https://bugs.kde.org/show_bug.cgi?id=445420
Bug ID: 445420
Summary: kdeconnectd prevents proper suspend
Product: kdeconnect
Version: unspecified
Platform: Debian unstable
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: albertv...@gmail.com
Reporter: jcgo...@protonmail.com
Target Milestone: ---
SUMMARY
Basically, KDEconnect prevents the system from properly entering suspend, and
at times I had to reboot my laptop (Thinkpad T480s) since the screen wouldn't
turn back on properly.
This is a very odd bug that I'm not even sure that I can reliably reproduce,
but it has happened so many times already that I just stopped using KDE connect
at one point as it became too much of a hassle to use.
STEPS TO REPRODUCE
1. run KDE connect
2. (not sure if required) connect to some device
3. put the laptop to sleep (suspend?)
OBSERVED RESULT
The device tries to enter suspend mode, but kdeconnectd prevents it from doing
so completely. As a workaround, killing the process via `pkill kdeconnectd` or
similar seems to do the trick (but I usually forget to run this when in a
hurry).
EXPECTED RESULT
The device should enter suspend mode properly. Sometimes this does happen even
with KDE connect running, so I'm not 100% sure what triggers it.
SOFTWARE/OS VERSIONS
distro: Debian Unstable
KDE connect: kdeconnect:amd64 21.08.0-1
QT: libqt5 5.15.2
desktop environment: XFCE 4.14
kernel: 5.10.0-8-amd64
ADDITIONAL INFORMATION
A sample output of dmesg when it tries to enter suspend is as follows:
Nov 6 12:34:57 t480s-debian kernel: [273668.514066] PM: suspend entry (deep)
Nov 6 12:34:57 t480s-debian kernel: [273668.528637] Filesystems sync: 0.014
seconds
Nov 6 12:34:57 t480s-debian kernel: [273668.529610] (NULL device *): firmware:
direct-loading firmware regulatory.db
Nov 6 12:34:57 t480s-debian kernel: [273668.529749] (NULL device *): firmware:
direct-loading firmware regulatory.db.p7s
Nov 6 12:34:57 t480s-debian kernel: [273668.529949] (NULL device *): firmware:
direct-loading firmware i915/kbl_dmc_ver1_04.bin
Nov 6 12:35:17 t480s-debian kernel: [273668.533556] (NULL device *): firmware:
direct-loading firmware iwlwifi-8265-36.ucode
Nov 6 12:35:17 t480s-debian kernel: [273668.533618] Freezing user space
processes ...
Nov 6 12:35:17 t480s-debian kernel: [273688.540634] task:kdeconnectd
state:D stack: 0 pid: 2639 ppid: 1723 flags:0x00004004
Nov 6 12:35:17 t480s-debian kernel: [273688.540648] Call Trace:
Nov 6 12:35:17 t480s-debian kernel: [273688.540674] __schedule+0x282/0x870
Nov 6 12:35:17 t480s-debian kernel: [273688.540688] schedule+0x46/0xb0
Nov 6 12:35:17 t480s-debian kernel: [273688.540715]
request_wait_answer+0xa1/0x220 [fuse]
Nov 6 12:35:17 t480s-debian kernel: [273688.540732] ?
add_wait_queue_exclusive+0x70/0x70
Nov 6 12:35:17 t480s-debian kernel: [273688.540753]
fuse_simple_request+0x1a1/0x310 [fuse]
Nov 6 12:35:17 t480s-debian kernel: [273688.540775]
fuse_do_getattr+0xdb/0x320 [fuse]
Nov 6 12:35:17 t480s-debian kernel: [273688.540796] vfs_statx+0xa0/0x130
Nov 6 12:35:17 t480s-debian kernel: [273688.540810]
__do_sys_newlstat+0x39/0x70
Nov 6 12:35:17 t480s-debian kernel: [273688.540824] do_syscall_64+0x33/0x80
Nov 6 12:35:17 t480s-debian kernel: [273688.540838]
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Nov 6 12:35:17 t480s-debian kernel: [273688.540849] RIP: 0033:0x7f67b5e5bd36
Nov 6 12:35:17 t480s-debian kernel: [273688.540856] RSP: 002b:00007ffca1e8d578
EFLAGS: 00000246 ORIG_RAX: 0000000000000006
Nov 6 12:35:17 t480s-debian kernel: [273688.540867] RAX: ffffffffffffffda RBX:
000055e9d9fa7da0 RCX: 00007f67b5e5bd36
Nov 6 12:35:17 t480s-debian kernel: [273688.540872] RDX: 00007ffca1e8d5c0 RSI:
00007ffca1e8d5c0 RDI: 000055e9d9fa6da0
Nov 6 12:35:17 t480s-debian kernel: [273688.540877] RBP: 00007ffca1e8d690 R08:
0000000000000001 R09: 000055e9da11481a
Nov 6 12:35:17 t480s-debian kernel: [273688.540882] R10: 0000000000000004 R11:
0000000000000246 R12: 000055e9d9fa6da0
Nov 6 12:35:17 t480s-debian kernel: [273688.540887] R13: 000055e9da114824 R14:
000055e9d9fa6dbd R15: 000055e9da114825
Nov 6 12:35:17 t480s-debian kernel: [273688.541414]
Nov 6 12:35:17 t480s-debian kernel: [273688.541419] OOM killer enabled.
Nov 6 12:35:17 t480s-debian kernel: [273688.541422] Restarting tasks ... done.
Nov 6 12:35:17 t480s-debian kernel: [273688.611009] PM: suspend exit
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