemory: Trying to Produce a Memory representation
from a non-existent mailbox.
4월 05 17:06:15 Kedete kwin_wayland[2322]: kwin_core: Cannot grant a token to
KWin::ClientConnection(0x642c46c68b60)
4월 05 17:06:33 Kedete brave-browser-beta[7172]:
[7173:7173:0405/170633.297185:ERROR:wayland_event_watcher.cc(47)] libwayland:
warning: queue 0xc4c00149100 destroyed while proxies still attached:
4월 05 17:06:33 Kedete brave-browser-beta[7172]:
[7173:7173:0405/170633.297271:ERROR:wayland_event_watcher.cc(47)] libwayland:
wl_shm_pool#55 still attached
4월 05 17:06:34 Kedete systemd[2244]: Started
app-brave\x2dbrowser\x2dbeta@19f225c5d2fb4bedaf88aa403400e1f6.service - Brave
Web Browser (beta) - 웹 브라우저.
4월 05 17:06:34 Kedete kernel: audit: type=1400 audit(1743840394.114:177):
apparmor="AUDIT" operation="userns_create" class="namespace" info="Userns
create - transitioning profile" profile="unconfined" pid=7922 comm="brave"
requested="userns_create" target="unprivileged_userns"
4월 05 17:06:34 Kedete kernel: audit: type=1400 audit(1743840394.116:178):
apparmor="DENIED" operation="capable" class="cap" profile="unprivileged_userns"
pid=7931 comm="brave" capability=21 capname="sys_admin"
4월 05 17:06:34 Kedete brave-browser-beta[7172]:
[7173:7206:0405/170634.406454:ERROR:browser_main_loop.cc(276)] GLib:
g_main_context_pop_thread_default: assertion 'stack != NULL' failed
4월 05 17:06:34 Kedete systemd[2244]:
app-org.chromium.Chromium.beta-7173.scope: Consumed 17.315s CPU time.
4월 05 17:06:34 Kedete systemd[2244]:
app-brave\x2dbrowser\x2dbeta@66bbd8b7d1dd4413b04e8dd5fa6fd8f4.service: Consumed
54.239s CPU time, 660.0K memory peak, 0B memory swap peak.
4월 05 17:06:34 Kedete plasmashell[2473]:
file:///usr/share/plasma/plasmoids/org.kde.plasma.private.systemtray/contents/ui/items/PlasmoidItem.qml:24:
TypeError: Cannot read property 'toolTipMainText' of null
4월 05 17:06:34 Kedete systemd[2244]: Started
app-org.chromium.Chromium.beta-7922.scope.
4월 05 17:06:34 Kedete kwin_wayland[2322]: kwin_core: could not find the
toplevel to activate KWin::SurfaceInterface(0x642c473d7e90)
4월 05 17:06:34 Kedete kwin_wayland[2322]: kwin_core: Cannot grant a token to
KWin::ClientConnection(0x642c47582060)
4월 05 17:06:34 Kedete kwin_wayland[2322]: kwin_core: Cannot grant a token to
KWin::ClientConnection(0x642c47582060)
4월 05 17:06:34 Kedete xdg-desktop-portal-kde[2539]: xdp-kde-GlobalShortcuts:
CreateSession called with parameters:
4월 05 17:06:34 Kedete xdg-desktop-portal-kde[2539]: xdp-kde-GlobalShortcuts:
handle:
"/org/freedesktop/portal/desktop/request/1_144/B6F561D6BFFD81487B4105F7CA151F9B"
4월 05 17:06:34 Kedete xdg-desktop-portal-kde[2539]: xdp-kde-GlobalShortcuts:
session_handle:
"/org/freedesktop/portal/desktop/session/1_144/chromium_993A1D8CEFF5B36770507920609D8500"
4월 05 17:06:34 Kedete xdg-desktop-portal-kde[2539]: xdp-kde-GlobalShortcuts:
app_id: "brave-browser-beta"
4월 05 17:06:34 Kedete xdg-desktop-portal-kde[2539]: xdp-kde-GlobalShortcuts:
options: QMap(("handle_token", QVariant(QString,
"B6F561D6BFFD81487B4105F7CA151F9B"))("session_handle_token", QVariant(QString,
"chromium_993A1D8CEFF5B36770507920609D8500")))
4월 05 17:06:35 Kedete xdg-desktop-portal-kde[2539]: xdp-kde-GlobalShortcuts:
ListShortcuts called with parameters:
4월 05 17:06:35 Kedete xdg-desktop-portal-kde[2539]: xdp-kde-GlobalShortcuts:
handle:
"/org/freedesktop/portal/desktop/request/1_144/B7DD5DF1BB0B0C7A02EEF1EB9537A7E6"
4월 05 17:06:35 Kedete xdg-desktop-portal-kde[2539]: xdp-kde-GlobalShortcuts:
session_handle:
"/org/freedesktop/portal/desktop/session/1_144/chromium_993A1D8CEFF5B36770507920609D8500"
4월 05 17:06:40 Kedete kwin_wayland[2322]: kwin_core: Cannot grant a token to
KWin::ClientConnection(0x642c46c68b60)
4월 05 17:06:41 Kedete com.docker.backend[2690]: [08:06:41.838216903Z][main.ipc
] (f7f8fa47-22) 855abbbc-BackendAPI S<-C c112aade-time GET /time
4월 05 17:06:41 Kedete com.docker.backend[2690]: [08:06:41.838276318Z][main.ipc
] (f7f8fa47-22) 855abbbc-BackendAPI S->C c112aade-time GET /time
(56.332µs): 2025-04-05 17:06:41.838251308 +0900 KST m=+669.713597661
4월 05 17:06:44 Kedete brave-browser-beta[7921]:
[7922:7922:0405/170644.524027:ERROR:sharing_service.cc(303)] Device
registration failed with fatal error
```
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