Hi, Most likely not a regression as Ice Lake support was just added in v5.4-rc1. @AceLan, I've seen similar issue before and that was fixed by a BIOS/FW upgrade. Can you check if there is newer BIOS/FW for that system and see if it helps? Let's continue debugging on bugzilla. On Tue, Oct 08, 2019 at 11:42:32AM -0500, Bjorn Helgaas wrote: > AceLan, do you know if this is a regression and if so, when it was > introduced? > > ----- Forwarded message from bugzilla-daemon@xxxxxxxxxxxxxxxxxxx ----- > > Date: Tue, 08 Oct 2019 02:56:27 +0000 > From: bugzilla-daemon@xxxxxxxxxxxxxxxxxxx > To: bjorn@xxxxxxxxxxx > Subject: [Bug 205119] New: It takes long time to wake up from s2idle on Dell > XPS 7390 2-in-1 > Message-ID: <bug-205119-41252@xxxxxxxxxxxxxxxxxxxxxxxxx/> > > https://bugzilla.kernel.org/show_bug.cgi?id=205119 > > Bug ID: 205119 > Summary: It takes long time to wake up from s2idle on Dell XPS > 7390 2-in-1 > Product: Drivers > Version: 2.5 > Kernel Version: 5.4-rc2 > Hardware: All > OS: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: PCI > Assignee: drivers_pci@xxxxxxxxxxxxxxxxxxxx > Reporter: acelan@xxxxxxxxx > Regression: No > > Created attachment 285395 > --> https://bugzilla.kernel.org/attachment.cgi?id=285395&action=edit > dmesg log > > 1. Enter s2idle at 28.39s > 2. Press power button at 246.10s > 3. The machine stuck until 412.30s and spit out thunderbolt warning messages > 4. thunderbolt port keeps working after s2idle, plug-in Dell WD19TB > dock(472.45s), and the "boltctl list" shows the dock info correctly. > > BTW, I also found that there are 2 tbt ports on the machine, and if I plug in > one TBT dock, and the wakeup time could be reduced by 80 seconds. And if I plug > in 2 docks in both TBT ports, the machine wakes up from s2idle quick enough as > the normal system. > > I believe the 2 lines are related. > [ 330.388604] thunderbolt 0000:00:0d.3: failed to send driver ready to ICM > [ 412.308083] thunderbolt 0000:00:0d.2: failed to send driver ready to ICM > > -- > You are receiving this mail because: > You are watching the assignee of the bug. > > ----- End forwarded message -----