Unexpected reboots while idle

I am having the same problem, also with Kaby Lake and Intel-only graphics. The system only reboots unexpectedly while idle, so I hardly ever see it happen.

inxi --admin --verbosity=7 --filter --no-host --width

System:
  Kernel: 5.13.19-2-MANJARO x86_64 bits: 64 compiler: gcc v: 11.1.0
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.13-x86_64
  root=UUID=f2aa7cd8-38da-49a0-b318-3592b2a7850c rw quiet apparmor=1
  security=apparmor udev.log_priority=3
  Desktop: Cinnamon 5.0.5 tk: GTK 3.24.30 vt: 7 dm: LightDM 1.30.0
  Distro: Manjaro Linux base: Arch Linux
Machine:
  Type: Desktop System: System76 product: Meerkat v: meer4 serial: <filter>
  Chassis: type: 3 v: meer4 serial: <filter>
  Mobo: Intel model: NUC8BEB v: J72692-306 serial: <filter> UEFI: Intel
  v: BECFL357.86A.0071.2019.0510.1505 date: 05/10/2019
Battery:
  Message: No system battery data found. Is one present?
Memory:
  RAM: total: 7.64 GiB used: 4.83 GiB (63.2%)
  RAM Report: permissions: Unable to run dmidecode. Root privileges required.
CPU:
  Info: Quad Core model: Intel Core i5-8259U bits: 64 type: MT MCP
  arch: Kaby Lake note: check family: 6 model-id: 8E (142) stepping: A (10)
  microcode: EA cache: L2: 6 MiB bogomips: 36812
  Speed: 3701 MHz min/max: 400/3800 MHz Core speeds (MHz): 1: 3701 2: 3654
  3: 3781 4: 3665 5: 3757 6: 3783 7: 3744 8: 3763
  Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat arch_perfmon art
  avx avx2 bmi1 bmi2 bts clflush clflushopt cmov constant_tsc cpuid
  cpuid_fault cx16 cx8 de ds_cpl dtes64 dtherm dts epb ept ept_ad erms est
  f16c flexpriority flush_l1d fma fpu fsgsbase fxsr ht hwp hwp_act_window
  hwp_epp hwp_notify ibpb ibrs ida intel_pt invpcid invpcid_single lahf_lm lm
  mca mce md_clear mmx monitor movbe mpx msr mtrr nonstop_tsc nopl nx pae pat
  pbe pcid pclmulqdq pdcm pdpe1gb pebs pge pln pni popcnt pse pse36 pti pts
  rdrand rdseed rdtscp rep_good sdbg sep smap smep ss ssbd sse sse2 sse4_1
  sse4_2 ssse3 stibp syscall tm tm2 tpr_shadow tsc tsc_adjust
  tsc_deadline_timer vme vmx vnmi vpid x2apic xgetbv1 xsave xsavec xsaveopt
  xsaves xtopology xtpr
  Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled
  Type: l1tf
  mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
  Type: mds mitigation: Clear CPU buffers; SMT vulnerable
  Type: meltdown mitigation: PTI
  Type: spec_store_bypass
  mitigation: Speculative Store Bypass disabled via prctl and seccomp
  Type: spectre_v1
  mitigation: usercopy/swapgs barriers and __user pointer sanitization
  Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional,
  IBRS_FW, STIBP: conditional, RSB filling
  Type: srbds mitigation: Microcode
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: Intel CoffeeLake-U GT3e [Iris Plus Graphics 655] driver: i915
  v: kernel bus-ID: 00:02.0 chip-ID: 8086:3ea5 class-ID: 0300
  Display: x11 server: X.Org 1.20.13 driver: loaded: modesetting
  alternate: fbdev,vesa display-ID: :0 screens: 1
  Screen-1: 0 s-res: 3840x2160 s-dpi: 48 s-size: 2032x1143mm (80.0x45.0")
  s-diag: 2331mm (91.8")
  Monitor-1: DP-1 res: 3840x2160 hz: 60 dpi: 157 size: 621x341mm (24.4x13.4")
  diag: 708mm (27.9")
  OpenGL: renderer: Mesa Intel Iris Plus Graphics 655 (CFL GT3)
  v: 4.6 Mesa 21.2.3 direct render: Yes
Audio:
  Device-1: Intel Cannon Point-LP High Definition Audio driver: snd_hda_intel
  v: kernel alternate: snd_soc_skl,snd_sof_pci_intel_cnl bus-ID: 00:1f.3
  chip-ID: 8086:9dc8 class-ID: 0403
  Sound Server-1: ALSA v: k5.13.19-2-MANJARO running: yes
  Sound Server-2: JACK v: 1.9.19 running: no
  Sound Server-3: PulseAudio v: 15.0 running: yes
  Sound Server-4: PipeWire v: 0.3.38 running: no
Network:
  Device-1: Intel Cannon Point-LP CNVi [Wireless-AC] driver: iwlwifi v: kernel
  bus-ID: 00:14.3 chip-ID: 8086:9df0 class-ID: 0280
  IF: wlp0s20f3 state: down mac: <filter>
  Device-2: Intel Ethernet I219-V driver: e1000e v: kernel port: N/A
  bus-ID: 00:1f.6 chip-ID: 8086:15be class-ID: 0200
  IF: eno1 state: up speed: 1000 Mbps duplex: full mac: <filter>
  IP v4: <filter> type: dynamic noprefixroute scope: global
  broadcast: <filter>
  IP v6: <filter> type: dynamic noprefixroute scope: global
  IP v6: <filter> type: dynamic noprefixroute scope: global
  IP v6: <filter> type: noprefixroute scope: link
  WAN IP: <filter>
Bluetooth:
  Device-1: Intel Bluetooth 9460/9560 Jefferson Peak (JfP) type: USB
  driver: btusb v: 0.8 bus-ID: 1-10:4 chip-ID: 8087:0aaa class-ID: e001
  Report: rfkill ID: hci0 rfk-id: 1 state: down bt-service: enabled,running
  rfk-block: hardware: no software: yes address: see --recommends
Logical:
  Message: No logical block device data found.
RAID:
  Message: No RAID data found.
Drives:
  Local Storage: total: 232.89 GiB used: 174.75 GiB (75.0%)
  SMART Message: Required tool smartctl not installed. Check --recommends
  ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung
  model: SSD 970 EVO Plus 250GB size: 232.89 GiB block-size: physical: 512 B
  logical: 512 B speed: 31.6 Gb/s lanes: 4 type: SSD serial: <filter>
  rev: 1B2QEXM7 temp: 39.9 C scheme: GPT
  Message: No optical or floppy data found.
Partition:
  ID-1: / raw-size: 228.38 GiB size: 223.8 GiB (97.99%)
  used: 174.75 GiB (78.1%) fs: ext4 dev: /dev/nvme0n1p3 maj-min: 259:3
  label: ROOT uuid: f2aa7cd8-38da-49a0-b318-3592b2a7850c
  ID-2: /boot/efi raw-size: 512 MiB size: 511 MiB (99.80%)
  used: 288 KiB (0.1%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1 label: N/A
  uuid: 0F05-C403
Swap:
  Alert: No swap data was found.
Unmounted:
  ID-1: /dev/nvme0n1p2 maj-min: 259:2 size: 4 GiB fs: vfat label: RECOVERY
  uuid: 03D3-F805
USB:
  Hub-1: 1-0:1 info: Full speed (or root) Hub ports: 12 rev: 2.0
  speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
  Device-1: 1-3:2 info: Logitech K840 Mechanical Corded Keyboard
  type: Keyboard,HID driver: hid-generic,usbhid interfaces: 2 rev: 2.0
  speed: 12 Mb/s power: 98mA chip-ID: 046d:c33b class-ID: 0300
  serial: <filter>
  Device-2: 1-4:3 info: Logitech Optical Wheel Mouse type: Mouse
  driver: hid-generic,usbhid interfaces: 1 rev: 2.0 speed: 1.5 Mb/s
  power: 100mA chip-ID: 046d:c018 class-ID: 0301
  Device-3: 1-10:4 info: Intel Bluetooth 9460/9560 Jefferson Peak (JfP)
  type: Bluetooth driver: btusb interfaces: 2 rev: 2.0 speed: 12 Mb/s
  power: 100mA chip-ID: 8087:0aaa class-ID: e001
  Hub-2: 2-0:1 info: Full speed (or root) Hub ports: 6 rev: 3.1 speed: 10 Gb/s
  chip-ID: 1d6b:0003 class-ID: 0900
Sensors:
  System Temperatures: cpu: 58.0 C mobo: 27.8 C
  Fan Speeds (RPM): N/A
Info:
  Processes: 235 Uptime: 30m wakeups: 0 Init: systemd v: 249 tool: systemctl
  Compilers: gcc: 11.1.0 Packages: pacman: 1082 lib: 280 flatpak: 0
  Shell: Bash v: 5.1.8 running-in: gnome-terminal inxi: 3.3.07

journalctl -b -1 --catalog --priority=4

-- Journal begins at Tue 2021-10-12 21:18:16 CDT, ends at Sun 2021-10-17 19:46:36 CDT. --
Oct 16 20:06:40 LasCruces kernel: x86/cpu: SGX disabled by BIOS.
Oct 16 20:06:40 LasCruces kernel: MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details.
Oct 16 20:06:40 LasCruces kernel:  #5 #6 #7
Oct 16 20:06:40 LasCruces kernel: ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
Oct 16 20:06:40 LasCruces kernel: nvme nvme0: missing or invalid SUBNQN field.
Oct 16 20:06:40 LasCruces kernel: usb: port power management may be unreliable
Oct 16 20:06:40 LasCruces kernel: acpi PNP0C14:02: duplicate WMI GUID 05901221-D566-11D1-B2F0-00A0C9062910 (first instance was on PNP0C14:01)
Oct 16 20:06:40 LasCruces kernel: acpi PNP0C14:03: duplicate WMI GUID 05901221-D566-11D1-B2F0-00A0C9062910 (first instance was on PNP0C14:01)
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 0
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 1
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 2
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 3
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 4
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 6
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 8
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 9
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 10
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 11
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 15
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 16
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 18
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 19
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 20
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 21
Oct 16 20:06:40 LasCruces kernel: iwlwifi 0000:00:14.3: WRT: Overriding region id 28
Oct 16 20:06:40 LasCruces systemd[1]: lightdm.service: Failed with result 'exit-code'.
β–‘β–‘ Subject: Unit failed
β–‘β–‘ Defined-By: systemd
β–‘β–‘ Support: https://forum.manjaro.org/c/support
β–‘β–‘ 
β–‘β–‘ The unit lightdm.service has entered the 'failed' state with result 'exit-code'.
Oct 16 20:06:41 LasCruces systemd[1]: systemd-rfkill.socket: Socket service systemd-rfkill.service not loaded, refusing.
Oct 16 20:06:41 LasCruces systemd[1]: Failed to listen on Load/Save RF Kill Switch Status /dev/rfkill Watch.
β–‘β–‘ Subject: A start job for unit systemd-rfkill.socket has failed
β–‘β–‘ Defined-By: systemd
β–‘β–‘ Support: https://forum.manjaro.org/c/support
β–‘β–‘ 
β–‘β–‘ A start job for unit systemd-rfkill.socket has finished with a failure.
β–‘β–‘ 
β–‘β–‘ The job identifier is 471 and the job result is failed.
Oct 16 20:06:41 LasCruces systemd[1]: lightdm.service: Failed with result 'exit-code'.
β–‘β–‘ Subject: Unit failed
β–‘β–‘ Defined-By: systemd
β–‘β–‘ Support: https://forum.manjaro.org/c/support
β–‘β–‘ 
β–‘β–‘ The unit lightdm.service has entered the 'failed' state with result 'exit-code'.
Oct 16 20:06:41 LasCruces kernel: thermal thermal_zone3: failed to read out thermal zone (-61)
Oct 16 20:06:41 LasCruces systemd[1]: lightdm.service: Failed with result 'exit-code'.
β–‘β–‘ Subject: Unit failed
β–‘β–‘ Defined-By: systemd
β–‘β–‘ Support: https://forum.manjaro.org/c/support
β–‘β–‘ 
β–‘β–‘ The unit lightdm.service has entered the 'failed' state with result 'exit-code'.
Oct 16 20:06:41 LasCruces systemd-udevd[307]: could not read from '/sys/module/pcc_cpufreq/initstate': No such device
Oct 16 20:06:41 LasCruces kernel: snd_hda_codec_hdmi hdaudioC0D2: Monitor plugged-in, Failed to power up codec ret=[-13]
Oct 16 20:06:43 LasCruces kernel: Bluetooth: hci0: MSFT filter_enable is already on
Oct 16 20:06:43 LasCruces systemd-logind[376]: /etc/systemd/sleep.conf.d/disable-hibernate.conf:1: Assignment outside of section. Ignoring.
Oct 16 20:06:43 LasCruces systemd-logind[376]: /etc/systemd/sleep.conf.d/disable-hibernate.conf:1: Assignment outside of section. Ignoring.
Oct 16 20:06:43 LasCruces kernel: kauditd_printk_skb: 64 callbacks suppressed
Oct 16 20:11:00 LasCruces lightdm[812]: gkr-pam: unable to locate daemon control file
Oct 16 20:11:00 LasCruces systemd-xdg-autostart-generator[852]: /home/ben/.config/autostart/transmission-gtk.desktop:16: Unknown key name 'Actions' in section 'Desktop Entry', ignoring.
Oct 16 20:11:00 LasCruces systemd-xdg-autostart-generator[852]: /home/ben/.config/autostart/transmission-gtk.desktop:24: Unknown section 'Desktop Action Pause'. Ignoring.
Oct 16 20:11:00 LasCruces systemd-xdg-autostart-generator[852]: /home/ben/.config/autostart/transmission-gtk.desktop:28: Unknown section 'Desktop Action Minimize'. Ignoring.
Oct 16 20:11:01 LasCruces pulseaudio[969]: stat('/etc/pulse/default.pa.d'): No such file or directory
Oct 16 20:11:02 LasCruces cinnamon-session[860]: WARNING: t+1.75453s: Detected that screensaver has appeared on the bus
Oct 16 20:11:10 LasCruces kernel: kauditd_printk_skb: 16 callbacks suppressed
Oct 16 20:11:12 LasCruces cinnamon-session[860]: WARNING: t+11.75464s: Detected that screensaver has left the bus
Oct 16 22:12:45 LasCruces cinnamon-session[860]: WARNING: t+7304.24036s: Detected that screensaver has appeared on the bus
Oct 16 22:38:41 LasCruces cinnamon-session[860]: WARNING: t+8860.58739s: Detected that screensaver has left the bus
Oct 16 22:38:41 LasCruces org.cinnamon.ScreenSaver[2780]: Error in sys.excepthook:
Oct 16 22:38:41 LasCruces org.cinnamon.ScreenSaver[2780]: Original exception was:
Oct 16 22:38:41 LasCruces org.cinnamon.ScreenSaver[2780]: Error in sys.excepthook:
Oct 16 22:38:41 LasCruces org.cinnamon.ScreenSaver[2780]: Original exception was:
Oct 16 22:38:41 LasCruces org.cinnamon.ScreenSaver[2780]: Error in sys.excepthook:
Oct 16 22:38:41 LasCruces org.cinnamon.ScreenSaver[2780]: Original exception was:
Oct 16 23:49:15 LasCruces cinnamon-session[860]: WARNING: t+13094.42184s: Detected that screensaver has appeared on the bus
Oct 16 23:57:30 LasCruces cinnamon-session[860]: WARNING: t+13589.84620s: Detected that screensaver has left the bus
Oct 16 23:57:30 LasCruces org.cinnamon.ScreenSaver[3605]: Error in sys.excepthook:
Oct 16 23:57:30 LasCruces org.cinnamon.ScreenSaver[3605]: Original exception was:
Oct 16 23:57:30 LasCruces org.cinnamon.ScreenSaver[3605]: Error in sys.excepthook:
Oct 16 23:57:30 LasCruces org.cinnamon.ScreenSaver[3605]: Original exception was:
Oct 16 23:57:30 LasCruces org.cinnamon.ScreenSaver[3605]: Error in sys.excepthook:
Oct 16 23:57:30 LasCruces org.cinnamon.ScreenSaver[3605]: Original exception was:
Oct 17 00:07:23 LasCruces systemd-logind[376]: /etc/systemd/sleep.conf.d/disable-hibernate.conf:1: Assignment outside of section. Ignoring.
Oct 17 00:07:23 LasCruces systemd-logind[376]: /etc/systemd/sleep.conf.d/disable-hibernate.conf:1: Assignment outside of section. Ignoring.
Oct 17 00:07:27 LasCruces systemd-logind[376]: /etc/systemd/sleep.conf.d/disable-hibernate.conf:1: Assignment outside of section. Ignoring.
Oct 17 00:07:27 LasCruces systemd-logind[376]: /etc/systemd/sleep.conf.d/disable-hibernate.conf:1: Assignment outside of section. Ignoring.
Oct 17 00:07:27 LasCruces systemd-logind[376]: /etc/systemd/sleep.conf.d/disable-hibernate.conf:1: Assignment outside of section. Ignoring.
Oct 17 00:07:28 LasCruces cinnamon-session[860]: WARNING: t+14187.21526s: Detected that screensaver has appeared on the bus
Oct 17 00:07:28 LasCruces systemd-sleep[4028]: /etc/systemd/sleep.conf.d/disable-hibernate.conf:1: Assignment outside of section. Ignoring.
Oct 17 13:03:27 LasCruces kernel: IRQ 142: no longer affine to CPU1
Oct 17 13:03:27 LasCruces kernel: IRQ 143: no longer affine to CPU2
Oct 17 13:03:27 LasCruces kernel: IRQ 144: no longer affine to CPU3
Oct 17 13:03:27 LasCruces kernel: done.
Oct 17 13:03:27 LasCruces kernel: thermal thermal_zone3: failed to read out thermal zone (-61)
Oct 17 13:03:50 LasCruces cinnamon-session[860]: WARNING: t+14212.74532s: Detected that screensaver has left the bus
Oct 17 13:03:50 LasCruces org.cinnamon.ScreenSaver[3997]: Error in sys.excepthook:
Oct 17 13:03:50 LasCruces org.cinnamon.ScreenSaver[3997]: Original exception was:
Oct 17 13:03:50 LasCruces org.cinnamon.ScreenSaver[3997]: Error in sys.excepthook:
Oct 17 13:03:50 LasCruces org.cinnamon.ScreenSaver[3997]: Original exception was:
Oct 17 13:03:50 LasCruces org.cinnamon.ScreenSaver[3997]: Error in sys.excepthook:
Oct 17 13:03:50 LasCruces org.cinnamon.ScreenSaver[3997]: Original exception was:
Oct 17 14:35:14 LasCruces devhelp[5673]: The file 'file:///usr/share/gtk-doc/html/libxml2/libxml2.devhelp' uses the Devhelp index file format version 1, which is deprecated. A future version of Devhelp may remove the support for the format version 1. The index file should be ported to the Devhelp index file format version 2.
Oct 17 14:35:14 LasCruces org.gnome.Devhelp[5694]: (WebKitWebProcess:2): dbind-WARNING **: 14:35:14.715: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-KNGE44KMT7: No such file or directory
Oct 17 18:42:30 LasCruces cinnamon-session[860]: WARNING: t+34532.23361s: Detected that screensaver has appeared on the bus

sudo dmesg --until β€˜2021-10-17 19:28:34’ --level emerg,alert,crit,err,warn

[    0.160048] x86/cpu: SGX disabled by BIOS.
[    0.174634] MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details.
[    0.174634]  #5 #6 #7
[    0.181175] ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
[    0.503993] nvme nvme0: missing or invalid SUBNQN field.
[    1.089914] usb: port power management may be unreliable
[    2.927438] acpi PNP0C14:02: duplicate WMI GUID 05901221-D566-11D1-B2F0-00A0C9062910 (first instance was on PNP0C14:01)
[    2.927548] acpi PNP0C14:03: duplicate WMI GUID 05901221-D566-11D1-B2F0-00A0C9062910 (first instance was on PNP0C14:01)
[    3.203069] iwlwifi 0000:00:14.3: WRT: Overriding region id 0
[    3.203072] iwlwifi 0000:00:14.3: WRT: Overriding region id 1
[    3.203074] iwlwifi 0000:00:14.3: WRT: Overriding region id 2
[    3.203076] iwlwifi 0000:00:14.3: WRT: Overriding region id 3
[    3.203077] iwlwifi 0000:00:14.3: WRT: Overriding region id 4
[    3.203078] iwlwifi 0000:00:14.3: WRT: Overriding region id 6
[    3.203079] iwlwifi 0000:00:14.3: WRT: Overriding region id 8
[    3.203081] iwlwifi 0000:00:14.3: WRT: Overriding region id 9
[    3.203082] iwlwifi 0000:00:14.3: WRT: Overriding region id 10
[    3.203083] iwlwifi 0000:00:14.3: WRT: Overriding region id 11
[    3.203084] iwlwifi 0000:00:14.3: WRT: Overriding region id 15
[    3.203086] iwlwifi 0000:00:14.3: WRT: Overriding region id 16
[    3.203087] iwlwifi 0000:00:14.3: WRT: Overriding region id 18
[    3.203088] iwlwifi 0000:00:14.3: WRT: Overriding region id 19
[    3.203090] iwlwifi 0000:00:14.3: WRT: Overriding region id 20
[    3.203091] iwlwifi 0000:00:14.3: WRT: Overriding region id 21
[    3.203093] iwlwifi 0000:00:14.3: WRT: Overriding region id 28
[    3.438739] thermal thermal_zone3: failed to read out thermal zone (-61)
[    4.130626] snd_hda_codec_hdmi hdaudioC0D2: Monitor plugged-in, Failed to power up codec ret=[-13]
[    5.252910] kauditd_printk_skb: 58 callbacks suppressed
[    6.004727] Bluetooth: hci0: MSFT filter_enable is already on
[  386.175387] kauditd_printk_skb: 16 callbacks suppressed

/var/log/Xorg.0.log.old

[     3.693] 
X.Org X Server 1.20.13
X Protocol Version 11, Revision 0
[     3.693] Build Operating System: Linux Manjaro Linux
[     3.693] Current Operating System: Linux LasCruces 5.13.19-2-MANJARO #1 SMP PREEMPT Sun Sep 19 21:31:53 UTC 2021 x86_64
[     3.693] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.13-x86_64 root=UUID=f2aa7cd8-38da-49a0-b318-3592b2a7850c rw quiet apparmor=1 security=apparmor udev.log_priority=3
[     3.693] Build Date: 24 August 2021  10:21:29AM
[     3.693]  
[     3.693] Current version of pixman: 0.40.0
[     3.693] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[     3.693] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[     3.693] (==) Log file: "/var/log/Xorg.0.log", Time: Sun Oct 17 19:28:35 2021
[     3.693] (==) Using config directory: "/etc/X11/xorg.conf.d"
[     3.693] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[     3.693] (==) No Layout section.  Using the first Screen section.
[     3.693] (==) No screen section available. Using defaults.
[     3.693] (**) |-->Screen "Default Screen Section" (0)
[     3.693] (**) |   |-->Monitor "<default monitor>"
[     3.693] (==) No monitor specified for screen "Default Screen Section".
	Using a default monitor configuration.
[     3.693] (==) Automatically adding devices
[     3.693] (==) Automatically enabling devices
[     3.693] (==) Automatically adding GPU devices
[     3.693] (==) Automatically binding GPU devices
[     3.693] (==) Max clients allowed: 256, resource mask: 0x1fffff
[     3.693] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/misc".
[     3.693] 	Entry deleted from font path.
[     3.693] 	(Run 'mkfontdir' on "/usr/share/fonts/misc").
[     3.693] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/TTF".
[     3.693] 	Entry deleted from font path.
[     3.693] 	(Run 'mkfontdir' on "/usr/share/fonts/TTF").
[     3.693] (WW) The directory "/usr/share/fonts/OTF" does not exist.
[     3.693] 	Entry deleted from font path.
[     3.693] (WW) The directory "/usr/share/fonts/Type1" does not exist.
[     3.693] 	Entry deleted from font path.
[     3.693] (WW) The directory "/usr/share/fonts/100dpi" does not exist.
[     3.693] 	Entry deleted from font path.
[     3.693] (WW) The directory "/usr/share/fonts/75dpi" does not exist.
[     3.693] 	Entry deleted from font path.
[     3.693] (==) FontPath set to:
	
[     3.693] (==) ModulePath set to "/usr/lib/xorg/modules"
[     3.693] (II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
[     3.693] (II) Module ABI versions:
[     3.693] 	X.Org ANSI C Emulation: 0.4
[     3.693] 	X.Org Video Driver: 24.1
[     3.693] 	X.Org XInput driver : 24.1
[     3.693] 	X.Org Server Extension : 10.0
[     3.694] (++) using VT number 7

[     3.694] (II) systemd-logind: logind integration requires -keeptty and -keeptty was not provided, disabling logind integration
[     3.696] (--) PCI:*(0@0:2:0) 8086:3ea5:8086:2074 rev 1, Mem @ 0xbf000000/16777216, 0x80000000/268435456, I/O @ 0x00004000/64, BIOS @ 0x????????/131072
[     3.696] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[     3.696] (II) LoadModule: "glx"
[     3.696] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[     3.697] (II) Module glx: vendor="X.Org Foundation"
[     3.697] 	compiled for 1.20.13, module version = 1.0.0
[     3.697] 	ABI class: X.Org Server Extension, version 10.0
[     3.697] (==) Matched modesetting as autoconfigured driver 0
[     3.697] (==) Matched fbdev as autoconfigured driver 1
[     3.697] (==) Matched vesa as autoconfigured driver 2
[     3.697] (==) Assigned the driver to the xf86ConfigLayout
[     3.697] (II) LoadModule: "modesetting"
[     3.697] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[     3.698] (II) Module modesetting: vendor="X.Org Foundation"
[     3.698] 	compiled for 1.20.13, module version = 1.20.13
[     3.698] 	Module class: X.Org Video Driver
[     3.698] 	ABI class: X.Org Video Driver, version 24.1
[     3.698] (II) LoadModule: "fbdev"
[     3.698] (WW) Warning, couldn't open module fbdev
[     3.698] (EE) Failed to load module "fbdev" (module does not exist, 0)
[     3.698] (II) LoadModule: "vesa"
[     3.698] (WW) Warning, couldn't open module vesa
[     3.698] (EE) Failed to load module "vesa" (module does not exist, 0)
[     3.698] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[     3.698] (EE) open /dev/dri/card0: No such file or directory
[     3.698] (WW) Falling back to old probe method for modesetting
[     3.698] (EE) open /dev/dri/card0: No such file or directory
[     3.698] (EE) Screen 0 deleted because of no matching config section.
[     3.698] (II) UnloadModule: "modesetting"
[     3.698] (EE) Device(s) detected, but none match those in the config file.
[     3.698] (EE) 
Fatal server error:
[     3.698] (EE) no screens found(EE) 
[     3.698] (EE) 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
[     3.698] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[     3.698] (EE) 
[     3.698] (EE) Server terminated with error (1). Closing log file.

I have tried to fix the problem by creating /etc/systemd/sleep.conf.d/disable-hibernate.conf with

AllowHibernation=no

and creating /etc/tlp.d/50-fix-pstate-crash.conf with

CPU_MIN_PERF_ON_AC=100
CPU_MAX_PERF_ON_AC=100
CPU_MIN_PERF_ON_BAT=100
CPU_MAX_PERF_ON_BAT=100

I have also reinstalled the OS from manjaro-cinnamon-21.1.0-210826-linux513.iso.

1 Like

Welcome to the forum! :wave:

I’ve moved your post to a new thread. While your problem may sound similar to the thread you originally posted in, β€œrandom reboots” is generic and could be caused by a lot of things. You have completely different hardware than the other person, so the cause is most likely different.

Please review the Forum Rules, especially:

1 Like

As suggested in the the thread I originally replied to (can’t post link), I have tried running kernel 5.4 and that made the problem go away. Now I want to try to find a solution that lets me use newer kernels.

Sorry, I did neglect to read the rules before posting.

I tried removing xf86-video-intel when going back to kernel 5.13 and that seems to have solved it.

Maybe that’s all that was required?

That’s an EOL (End Of Life) kernel, hasn’t received an update since September and will be dropped soon. It’s always good to have at least two or three different kernels installed in case one doesn’t boot. I suggest at least the latest LTS (Long Term Support) kernel which is currenlty 5.10. The latest stable kernel is 5.14, but will be replaced soon with 5.15 which is the next LTS candidate as well.