This issue seems to have been around, at least since Virtualbox 7.1 and libQt6 6.9. I started experiencing it at least since I upgraded to Fedora 43.
Here’s the details of what I’m running:
- VirtualBox 7.2.4.r170995
- Fedora 43, currently running kernel 6.17.7-300.fc43.x86_64
- Cinnamon display manager (with X11, not Wayland, I think. $XDG_SESSION_TYPE contains “x11” & $WAYLAND_DISPLAY isn’t set)
- Thinkpad P14s Gen 5 with AMD Ryzen 7 PRO 8840HS & 64GB RAM
- External 4K monitor is primary, laptop lid is usually closed
I have two VMs running, one Mint Linux, one Windows. Both have 3D acceleration enabled with 256MB VM (issue persists with 3D disabled & 128MB VM).
AFAIK, I’ve fully disabled suspend by:
$ sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target
$ cat /etc/systemd/sleep.conf.d/nosuspend.conf
[Sleep]
AllowSuspend=no
AllowHibernation=no
AllowSuspendThenHibernate=no
AllowHybridSleep=no
$ xset s off
$ xset -display :0.0 dpms 0 0 0
…though something is still trying to trigger it as “Requested suspend operation not supported, ignoring.” shows in the logs when I turn off the external monitor.
More times than not, when I turn off the monitor, VirtualBox & the two VMs and the main process crash with a segfault in libQt6Widgets.so.6.10.0:
Nov 16 08:15:49 myhostname systemd[1]: net-syn-docs.mount: Deactivated successfully.
Nov 16 08:15:49 myhostname systemd-logind[2189]: Requested suspend operation not supported, ignoring.
Nov 16 08:15:49 myhostname nfsrahead[1977542]: setting /net/nfs/mymount readahead to 128
Nov 16 08:15:49 myhostname systemd-logind[2189]: Requested suspend operation not supported, ignoring.
Nov 16 08:15:49 myhostname systemd-logind[2189]: Requested suspend operation not supported, ignoring.
Nov 16 08:16:25 myhostname systemd-logind[2189]: Requested suspend operation not supported, ignoring.
Nov 16 08:16:25 myhostname Deskflow[9056]: [2025-11-16T08:16:25] INFO: either XRRScreenChangeNotifyEvent or RRNotify_CrtcChange received
Nov 16 08:16:25 myhostname Deskflow[9056]: [2025-11-16T08:16:25] INFO: either XRRScreenChangeNotifyEvent or RRNotify_CrtcChange received
Nov 16 08:16:26 myhostname Deskflow[9056]: [2025-11-16T08:16:26] INFO: either XRRScreenChangeNotifyEvent or RRNotify_CrtcChange received
Nov 16 08:16:26 myhostname Deskflow[9056]: [2025-11-16T08:16:26] INFO: either XRRScreenChangeNotifyEvent or RRNotify_CrtcChange received
Nov 16 08:16:26 myhostname Deskflow[9056]: [2025-11-16T08:16:26] INFO: either XRRScreenChangeNotifyEvent or RRNotify_CrtcChange received
Nov 16 08:16:26 myhostname audit[296174]: ANOM_ABEND auid=501 uid=501 gid=501 ses=3 subj=kernel pid=296174 comm="VirtualBox" exe="/usr/lib/virtualbox/VirtualBox" sig=11 res=1
Nov 16 08:16:26 myhostname kernel: VirtualBox[296174]: segfault at 8 ip 00007f0569e8dd94 sp 00007fff8d875ab8 error 4 in libQt6Widgets.so.6.10.0[8dd94,7f0569e00000+50b000] likely on CPU 0 (core 0, socket 0)
Nov 16 08:16:26 myhostname audit[296287]: ANOM_ABEND auid=501 uid=501 gid=501 ses=3 subj=kernel pid=296287 comm="VirtualBoxVM" exe="/usr/lib/virtualbox/VirtualBoxVM" sig=11 res=1
Nov 16 08:16:26 myhostname kernel: Code: f9 ff 4c 8b 55 b8 4c 8b 45 b0 84 c0 75 c0 e9 76 ff ff ff e8 0e ee f8 ff 0f 1f 00 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa <48> 8b 4e 08 48 89 f8 f3 0f 6f 81 38 01 00 00 48 8b 89 48 01 00 00
Nov 16 08:16:26 myhostname kernel: VirtualBoxVM[296287]: segfault at 8 ip 00007f97f8e8dd94 sp 00007ffedd58fdc8 error 4 in libQt6Widgets.so.6.10.0[8dd94,7f97f8e00000+50b000] likely on CPU 7 (core 3, socket 0)
Nov 16 08:16:26 myhostname kernel: Code: f9 ff 4c 8b 55 b8 4c 8b 45 b0 84 c0 75 c0 e9 76 ff ff ff e8 0e ee f8 ff 0f 1f 00 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa <48> 8b 4e 08 48 89 f8 f3 0f 6f 81 38 01 00 00 48 8b 89 48 01 00 00
Nov 16 08:16:26 myhostname systemd-coredump[1977759]: Process 296174 (VirtualBox) of user 501 terminated abnormally with signal 11/SEGV, processing...
Nov 16 08:16:26 myhostname audit: BPF prog-id=408 op=LOAD
Nov 16 08:16:26 myhostname audit: BPF prog-id=409 op=LOAD
Nov 16 08:16:26 myhostname audit: BPF prog-id=410 op=LOAD
Nov 16 08:16:26 myhostname systemd-coredump[1977760]: Process 296287 (VirtualBoxVM) of user 501 terminated abnormally with signal 11/SEGV, processing...
Nov 16 08:16:26 myhostname audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-coredump@4-4098-1977759_1977760-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Nov 16 08:16:26 myhostname systemd[1]: Started systemd-coredump@4-4098-1977759_1977760-0.service - Process Core Dump (PID 1977759/UID 0).
Nov 16 08:16:26 myhostname audit: BPF prog-id=411 op=LOAD
Nov 16 08:16:26 myhostname audit: BPF prog-id=412 op=LOAD
Nov 16 08:16:26 myhostname audit: BPF prog-id=413 op=LOAD
Nov 16 08:16:26 myhostname systemd[1]: Started systemd-coredump@5-4099-1977760_1977761-0.service - Process Core Dump (PID 1977760/UID 0).
Nov 16 08:16:26 myhostname audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-coredump@5-4099-1977760_1977761-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Nov 16 08:16:26 myhostname systemd-coredump[1977761]: Resource limits disable core dumping for process 296174 (VirtualBox).
Nov 16 08:16:26 myhostname systemd-coredump[1977761]: Process 296174 (VirtualBox) of user 501 terminated abnormally without generating a coredump.
Nov 16 08:16:26 myhostname systemd[1]: systemd-coredump@4-4098-1977759_1977760-0.service: Deactivated successfully.
Nov 16 08:16:26 myhostname audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-coredump@4-4098-1977759_1977760-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Nov 16 08:16:26 myhostname audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=systemd-coredump@5-4099-1977760_1977761-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Nov 16 08:16:26 myhostname systemd-coredump[1977763]: Resource limits disable core dumping for process 296287 (VirtualBoxVM).
Nov 16 08:16:26 myhostname systemd-coredump[1977763]: Process 296287 (VirtualBoxVM) of user 501 terminated abnormally without generating a coredump.
Nov 16 08:16:26 myhostname systemd[1]: systemd-coredump@5-4099-1977760_1977761-0.service: Deactivated successfully.
Nov 16 08:16:26 myhostname audit: BPF prog-id=410 op=UNLOAD
Nov 16 08:16:26 myhostname audit: BPF prog-id=409 op=UNLOAD
Nov 16 08:16:26 myhostname audit: BPF prog-id=408 op=UNLOAD
Nov 16 08:16:26 myhostname audit: BPF prog-id=413 op=UNLOAD
Nov 16 08:16:26 myhostname audit: BPF prog-id=412 op=UNLOAD
Nov 16 08:16:26 myhostname audit: BPF prog-id=411 op=UNLOAD
Nov 16 08:16:26 myhostname audit: ANOM_PROMISCUOUS dev=enp1s0f0 prom=0 old_prom=256 auid=501 uid=501 gid=501 ses=3
Nov 16 08:16:26 myhostname kernel: r8169 0000:01:00.0 enp1s0f0: left promiscuous mode
Nov 16 08:16:26 myhostname kernel: vboxnetflt: 128977 out of 35818704 packets were not sent (directed to host)
Nov 16 08:16:26 myhostname abrt-dump-journal-core[2372]: Failed to obtain all required information from journald
Nov 16 08:16:26 myhostname abrt-dump-journal-core[2372]: Failed to obtain all required information from journald
Nov 16 08:16:26 myhostname abrt-dump-journal-core[2372]: Failed to obtain all required information from journald
Nov 16 08:16:26 myhostname abrt-dump-journal-core[2372]: Failed to save detect problem data in abrt database
Nov 16 08:16:26 myhostname abrt-dump-journal-core[2372]: Failed to obtain all required information from journald
Nov 16 08:16:26 myhostname abrt-dump-journal-core[2372]: Failed to save detect problem data in abrt database
Nov 16 08:16:54 myhostname Deskflow[9056]: [2025-11-16T08:16:54] INFO: leaving screen
Any suggestions as to a workaround (other than leaving my monitor on all the time) until a permanent fix is implemented?
Thanks