Kernel input hackers, I recently got a System76 Galaga Pro that I've been having some issues with the touchpad on. One of the main oddities was the following messages: [ 784.876080] psmouse serio2: TouchPad at isa0060/serio2/input0 lost synchronization, throwing 4 bytes away. [ 794.324013] psmouse serio2: TouchPad at isa0060/serio2/input0 lost synchronization, throwing 4 bytes away. [ 820.126753] psmouse serio2: TouchPad at isa0060/serio2/input0 lost synchronization, throwing 4 bytes away. [ 828.493701] psmouse serio2: TouchPad at isa0060/serio2/input0 lost synchronization, throwing 4 bytes away I did notice the following message today: [ 631.408929] psmouse serio2: synaptics: Your touchpad (PNP: SYN1221 PNP0f13) says it can support a different bus. If i2c-hid and hid-rmi are not used, you might want to try setting psmouse.synaptics_intertouch to 1 and report this to linux-input@vger.k ernel.org. I'm currently running on the 4.13.3 kernel. I set synaptics_intertouch=1 in /etc/modprobe.d/psmouse.cconf and then did an rmmod psmouse && modprobe psmouse, which seems to have helped with those synchronization messages. It did trigger the following though: [ 948.079251] ------------[ cut here ]------------ [ 948.079269] WARNING: CPU: 2 PID: 137 at drivers/gpu/drm/i915/intel_display.c:12844 intel_atomic_commit_tail+0xf6f/0xf80 [i915] [ 948.079269] Modules linked in: psmouse hid_rmi rmi_core tun rfcomm xt_nat xt_tcpudp veth vxlan ip6_udp_tunnel udp_tunnel iptable_mangle xt_mark fuse ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter xt_conntrack nf_nat nf_conntrack libcrc32c crc32c_generic br_netfilter bridge stp llc overlay joydev mousedev snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic bnep snd_soc_skl snd_soc_skl_ipc arc4 snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core snd_soc_sst_match snd_soc_core snd_compress snd_pcm_dmaengine ac97_bus iTCO_wdt iTCO_vendor_support snd_hda_intel i915 snd_hda_codec intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp uvcvideo videobuf2_vmalloc videobuf2_memops [ 948.079294] videobuf2_v4l2 iwlmvm videobuf2_core mac80211 kvm_intel nls_iso8859_1 drm_kms_helper videodev nls_cp437 snd_hda_core vfat fat snd_hwdep media iwlwifi kvm drm snd_pcm irqbypass snd_timer intel_cstate mei_me intel_rapl_perf evdev input_leds led_class mac_hid snd intel_gtt pcspkr hci_uart cfg80211 syscopyarea soundcore sysfillrect sysimgblt fb_sys_fops btusb btrtl rtsx_pci_ms i2c_i801 mei memstick r8169 i2c_algo_bit btbcm mii btqca btintel intel_pch_thermal shpchp tpm_tis tpm_tis_core tpm wmi thermal bluetooth ecdh_generic intel_lpss_acpi i2c_hid rfkill pinctrl_sunrisepoint video pinctrl_intel hid intel_lpss battery ac acpi_pad button sch_fq_codel sg crypto_user ip_tables x_tables algif_skcipher af_alg rtsx_pci_sdmmc mmc_core serio_raw atkbd libps2 crct10dif_pclmul crc32_pclmul crc32c_intel [ 948.079328] ghash_clmulni_intel pcbc aesni_intel crypto_simd glue_helper cryptd ahci libahci xhci_pci libata nvme nvme_core xhci_hcd rtsx_pci scsi_mod usbcore usb_common i8042 serio aes_x86_64 ext4 crc16 mbcache jbd2 fscrypto dm_crypt dm_mod dax [last unloaded: psmouse] [ 948.079341] CPU: 2 PID: 137 Comm: kworker/u8:3 Not tainted 4.13.3-1- ARCH #1 [ 948.079342] Hardware name: System76 Galago Pro/Galago Pro, BIOS 1.05.06RSA 07/12/2017 [ 948.079355] Workqueue: events_unbound intel_atomic_commit_work [i915] [ 948.079356] task: ffffa08428104d80 task.stack: ffffbbb741e4c000 [ 948.079367] RIP: 0010:intel_atomic_commit_tail+0xf6f/0xf80 [i915] [ 948.079368] RSP: 0018:ffffbbb741e4fd88 EFLAGS: 00010282 [ 948.079369] RAX: 000000000000001c RBX: 0000000000000000 RCX: 0000000000000000 [ 948.079369] RDX: 0000000000000000 RSI: ffffa0843ed0dc78 RDI: ffffa0843ed0dc78 [ 948.079370] RBP: ffffbbb741e4fe40 R08: 0000000000000395 R09: 0000000000000004 [ 948.079370] R10: ffffbbb741e4fd88 R11: 0000000000000001 R12: 000000000000db7a [ 948.079371] R13: ffffa0842abe0000 R14: ffffa08429370000 R15: 0000000000000001 [ 948.079372] FS: 0000000000000000(0000) GS:ffffa0843ed00000(0000) knlGS:0000000000000000 [ 948.079373] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 948.079373] CR2: 00000fbfa4a35000 CR3: 0000000370a09000 CR4: 00000000003406e0 [ 948.079374] Call Trace: [ 948.079378] ? dequeue_task_fair+0x49f/0x640 [ 948.079379] ? wait_woken+0x80/0x80 [ 948.079391] intel_atomic_commit_work+0x12/0x20 [i915] [ 948.079393] process_one_work+0x1de/0x430 [ 948.079394] worker_thread+0x47/0x3f0 [ 948.079396] kthread+0x125/0x140 [ 948.079397] ? process_one_work+0x430/0x430 [ 948.079398] ? kthread_create_on_node+0x70/0x70 [ 948.079400] ret_from_fork+0x25/0x30 [ 948.079401] Code: ff ff ff 48 83 c7 08 e8 20 54 3c c8 4c 8b 85 70 ff ff ff 4d 85 c0 0f 85 7b fa ff ff 8d 73 41 48 c7 c7 b8 ac dc c0 e8 82 0a 3e c8 <0f> ff e9 65 fa ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 [ 948.079422] ---[ end trace f49dd79648f7efcd ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
