XPS 13-9380, acpi.sys, 25% to 50% cpu usage

If you start the Thunderbolt Software, do you also have the message : "Application is not in use anymore and ca be safely uninstalled" ?

I have also the Thunderbolt Control Center installed and there everything seems ok

Application version: 1.0.16.0

Controller Driver Version: 1.41.613.0

Thunderbolt Generation: Thunderbolt 3 (15D2)

....

I also experience this issue on my new XPS 13, which is interesting as I just replaced an HP Spectre x360 with the XPS 13, and I had the exact same problem with the HP as well.

I spent months troubleshooting the Spectre and never could figure it out. Since it always seemed to happen when I had my external hard drive connected I just assumed there was something about it the Spectre didn't like.

But when it started happening on the XPS 13 I realized it obviously had to do with something about the computer itself.

I think I may have found the steps to reproduce the issue, though. It seems to be fine after a reboot, but once the system goes into hibernate (not just sleep) and is then woken up, plugging anything into a Thunderbolt port causes the high CPU issue.

I realized that the common component between the Spectre and XPS was the Thunderbolt controller. So, after ensuring that I had applied all updates, firmware, drivers, etc, I disabled the Thunderbolt controller in Device Manager, and the issue has not occurred since.

I don't know if this is the exact cause of the issue that other users are describing, but I thought I would post my experience in case it helps anyone else.

Obviously, if you are using Thunderbolt functionality, this work around won't help, but in my case I don't have any Thunderbolt capable devices, so it's no big loss.

Thanks for your posting Craigory1. I have the 30%+ system process / acpi.sys usage problem.

After seeing your posting, I disabled the Thunderbolt controller and this actually immediately triggered the cpu usage problem. To see if it fixed it, I re-enabled the Thunderbolt controller and it promptly crashed the system (blue screen).

I'm not entirely discouraged by this as possibly it suggests that Thunderbolt may be connected with our cpu usage problem.

Nope, after the latest round of Windows updates and Dell updates, the system process / acpi.sys has started running at 30% again, even with Thunderbolt controller disabled. Fixed as usual by hibernating.

keyaertch,

Click the link here to update the thunderbolt controller driver and application as well as the bios update.

just installed, let's see

keyaertch,

Hopefully, that will resolve the issue. 

I'm still having this issue with all the latest drivers and BIOS. Only thing that fixes it is a reboot or hibernate. Very frustrating.

9380

i7 8665

16GB

1TB

keyaertch,

Has your Windows OS updated to the latest version of Windows 10? Reinstall the chipset drivers, reboot and then install the Thunderbolt drivers and the thunderbolt application. 

XPS 9380 Drivers click here

It still happened after updating the thunderbolt driver. Then, I went to "Device Manager" -> "System Devices" -> "Thunder Bolt Controller" -> "Properties" -> "Power Management" and disabled "Allow the computer to turn off this device". It's so far so good now.

My XPS13 also faces the same problem my I connect my USB type c usb hu

After doing this it seems to fix my problem so far 

Confirming that disabling "allow computer to manage power" on thunderbolt device fixes system usage!

Thank you!