Public bug reported:
We have 5 laptops, all brand new Huawei Matebook 14 2021.
They have no hardware problem (on Windows it is ok).
On Ubuntu Linux, the Elantech touchpad regularly freezes for some seconds, with
one of the CPU at 100%.
The problem occurs both with kernel 5.4, and also with the new 5.11 kernel.
I also tried the kernel 5.14 (with mainline) and the problem was not solved, so
I rolled back to 5.11.
I see in dmesg output:
[ 3335.316965] i2c_designware i2c_designware.0: controller timed out
[ 3335.568349] input: ELAN2605:00 04F3:3163 Mouse as
/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-ELAN2605:00/0018:04F3:3163.0001/input/input104
[ 3335.568407] input: ELAN2605:00 04F3:3163 Touchpad as
/devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-ELAN2605:00/0018:04F3:3163.0001/input/input106
[ 3335.568444] hid-multitouch 0018:04F3:3163.0001: input,hidraw0: I2C HID v1.00
Mouse [ELAN2605:00 04F3:3163] on i2c-ELAN2605:00
[ 3335.685062] input: 06CB19AB:00 06CB:1A1A as
/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2/i2c-06CB19AB:00/0018:06CB:1A1A.0002/input/input107
[ 3335.685154] hid-multitouch 0018:06CB:1A1A.0002: input,hidraw1: I2C HID v1.00
Device [06CB19AB:00 06CB:1A1A] on i2c-06CB19AB:00
[ 3360.880952] i2c_designware i2c_designware.0: controller timed out
[ 3548.917328] watchdog: BUG: soft lockup - CPU#3 stuck for 23s! [swapper/3:0]
[ 3548.917333] Modules linked in: hid_multitouch xt_conntrack xt_MASQUERADE
nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype iptable_filter
iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c
bpfilter br_netfilter bridge stp llc vboxnetadp(O) vboxnetflt(O) vboxdrv(O)
cmac algif_hash algif_skcipher af_alg aufs overlay bnep snd_hda_codec_hdmi
hid_logitech_hidpp hid_logitech_dj btusb uvcvideo btrtl btbcm videobuf2_vmalloc
btintel videobuf2_memops bluetooth videobuf2_v4l2 videobuf2_common videodev
ecdh_generic mc usbhid ecc snd_sof_pci snd_sof_intel_hda_common
snd_sof_intel_hda snd_sof_intel_byt snd_sof_intel_ipc snd_sof
snd_sof_xtensa_dsp snd_soc_hdac_hda snd_hda_ext_core snd_soc_acpi_intel_match
snd_soc_acpi snd_hda_intel snd_intel_dspcfg soundwire_intel
soundwire_generic_allocation soundwire_cadence joydev snd_hda_codec
snd_hda_core nls_iso8859_1 mei_hdcp intel_rapl_msr snd_hwdep soundwire_bus
snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine
[ 3548.917395] x86_pkg_temp_thermal intel_powerclamp snd_pcm coretemp
snd_seq_midi kvm_intel snd_seq_midi_event snd_rawmidi i915 snd_seq kvm iwlmvm
crct10dif_pclmul ghash_clmulni_intel snd_seq_device aesni_intel mac80211
drm_kms_helper snd_timer crypto_simd cec cryptd rc_core glue_helper
i2c_algo_bit libarc4 snd huawei_wmi processor_thermal_device intel_cstate
ledtrig_audio fb_sys_fops mei_me processor_thermal_rfim sparse_keymap wmi_bmof
syscopyarea processor_thermal_mbox sysfillrect processor_thermal_rapl
intel_rapl_common soundcore sysimgblt mei intel_soc_dts_iosf iwlwifi input_leds
serio_raw efi_pstore cfg80211 mac_hid int3400_thermal int3403_thermal
acpi_thermal_rel int340x_thermal_zone acpi_pad sch_fq_codel msr parport_pc
ppdev lp parport drm ip_tables x_tables autofs4 hid_generic crc32_pclmul nvme
i2c_i801 i2c_smbus nvme_core intel_lpss_pci intel_lpss idma64 xhci_pci virt_dma
i2c_hid xhci_pci_renesas wmi hid video pinctrl_tigerlake [last unloaded:
hid_multitouch]
[ 3548.917449] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G O
5.11.0-36-generic #40~20.04.1-Ubuntu
[ 3548.917452] Hardware name: HUAWEI KLVD-WXX9/KLVD-WXX9-PCB-B2, BIOS 3.02
07/31/2021
[ 3548.917453] RIP: 0010:_raw_spin_unlock_irqrestore+0x15/0x20
[ 3548.917458] Code: ff 7f 5b 44 89 f0 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc
cc cc 0f 1f 44 00 00 55 48 89 e5 c6 07 00 0f 1f 40 00 48 89 f7 57 9d <0f> 1f 44
00 00 5d c3 0f 1f 40 00 0f 1f 44 00 00 55 49 89 f8 b8 00
[ 3548.917459] RSP: 0018:ffffbc53801e8e30 EFLAGS: 00000287
[ 3548.917462] RAX: 00000000001d462c RBX: ffff9fab00a39ec0 RCX: 00000000000f4240
[ 3548.917463] RDX: 0000000000701f67 RSI: 0000000000000287 RDI: 0000000000000287
[ 3548.917464] RBP: ffffbc53801e8e30 R08: 0000000000000003 R09: 00000000000003d8
[ 3548.917465] R10: ffff9fab00a39f90 R11: ffff9fae708ec3f0 R12: ffff9fae708ec2c0
[ 3548.917465] R13: 0000000000000000 R14: 0000000000000287 R15: ffff9fab00a3aabc
[ 3548.917467] FS: 0000000000000000(0000) GS:ffff9fae708c0000(0000)
knlGS:0000000000000000
[ 3548.917468] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3548.917469] CR2: 0000280406941000 CR3: 000000011d010003 CR4: 0000000000770ee0
[ 3548.917470] PKRU: 55555554
[ 3548.917470] Call Trace:
[ 3548.917471] <IRQ>
[ 3548.917475] try_to_wake_up+0x432/0x5d0
[ 3548.917479] ? __next_timer_interrupt+0x110/0x110
[ 3548.917482] wake_up_process+0x15/0x20
[ 3548.917484] process_timeout+0x12/0x20
[ 3548.917485] call_timer_fn+0x2e/0x100
[ 3548.917487] __run_timers.part.0+0x1e0/0x250
[ 3548.917489] run_timer_softirq+0x2a/0x50
[ 3548.917491] __do_softirq+0xe0/0x29b
[ 3548.917494] asm_call_irq_on_stack+0xf/0x20
[ 3548.917496] </IRQ>
[ 3548.917496] do_softirq_own_stack+0x3d/0x50
[ 3548.917499] irq_exit_rcu+0xa4/0xb0
[ 3548.917503] sysvec_apic_timer_interrupt+0x3d/0x90
[ 3548.917505] asm_sysvec_apic_timer_interrupt+0x12/0x20
[ 3548.917507] RIP: 0010:cpuidle_enter_state+0xdf/0x350
[ 3548.917511] Code: ff e8 d5 bc 77 ff 80 7d d7 00 74 17 9c 58 0f 1f 44 00 00
f6 c4 02 0f 85 52 02 00 00 31 ff e8 48 66 7e ff fb 66 0f 1f 44 00 00 <45> 85 ff
0f 88 e5 00 00 00 49 63 c7 4c 2b 75 c8 48 8d 14 40 48 8d
[ 3548.917512] RSP: 0018:ffffbc5380123e48 EFLAGS: 00000246
[ 3548.917513] RAX: ffff9fae708ec2c0 RBX: 0000000000000003 RCX: 000000000000001f
[ 3548.917514] RDX: 0000000000000000 RSI: 000000002da97f6a RDI: 0000000000000000
[ 3548.917515] RBP: ffffbc5380123e80 R08: 00000333f5fb2b44 R09: 0000000000001e9b
[ 3548.917516] R10: ffff9fae708eaee4 R11: ffff9fae708eaec4 R12: ffffdc537fcc0000
[ 3548.917517] R13: ffffffffbe64d880 R14: 00000333f5fb2b44 R15: 0000000000000003
[ 3548.917519] ? cpuidle_enter_state+0xbb/0x350
[ 3548.917520] cpuidle_enter+0x2e/0x40
[ 3548.917522] call_cpuidle+0x23/0x40
[ 3548.917524] do_idle+0x1df/0x260
[ 3548.917526] cpu_startup_entry+0x20/0x30
[ 3548.917527] start_secondary+0x11f/0x160
[ 3548.917530] secondary_startup_64_no_verify+0xc2/0xcb
[ 3578.737433] i2c_designware i2c_designware.0: controller timed out
[ 3603.474008] i2c_designware i2c_designware.0: controller timed out
[ 4280.051489] i2c_designware i2c_designware.0: controller timed out
[ 4939.572925] i2c_designware i2c_designware.0: controller timed out
[ 4972.885032] i2c_designware i2c_designware.0: controller timed out
[ 5007.028565] i2c_designware i2c_designware.0: controller timed out
[ 5030.740555] i2c_designware i2c_designware.0: controller timed out
[ 5457.621927] i2c_designware i2c_designware.0: controller timed out
[ 5615.764485] i2c_designware i2c_designware.0: controller timed out
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.11.0-36-generic 5.11.0-36.40~20.04.1
ProcVersionSignature: Ubuntu 5.11.0-36.40~20.04.1-generic 5.11.22
Uname: Linux 5.11.0-36-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.20
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Sep 29 10:43:55 2021
InstallationDate: Installed on 2021-09-16 (12 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=fr_FR.UTF-8
SHELL=/bin/bash
SourcePackage: linux-signed-hwe-5.11
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-signed-hwe-5.11 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
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https://bugs.launchpad.net/bugs/1945444
Title:
Touchpad randomly freezes
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