Hi,
so Ive just installed FreeBSD 15.1 on a used Thinkpad T14s, installed KDE and added a few /boot/loader.conf entries to correct issues in I've found in dmesg, but otherwise its a vanilla install. I noticed the graphical session would hang occasionally when using firefox or librewolf when playing a video, I fixed this with a loader.conf entry as it was a hdac0 error in dmesg.
I thought this resolved my hang issues but it didn't , so I switched to using x11 instead of wayland. But still I have the occasional hang albeit a lot less.
The last hang I was playing music via youtube, downloading libreoffice with pkg and I had dolphin file manager open, that was it. I switched to another TTY to check the log.
this was the last errors before I had to reboot.
I did notice in htop that /usr/local/bin/kwin_x11 was at 99% cpu usage also.
these are the entries in /boot/loader.conf I added
dmesg
uname
any ideas what my issue is ? should I switch to something lighter like xfce?
so Ive just installed FreeBSD 15.1 on a used Thinkpad T14s, installed KDE and added a few /boot/loader.conf entries to correct issues in I've found in dmesg, but otherwise its a vanilla install. I noticed the graphical session would hang occasionally when using firefox or librewolf when playing a video, I fixed this with a loader.conf entry as it was a hdac0 error in dmesg.
I thought this resolved my hang issues but it didn't , so I switched to using x11 instead of wayland. But still I have the occasional hang albeit a lot less.
The last hang I was playing music via youtube, downloading libreoffice with pkg and I had dolphin file manager open, that was it. I switched to another TTY to check the log.
Code:
Oct 29 17:57:22 freebsd-pad pkg[6456]: libreoffice-26.8.0.3_2 installed
Oct 29 17:57:23 freebsd-pad kernel: drmn0: [drm] GPU HANG: ecode 9:1:85dfffff, in kwin_x11 [100355]
Oct 29 17:57:23 freebsd-pad kernel: drmn0: [drm] Resetting rcs0 for preemption time out
Oct 29 17:57:23 freebsd-pad kernel: drmn0: [drm] kwin_x11[100355] context reset due to GPU hang
Oct 29 17:57:24 freebsd-pad kernel: drmn0: [drm] GPU HANG: ecode 9:1:85d7ffff, in MainThread [101030]
Oct 29 17:57:24 freebsd-pad kernel: drmn0: [drm] Resetting rcs0 for preemption time out
Oct 29 17:57:24 freebsd-pad kernel: drmn0: [drm] Xorg[101030] context reset due to GPU hang
Oct 29 17:57:27 freebsd-pad kernel: drmn0: [drm] GPU HANG: ecode 9:1:87f8bffb, in MainThread [101030]
Oct 29 17:57:27 freebsd-pad kernel: drmn0: [drm] Resetting rcs0 for preemption time out
Oct 29 17:57:27 freebsd-pad kernel: drmn0: [drm] MainThread[101030] context reset due to GPU hang
Oct 29 17:57:28 freebsd-pad kernel: drmn0: [drm] GPU HANG: ecode 9:1:85dffffb, in QSGRenderThread [101340]
Oct 29 17:57:28 freebsd-pad kernel: drmn0: [drm] Resetting rcs0 for preemption time out
Oct 29 17:57:28 freebsd-pad kernel: drmn0: [drm] QSGRenderThread[101340] context reset due to GPU hang
Oct 29 17:57:29 freebsd-pad kernel: drmn0: [drm] GPU HANG: ecode 9:1:85dfafff, in QSGRenderThread [101360]
Oct 29 17:57:29 freebsd-pad kernel: drmn0: [drm] Resetting rcs0 for preemption time out
Oct 29 17:57:29 freebsd-pad kernel: drmn0: [drm] QSGRenderThread[101360] context reset due to GPU hang
Oct 29 17:57:30 freebsd-pad kernel: drmn0: [drm] GPU HANG: ecode 9:1:85d7ffff, in MainThread [101030]
Oct 29 17:57:30 freebsd-pad kernel: drmn0: [drm] Resetting rcs0 for preemption time out
Oct 29 17:57:30 freebsd-pad kernel: drmn0: [drm] MainThread[101030] context reset due to GPU hang
Oct 29 17:57:35 freebsd-pad kernel: drmn0: [drm] GPU HANG: ecode 9:1:85d7bfff, in Renderer [102489]
Oct 29 17:57:35 freebsd-pad kernel: drmn0: [drm] Resetting rcs0 for preemption time out
Oct 29 17:57:35 freebsd-pad kernel: drmn0: [drm] Renderer[102489] context reset due to GPU hangthis was the last errors before I had to reboot.
I did notice in htop that /usr/local/bin/kwin_x11 was at 99% cpu usage also.
these are the entries in /boot/loader.conf I added
Code:
compat.linuxkpi.i915_disable_power_well="0"
dev.rtsx.0.inversion=1dmesg
Code:
---<<BOOT>>---
Copyright (c) 1992-2025 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 15.1-RELEASE-p6 releng/15.1-n283643-95719d8a895b GENERIC amd64
FreeBSD clang version 19.1.7 (https://github.com/llvm/llvm-project.git llvmorg-19.1.7-0-gcd708029e0b2)
VT(efifb): resolution 1920x1080
CPU: Intel(R) Core(TM) i5-8265U CPU @ 1.60GHz (1800.00-MHz K8-class CPU)
Origin="GenuineIntel" Id=0x806ec Family=0x6 Model=0x8e Stepping=12
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Features2=0x7ffafbbf<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,EST,TM2,SSSE3,SDBG,FMA,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND>
AMD Features=0x2c100800<SYSCALL,NX,Page1GB,RDTSCP,LM>
AMD Features2=0x121<LAHF,ABM,Prefetch>
Structured Extended Features=0x29c67af<FSGSBASE,TSCADJ,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,NFPUSG,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PROCTRACE>
Structured Extended Features3=0xbc000600<MCUOPT,MD_CLEAR,IBPB,STIBP,L1DFL,ARCH_CAP,SSBD>
XSAVE Features=0xf<XSAVEOPT,XSAVEC,XINUSE,XSAVES>
IA32_ARCH_CAPS=0xa0a0c2b<RDCL_NO,IBRS_ALL,SKIP_L1DFL_VME,MDS_NO>
VT-x: (disabled in BIOS) PAT,HLT,MTF,PAUSE,EPT,UG,VPID
TSC: P-state invariant, performance statistics
real memory = 8589934592 (8192 MB)
avail memory = 7960510464 (7591 MB)
Event timer "LAPIC" quality 600
ACPI APIC Table: <LENOVO TP-N2J >
FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs
FreeBSD/SMP: 1 package(s) x 4 core(s) x 2 hardware threads
random: registering fast source Intel Secure Key Seed
random: fast provider: "Intel Secure Key Seed"
random: unblocking device.
ioapic0 <Version 2.0> irqs 0-119
Launching APs: 1 4 6 2 3 7 5
random: entropy device external interface
kbd1 at kbdmux0
efirtc0: <EFI Realtime Clock>
efirtc0: registered as a time-of-day clock, resolution 1.000000s
smbios0: <System Management BIOS> at iomem 0x8ddf5000-0x8ddf5017
smbios0: Entry point: v3 (64-bit), Version: 3.1
aesni0: <AES-CBC,AES-CCM,AES-GCM,AES-ICM,AES-XTS>
acpi0: <LENOVO TP-N2J>
Firmware Error (ACPI): Failure creating named object [\134_SB.PCI0.RP07.BRST], AE_ALREADY_EXISTS (20250807/dswload2-480)
ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20250807/psobject-372)
Firmware Error (ACPI): Failure creating named object [\134_SB.PCI0.RP07.RSTX], AE_ALREADY_EXISTS (20250807/dswload2-480)
ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20250807/psobject-372)
Firmware Error (ACPI): Failure creating named object [\134_SB.PCI0.RP07.RSTG], AE_ALREADY_EXISTS (20250807/dswload2-480)
ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20250807/psobject-372)
Firmware Error (ACPI): Failure creating named object [\134_SB.PCI0.RP07.PXSX.L850], AE_ALREADY_EXISTS (20250807/dswload2-480)
ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20250807/psobject-372)
Firmware Error (ACPI): Failure creating named object [\134_SB.PCI0.RP07.PXSX._RST], AE_ALREADY_EXISTS (20250807/dswload2-480)
ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20250807/psobject-372)
acpi_ec0: <Embedded Controller: GPE 0x16, ECDT> port 0x62,0x66 on acpi0
acpi0: Power Button (fixed)
cpu0: <ACPI CPU> on acpi0
hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
Timecounter "HPET" frequency 24000000 Hz quality 950
Event timer "HPET" frequency 24000000 Hz quality 550
atrtc0: <AT realtime clock> port 0x70-0x77 irq 8 on acpi0
atrtc0: Warning: Couldn't map I/O.
atrtc0: registered as a time-of-day clock, resolution 1.000000s
Event timer "RTC" frequency 32768 Hz quality 0
attimer0: <AT timer> port 0x40-0x43,0x50-0x53 irq 0 on acpi0
Timecounter "i8254" frequency 1193182 Hz quality 0
Event timer "i8254" frequency 1193182 Hz quality 100
Timecounter "ACPI-fast" frequency 3579545 Hz quality 900
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x1808-0x180b on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
vgapci0: <VGA-compatible display> port 0x2000-0x203f mem 0xb0000000-0xb0ffffff,0xa0000000-0xafffffff irq 16 at device 2.0 on pci0
vgapci0: Boot video device
xhci0: <XHCI (generic) USB 3.0 controller> mem 0xb2820000-0xb282ffff at device 20.0 on pci0
xhci0: 32 bytes context size, 64-bit DMA
xhci0: xECP capabilities <PROTO,PROTO,VEND(c0),LEGACY,VEND(c6),VEND(c7),VEND(c2),DEBUG,VEND(c3),VEND(c4),VEND(c5),VEND(c8),VEND(c9),VEND(ca),VEND(cb)>
usbus0 on xhci0
usbus0: 5.0Gbps Super Speed USB v3.0
pci0: <memory, RAM> at device 20.2 (no driver attached)
pci0: <network> at device 20.3 (no driver attached)
pci0: <simple comms> at device 22.0 (no driver attached)
ahci0: <AHCI SATA controller> port 0x2080-0x2087,0x2088-0x208b,0x2060-0x207f mem 0xb2842000-0xb2843fff,0xb284b000-0xb284b0ff,0xb284a000-0xb284a7ff at device 23.0 on pci0
ahci0: AHCI v1.31 with 1 6Gbps ports, Port Multiplier not supported
ahcich2: <AHCI channel> at channel 2 on ahci0
pcib1: <ACPI PCI-PCI bridge> at device 28.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pci1: <unknown> at device 0.0 (no driver attached)
pcib2: <ACPI PCI-PCI bridge> at device 28.4 on pci0
pci2: <ACPI PCI bus> on pcib2
pcib3: <ACPI PCI-PCI bridge> at device 0.0 on pci2
pci3: <ACPI PCI bus> on pcib3
pcib4: <PCI-PCI bridge> at device 0.0 on pci3
pci4: <PCI bus> on pcib4
pcib5: <PCI-PCI bridge> at device 1.0 on pci3
pcib6: <ACPI PCI-PCI bridge> at device 2.0 on pci3
pci5: <ACPI PCI bus> on pcib6
xhci1: <Intel Alpine Ridge Thunderbolt 3 USB controller> mem 0xb2500000-0xb250ffff at device 0.0 on pci5
xhci1: 32 bytes context size, 64-bit DMA
xhci1: xECP capabilities <PROTO,VEND(c0),LEGACY,VEND(c6),VEND(c7),VEND(c2),DEBUG,VEND(c3),VEND(c4),VEND(c5),VEND(c8),VEND(c9),PROTO,VEND(ca)>
usbus1 on xhci1
usbus1: 5.0Gbps Super Speed USB v3.0
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
hdac0: <Intel Cannon Lake HDA Controller> mem 0xb283c000-0xb283ffff,0xb1a00000-0xb1afffff at device 31.3 on pci0
pci0: <serial bus> at device 31.5 (no driver attached)
em0: <Intel(R) I219-V CNP(6)> mem 0xb2800000-0xb281ffff at device 31.6 on pci0
em0: EEPROM V0.5-3
em0: Using 1024 TX descriptors and 1024 RX descriptors
em0: Using an MSI interrupt
em0: Ethernet address: 98:fa:9b:f7:fd:b5
em0: netmap queues/slots: TX 1/1024, RX 1/1024
acpi_button0: <Sleep Button> on acpi0
acpi_lid0: <Control Method Lid Switch> on acpi0
acpi_tz0: <Thermal Zone> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
WARNING: Device "psm" is Giant locked and may be deleted before FreeBSD 16.0.
psm0: model Elantech Touchpad, device ID 0
acpi_syscontainer0: <System Container> on acpi0
acpi_acad0: <AC Adapter> on acpi0
battery0: <ACPI Control Method Battery> on acpi0
hwpstate_intel0: <Intel Speed Shift> on cpu0
cpufreq0: <CPU frequency control> on cpu0
hwpstate_intel1: <Intel Speed Shift> on cpu1
cpufreq1: <CPU frequency control> on cpu1
hwpstate_intel2: <Intel Speed Shift> on cpu2
cpufreq2: <CPU frequency control> on cpu2
hwpstate_intel3: <Intel Speed Shift> on cpu3
cpufreq3: <CPU frequency control> on cpu3
hwpstate_intel4: <Intel Speed Shift> on cpu4
cpufreq4: <CPU frequency control> on cpu4
hwpstate_intel5: <Intel Speed Shift> on cpu5
cpufreq5: <CPU frequency control> on cpu5
hwpstate_intel6: <Intel Speed Shift> on cpu6
cpufreq6: <CPU frequency control> on cpu6
hwpstate_intel7: <Intel Speed Shift> on cpu7
cpufreq7: <CPU frequency control> on cpu7
Timecounter "TSC" frequency 1800001044 Hz quality 1000
Timecounters tick every 1.000 msec
ZFS filesystem version: 5
ZFS storage pool version: features support (5000)
hdacc0: <Realtek ALC257 HDA CODEC> at cad 0 on hdac0
hdaa0: <Realtek ALC257 Audio Function Group> at nid 1 on hdacc0
pcm0: <Realtek ALC257 (Analog 2.0+HP/2.0)> at nid 20,33 and 18 on hdaa0
pcm1: <Realtek ALC257 (Right Analog Mic)> at nid 25 on hdaa0
hdacc1: <Intel Kaby Lake HDA CODEC> at cad 2 on hdac0
hdaa1: <Intel Kaby Lake Audio Function Group> at nid 1 on hdacc1
pcm2: <Intel Kaby Lake (HDMI/DP 8ch)> at nid 3 on hdaa1
Trying to mount root from zfs:zroot/ROOT/default []...
ugen0.1: <Intel XHCI root HUB> at usbus0
uhub0 on usbus0
uhub0: <Intel XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
ugen1.1: <Intel XHCI root HUB> at usbus1
uhub1 on usbus1
uhub1: <Intel XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus1
ada0 at ahcich2 bus 0 scbus0 target 0 lun 0
ada0: <HFS256G39TND-N210A 30001P10> ACS-2 ATA SATA 3.x device
ada0: Serial Number EJ8BN08611200BQ29
ada0: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes)
ada0: Command Queueing enabled
ada0: 244198MB (500118192 512 byte sectors)
uhub1: 4 ports with 4 removable, self powered
uhub0: 18 ports with 18 removable, self powered
Root mount waiting for: usbus0
ugen0.2: <Generic EMV Smartcard Reader> at usbus0
ugen0.3: <Logitech USB Optical Mouse> at usbus0
usbhid0 on uhub0
usbhid0: <Logitech USB Optical Mouse, class 0/0, rev 2.00/72.00, addr 2> on usbus0
hidbus0: <HID bus> on usbhid0
ugen0.4: <Azurewave Integrated Camera> at usbus0
Root mount waiting for: usbus0
ugen0.5: <vendor 0x06cb product 0x00bd> at usbus0
ugen0.6: <vendor 0x8087 product 0x0aaa> at usbus0
[drm] Got Intel graphics stolen memory base 0x9b800000, size 0x2000000
drmn0: <drmn> on vgapci0
vgapci0: child drmn0 requested pci_enable_io
vgapci0: child drmn0 requested pci_enable_io
drmn0: [drm] Found COFFEELAKE/ULT (device ID 3ea0) display version 9.00 stepping N/A
lkpi_iic0: <LinuxKPI I2C> on drmn0
iicbus0: <Philips I2C bus> on lkpi_iic0
iic0: <I2C generic I/O> on iicbus0
lkpi_iic1: <LinuxKPI I2C> on drmn0
iicbus1: <Philips I2C bus> on lkpi_iic1
iic1: <I2C generic I/O> on iicbus1
lkpi_iic2: <LinuxKPI I2C> on drmn0
iicbus2: <Philips I2C bus> on lkpi_iic2
iic2: <I2C generic I/O> on iicbus2
lkpi_iic3: <LinuxKPI I2C> on drmn0
iicbus3: <Philips I2C bus> on lkpi_iic3
iic3: <I2C generic I/O> on iicbus3
drmn0: successfully loaded firmware image 'i915/kbl_dmc_ver1_04.bin'
drmn0: [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
sysctl_add_oid: can't re-use a leaf (hw.dri.debug)!
lkpi_iic4: <LinuxKPI I2C> on drm1
iicbus4: <Philips I2C bus> on lkpi_iic4
iic4: <I2C generic I/O> on iicbus4
lkpi_iic5: <LinuxKPI I2C> on drm2
iicbus5: <Philips I2C bus> on lkpi_iic5
iic5: <I2C generic I/O> on iicbus5
lkpi_iic6: <LinuxKPI I2C> on drm4
iicbus6: <Philips I2C bus> on lkpi_iic6
iic6: <I2C generic I/O> on iicbus6
[drm] Initialized i915 1.6.0 for drmn0 on minor 0
VT: Replacing driver "efifb" with new "drmfb".
start FB_INFO:
height=1080 width=1920 depth=32
pbase=0xa0000000 vbase=0xfffff800a0000000
name=drmn0 id=i915drmfb flags=0x0 stride=7680
end FB_INFO
pchtherm0: <CannonLake-LP Thermal Subsystem> mem 0xb2845000-0xb2845fff at device 18.0 on pci0
iwm0: <Intel(R) Dual Band Wireless AC 9560> mem 0xb2838000-0xb283bfff at device 20.3 on pci0
iwm9000fw: could not load firmware image, error 8
iwm0: hw rev 0x310, fw ver 34.3125811985.0, address 04:ed:33:5f:dd:cc
rtsx0: <2.1g Realtek RTS522A PCIe SD Card Reader> mem 0xb2700000-0xb2700fff at device 0.0 on pci1
rtsx0: No card is detected
acpi_wmi0: <ACPI-WMI mapping> on acpi0
acpi_wmi1: <ACPI-WMI mapping> on acpi0
acpi_wmi1: Embedded MOF found
acpi_wmi2: <ACPI-WMI mapping> on acpi0
acpi_wmi2: Embedded MOF found
acpi_wmi3: <ACPI-WMI mapping> on acpi0
acpi_wmi3: Embedded MOF found
acpi_wmi4: <ACPI-WMI mapping> on acpi0
acpi_wmi4: Embedded MOF found
acpi_wmi5: <ACPI-WMI mapping> on acpi0
acpi_wmi5: Embedded MOF found
acpi_wmi6: <ACPI-WMI mapping> on acpi0
acpi_wmi6: Embedded MOF found
hms0: <Logitech USB Optical Mouse> on hidbus0
hms0: 8 buttons and [XYW] coordinates ID=0
wlan0: Ethernet address: 04:ed:33:5f:dd:cc
lo0: link state changed to UP
wlan0: link state changed to UP
Security policy loaded: MAC/ntpd (mac_ntpd)uname
Code:
FreeBSD freebsd-pad 15.1-RELEASE-p6 FreeBSD 15.1-RELEASE-p6 releng/15.1-n283643-95719d8a895b GENERIC amd64any ideas what my issue is ? should I switch to something lighter like xfce?
Last edited:
