Keyboard error

[bambuli]

After a Windows Firmware update the usb keyboard stop work...

Update (HP - Firmware - 2.15.12.0)

PC HP 400 G9 R TOWER 99P21ET i5-13500 16GB SSD512GB DVD

[BeemerBiker]

Version 2.15.20 was released just today:  Oct 18, 2024

https://support.hp.com/us-en/drivers/swdetails/hp-pro-tower-400-g9-pci-desktop-pc/2100963611/swItemI...

The intel USB was mentioned in the fix.

Does the keyboard work in BIOS and UEFI?

Have you run diagnostics?
Tap the ESC key after powering on. . Tap it once a second after you see the LEDs on the keyboard flash. When you see the startup menu, press F2 to run diagnostics.

If the keyboard works, try to install the new bios

If you fail diagnostics do not attempt a bios upgrade or you might permanently damage the PC.

After bios upgrade do the CMOS reset

Follow the steps below to reset computer CMOS data.

1. Turn off the computer.
2. Press and hold the Windows and the V keys.
3. While still pressing those keys, press and hold down the Power button on the computer for 2-3 seconds.
4. Release all the keys.
5. At the completion of a successful CMOS reset, a message showing CMOS Reset (502) will be displayed.
6. Restart the computer.
7. Press F10 to get in to bios. Check Date and time.
8. Press F9 to set bios defaults. Ensure secure boot is enabled.
9. save setting when you exit

If you do not see that 502 message then :

• Turn on the computer by holding the power button down for 20 full seconds then release.
• Press the Power button one more time (if necessary) to start the computer.
• Tap the ESC key about once a second after you see the LEDs on the keyboard flash.
• Do steps 7-9 above

Let me know what happens.

[bambuli]

Hi, I installed the latest update released yesterday but unfortunately this also doesn't solve the problem.

The keyboard continues to be recognized as PS2.

We have received confirmation from the supplier that other desktops in the same series have the same problem

[BeemerBiker]

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@bambuli wrote:

The keyboard continues to be recognized as PS2.

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you wrote that it was not working.

Does the keyboard work during UEFI test ?  If so then the problem is windows.

PS2 is the default keyboard.  if you want a different keyboard you need to change the keyboard or the language or both

UEFI language change

Here is how to fix it:

Boot into the UEFI diagnostics F2.
From up to down - the Language option is the fifth (5th) - select it.
For your reference- the 6th one (last one) is exit. So, select 5th.
On the next screen - English language should be the one on top.

 windows keyboard change

Open Region and Language by clicking the Start button , clicking Control Panel, clicking Clock, Language, and Region, and then clicking Region and Language. Click the Keyboards and Languages tab. Under Display language, choose a language from the list, and then click OK.

[bambuli]

Hi, I probably expressed myself badly, the keyboard works perfectly on the BIOS and on the temporary one, the problem is obviously Windows and the Windows drivers but the problem is caused by the latest HP firmware update. 

[bambuli]

I found the solution that worked for me:
after the update the registry key: Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e96b-e325-11ce-bfc1-08002be10318} was modified by adding a HP filter.
I removed the HP line from the "UpperFilters" value and left only "kbdclass" and after rebooting everything works correctly!