My CPU is at 100% usage

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1

I recently installed manjaro and noticed that my CPU stays at around 95-98% usage and it is mainly because of this process “irq/124-aerdrv”. I don’t know how to solve this issue so if you could help I would be very grateful. I am using a dualcore intel i5 7th gen cpu and an nVidia 920MX. I am also on a laptop.

2

can you boot on USB live manjaro
open a terminal

inxi -Fza 
sudo journalctl -b0 -p4
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3

I got the results but i can’t copy paste them here so here they are on paste bin

4

tri with add on boot kernel :
“pci=noaer” or “pci=nomsi”

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5

I tried both but it still didn’t work. Any other solutions?

6

try to update your UEFI

7

How and from where. Sorry I am new to this but afaik i can’t find the bios file nessecary for the update so if you could help that would be awesome

8

Should be this one:

https://www.asus.com/US/supportonly/X541UVK/HelpDesk_BIOS/

There is first the Windows one, but it is a exe and can’t be used on linux. You will need to download the second one, extract the zip file to a flash drive with fat32 formated and boot into your UEFI. There you should be able to update the UEFI by grabing the file at the menu.

To update the BIOS:

  1. Verify the Notebook PC’s exact model then download the latest BIOS file for your model from the ASUS website.
  2. Save a copy of the downloaded BIOS file to a flash disk drive.
  3. Connect your flash disk drive to your Notebook PC.
  4. Restart your Notebook PC then access the BIOS settings.
  5. From the BIOS menu, select Advanced > ASUS EZ Flash 3 Utility, then press ENTER.

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9

I updated it. Nothing changed. I still have that process running. I tried the “pci=noaer” and “pci=nomsi”, still nothing. I even tried a “pci=nommconf”. Nothing changes and my CPU is still at a 97% usage because of that process. Any other suggestions?

10 
MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details.
мар 26 12:24:28 hmc kernel:  #3
мар 26 12:24:28 hmc kernel: ENERGY_PERF_BIAS: Set to 'normal', was 'performance'
мар 26 12:24:28 hmc kernel: i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp
мар 26 12:24:28 hmc kernel: usb: port power management may be unreliable
мар 26 12:24:34 hmc kernel: tpm_crb MSFT0101:00: [Firmware Bug]: ACPI region does not cover the entire command/response buffer. [mem 0xfed40000-0xfed4087f flags 0x200] vs fed40080 f80
мар 26 12:24:34 hmc kernel: tpm_crb MSFT0101:00: [Firmware Bug]: ACPI region does not cover the entire command/response buffer. [mem 0xfed40000-0xfed4087f flags 0x200] vs fed40080 f80
мар 26 12:24:34 hmc kernel: i2c_hid i2c-ELAN1200:00: supply vdd not found, using dummy regulator
мар 26 12:24:34 hmc kernel: i2c_hid i2c-ELAN1200:00: supply vddl not found, using dummy regulator
мар 26 12:24:34 hmc kernel: r8169 0000:02:00.2: can't disable ASPM; OS doesn't have ASPM control
мар 26 12:24:34 hmc kernel: kauditd_printk_skb: 12 callbacks suppressed
мар 26 12:24:37 hmc kernel: bluetooth hci0: Direct firmware load for rtl_bt/rtl8723b_config.bin failed with error -2
мар 26 12:24:39 hmc kernel: kauditd_printk_skb: 10 callbacks suppressed
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this also appeared when i logged the errors with the second command the first guy mentioned

12

Can you switch to an LTS kernel like 5.4 and check if the problem persists?

Also, I have had issues with nouveau driver and CPU usage spikes. I had to switch to the proprietary driver to solve the issue.

13

OMG THIS WORKED. I installed it and then I added the line is needed like pci=noaer, pci=nomsi and pci=nommconf. After that I rebooted and the process is GONE. THANK YOU EVERYBODY

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