ProBook 450 with high CPU usage

[Chocholous]

Now, I'm almost sure that audio driver (9.0.180.10) is cause of issue. After wake notebook from sleep the CPU has high usage and then when I DISABLE Conexant ISST Audio device in the Device manager, CPU usage immediately drops to zero. Enabling device usually (not always) raises CPU usage again. We need bugyless driver or newer bios!

[ju1c3]

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@Chocholouswrote:

Now, I'm almost sure that audio driver (9.0.180.10) is cause of issue. After wake notebook from sleep the CPU has high usage and then when I DISABLE Conexant ISST Audio device in the Device manager, CPU usage immediately drops to zero. Enabling device usually (not always) raises CPU usage again. We need bugyless driver or newer bios!

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Mine is fine on 9.0.180.10 and it breaks if I try and use 9.0.196.60 from https://www.catalog.update.microsoft.com/Search.aspx?q=conexant+isst

Maybe it is the chipset driver for Intel Smart Sound Technology Audio Controller under System in device manager. What is everyones driver version there? 

[ArtemSnezhny]

My laptop has:

- Intel Smart Sound - OED 9.21.0.3229 from Dec 20 2017

- Intel Smart Sound - audiocontroller 9.21.0.3229 from Dec 15 2017

[Chocholous]

@ArtemSnezhny I checked Intel Smart Audio drivers and I have same version (9.21.0.3229) 😞

Which version of BIOS do you have?

[ju1c3]

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@Chocholouswrote:

@ArtemSnezhny I checked Intel Smart Audio drivers and I have same version (9.21.0.3229) 😞

Which version of BIOS do you have?

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01.00.05 Rev.A

[ArtemSnezhny]

In the system information it is a HP Q85 Ver.01.02.04 from 30-Jan-18

[Srasta]

Hello, same here : I bought the OMEN 2 weeks ago (HP Laptop 15-ce0xx) and I have a little trouble since I bought it and even updating all the drivers via the wizard HP nothing changed.

The problem comes from the system process (acpi.sys 0x21cbo) that use the CPU constantly in the range of 20-25% all the time:

-I already updated the bios that all drivers

- i launched the command sfc / scannow nothing found either

-deactivate energy saving in power management

-deactivate driver by driver to see if the system would return to normal ...
*
The only way to restart the PC or go to the night before and after the use of this system.

unless i turn off the computer completely and i am the beginning later i left again i have to redo the same thing chose everyday to start worrying and following up for the power to be quiet.


I know that you are touching several people on the forum HP is about this problem... look at screenshots 😞

[Johnny_W]

Hello,
I'm having the same problems with my Probook 450 G5. The system process is always on about 20-25% CPU load. Similarly, the Flow.exe takes 15% CPU when Firefox is started.
I have already replaced some drivers, even with the Intel Support Assistant updating the drivers. But without success.
I then created a ticket at HP support. First condition of HP was to reinstall the laptop with the Recovery Tool. That did not solve the problem.

HP has now informed me, that I would have to wait until the end of May, because HP and Microsoft are working on the problem.
Currently I have only this workaround:
- Deactivate Fastboot in Windows.
- All power settings (hibernation, standby) off.
- Rename the Flow.exe.

I hope there will be a solution soon!

[cakam]

Hello Johnny_W,

thanks for the positive message. What was preventing me to return the notebook was its 16GB RAM that I need and time to handle the return. Now I have a hope it'll be solved by MS/HP.

[ju1c3]

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@Johnny_Wwrote:

HP has now informed me, that I would have to wait until the end of May, because HP and Microsoft are working on the problem.

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They actually said this? Do you have a ticket we can refer to so I can pass it along to our HP rep to ask about?