High CPU Usage - System/ACPI.sys - GPE.L6F Storm [Omen 15/17/Zbook 17 G5/Other HP Devices]

[MaPo31415]

Oh, yet another Zbook 17 G5 user dealing with the same problem. I guess that we're a minority on this forum as very few people bought this laptop for a personal use. Since you initiated HP Support, they're obligated to fix your issue. Forward them to this thread - it has loads of diagnostics and serves as a proof that the problem is widespread, related to firmware, thus they should not request you to perform a replacement until they prove that firmware is OK (replacement WOULD NOT help if the FW is messed up, this makes sense, doesn't it?).

[Christoph_W]

I wrote today this link to the HP Support. Let's see...

I think, a replacement would not help!

For my person, the Zbook G5 17 is a working machine with a lot of software, such as Inventor and 3DSmax. I'm not really happy about this Notebook, because I had before a ZBook G2 17. With this old machine I had never any problem.

[MaPo31415]

I managed to be able to use this machine without l6f storm, but the downside of my method is that I'm unable to turn off my display, since it also triggers the problem. Mileage may vary, as I'm not using external display, dock nor eGPU.

[Christoph_W]

I'm using an external 4K-monitor with a dock. The second display card is a Quadro Nvidia P3200. May be, that's different to the other notebooks.

[MaPo31415]

@JeffHelp

Hi Jeff, could you tell me what is the internal priority of this issue and which Firmware Families are under the scope of investigation?

[MaPo31415]

[Jay889]

Lol

I don't think we'll ever have a public response nor an update.

[Arv55]

Hi guys. I am another Hp omen user facing the same situation. My CPU temperature goes 60 degree plus even when idle. This usually happens when I resume from hibernation or sleep. Only recently I followed instructions on the internet and found a file "acpi.sys+0x42f50" which is using like 20% of CPU. I stumbled upon this page while looking for this answers in google. I am not an expert like "MaPo31415", these are all the information I could gather about my PC. Hope the problem gets resolved.

Product number

2GQ08EA

Product name

OMEN by HP - 15-ce003na

Microprocessor

Intel® Core™ i7-7700HQ (2.8 GHz base frequency, up to 3.8 GHz with Intel® Turbo Boost Technology, 6 MB cache, 4 cores)

Chipset

Intel® HM175

Memory, standard

16 GB DDR4-2400 SDRAM (2 x 8 GB)

[MaPo31415]

Hi Arv55, thanks for reaching out to us, let's check whether this is the same issue for now.

We're going to call this "System" CPU usage problem "interrupt storm" for now, so I don't have to reiterate.

1. Does interrupt storm stop immediately after you put your laptop to sleep and wake it up afterwards? (Use Task Manager to verify this, nominal CPU usage of "System" process should be no larger than 1%, but may oscillate during Windows Update etc. - that is - when your system actually does something useful. You can also switch your CPU usage chart to the logical view, that would show usage across cores - typically this issue saturates entire single core to 100%, also c-states are affected, that's why your laptop gets hot).

2. If 1. is true, please follow instructions I provided for capturing occurrences of interrupt storm without doing anything high tech such as running a debug of kernel dump:

https://h30434.www3.hp.com/t5/Gaming-Notebooks/High-CPU-Usage-System-ACPI-sys-GPE-L6F-Storm-Omen-15-...

I'm looking forward to hearing from you soon!

Also, If you already initiated HP Support via HP Support Assistant, please point them to this thread - this is necessary for them to acknowledge that this is a widespread problem and not a hardware defect of your device - otherwise you'd need to deal with hardware replacement that would just waste your time, because firmware is loaded ONTO hardware, and botched firmware is the actual culprit of our issues.

[Arv55]

Actually I noticed that the problem occurs when I resume from hibernation or sleep. Usually I do a restart which resolves the issue immediately. Because of this issue, I was afraid to put the PC in hibernation or sleep and I always shut down my PC. 

Some times I hibernate by mistake and found this problem upon turning the PC on. Recently, I tried to track down the problem  and found system process in task manager using around 20% CPU even when idle. Following instructions on the web, I used a Process explorer and found the file responsible for the problem. It was under system process and it's name was "acpi.sys+0x42f50".

I will capture occurrences of interrupt storm like you asked, the next time this problem occurs. I will also contact HP support and point them to this thread. No worries.