Created attachment 798468 [details]
lspci, dmesg, xorg.0.log

No more trackpad after suspend/resume on Dell precision 5520, I have to plug a
mouse in.
Kernel in use : 4.12.14-lp151.21-default

In dmesg:

[   52.257619] ACPI: Waking up from system sleep state S3
[   53.861606] PM: noirq resume of devices complete after 88.504 msecs
[   53.863107] i2c_designware i2c_designware.0: Unknown Synopsys component
type: 0x00000000
[   53.863127] i2c_designware i2c_designware.1: Unknown Synopsys component
type: 0x00000000
[   53.863305] PM: early resume of devices complete after 1.622 msecs
[   53.863558] ACPI : EC: event unblocked
[   53.864503] sd 1:0:0:0: [sda] Starting disk
[   53.968832] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444
[ IBUS ]
[   54.070268] nvme nvme0: Shutdown timeout set to 8 seconds
[   54.097795] usb 1-4: reset full-speed USB device number 2 using xhci_hcd
[   54.178224] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[   54.191092] ata2.00: ACPI cmd ef/10:06:00:00:00:00 (SET FEATURES) succeeded
[   54.191094] ata2.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK)
filtered out
[   54.191096] ata2.00: ACPI cmd b1/c1:00:00:00:00:00 (DEVICE CONFIGURATION
OVERLAY) filtered out
[   54.202908] ata2.00: ACPI cmd ef/5a:00:00:00:00:a0 (SET FEATURES) succeeded
[   54.231875] i2c_designware i2c_designware.1: i2c_dw_handle_tx_abort: lost
arbitration
[   54.264912] ata2.00: ACPI cmd ef/10:06:00:00:00:00 (SET FEATURES) succeeded
[   54.264919] ata2.00: ACPI cmd f5/00:00:00:00:00:00 (SECURITY FREEZE LOCK)
filtered out
[   54.264924] ata2.00: ACPI cmd b1/c1:00:00:00:00:00 (DEVICE CONFIGURATION
OVERLAY) filtered out
[   54.265227] ata2.00: ACPI cmd 00/00:00:00:00:00:a0 (NOP) rejected by device
(Stat=0x51 Err=0x04)
[   54.302502] ata2.00: configured for UDMA/133
[   54.385667] usb 1-12: reset high-speed USB device number 3 using xhci_hcd
[   55.257628] i2c_designware i2c_designware.1: controller timed out
[   55.257655] i2c_hid i2c-DLL07BF:01: failed to change power setting.
[   55.257667] dpm_run_callback(): i2c_hid_resume+0x0/0xf0 [i2c_hid] returns
-110
[   55.257675] PM: Device i2c-DLL07BF:01 failed to resume async: error -110
[   55.257889] PM: resume of devices complete after 1394.707 msecs