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Answer» It was working a few days ago. I was not using this laptop since last few days as I have an extra work laptop. So 2 days ago I open it and I didn't get past the login Screen.
System Specs :
Win10 x64
i5 8G RAM
ISSUE:
Touchpad and Keyboard work only in BIOS.
I can press Esc key and get into BIOS and do whatever I want . Hardware Diagnostics is listed over there and I checked mouse and each of my keys and they work fine.
Post boot nothing works (Cant even skip past startup options and have to wait till countdown gets over )
USB Keyboard and mouse works fine for both Linux and Windows
Fingerprint sensor works.
What I have tried so far (and it didnt work) :
Checked already listed issues/troubleshooting on internet forums.
Tried all kinds of drivers.
Uninstalled and resinstalled drivers
Formatted Harddrive and did a clean windows 10 install
Formatted and moved back to Windows 7
BIOS I upgraded months ago so tried to go back to older version but it didnt allow me to go back so reflashed current version as it was working fine since so long
Removed BATTERY and power plug and then pressed power key for 20 secs and then restarted after this.
Tried using VARIOUS Linux Distros on USB.
Reseated Keyboard
BIOS Reset
Intel integrated sensor solution driver Solution Didnt work as Its not listed anywhere in my device manager [Checked both in Win10 and 7] .
I have dedicated a lot of time to this issue. Any help will be appreciated .Very odd issue you have going on. Especially since you booting from a Live Linux Distro from USB does the same issue.
I'd check to see if there are any BIOS updates for this system that may address this otherwise trying to fix it may involve swapping out the laptops keyboard. The fact that all the keys work at BIOS but not at POST is really odd.
One other thing you could try that doesnt come at a cost is if the BIOS allows it, disable the UEFI and set it back to Legacy boot as maybe there is some sort of STRANGE inheritance happening as a result of UEFI that is locking out the keyboard functions.
I had an ASUS Laptop for example that until I disabled UEFI it wouldn't allow keystrokes at boot to skip past PXE Boot etc. So maybe UEFI is involved with this issue.Thanks DaveLembke for the suggestion.. I will try the UEFI one . According to the manufacturer's website my BIOS is the latest version. Lemme come back after disabling UEFI to see if it works. Meanwhile attaching Device Manager and Mouse Driver screenshots for reference :Have you checked Windows 10 isn't defaulting to tablet mode.
Copied from another site
Tablet mode makes Windows 10 more touch-friendly when using your device as a tablet. Select action center on the taskbar (next to the date and time), and then select Tablet mode to turn it on or off.Switched back to Windows 7 ..Still not working there
Quote from: DaveLembke on November 05, 2020, 08:16:51 PM Very odd issue you have going on. Especially since you booting from a Live Linux Distro from USB does the same issue.
I'd check to see if there are any BIOS updates for this system that may address this otherwise trying to fix it may involve swapping out the laptops keyboard. The fact that all the keys work at BIOS but not at POST is really odd.
One other thing you could try that doesnt come at a cost is if the BIOS allows it, disable the UEFI and set it back to Legacy boot as maybe there is some sort of strange inheritance happening as a result of UEFI that is locking out the keyboard functions.
I had an ASUS Laptop for example that until I disabled UEFI it wouldn't allow keystrokes at boot to skip past PXE Boot etc. So maybe UEFI is involved with this issue.
Hi Dave, So far everyone everywhere suggested the driver solution only which I have tried again and again. I got bashed too for posting everywhere the same question . I understand its not good but I hope u understand that its a weird problem I was facing so I was desperate to solve it and it seems u get it that this is not related to drivers as on linux usb stick it should've worked so it would be rude to not reply u back.
Now back to the problem. My BIOS is already set to Legacy boot. There are couple of other options which I would like everyone to have a look at. Also I saw that If in Windows my notebook goes to sleep and when I wake it up my Caps and Num lock blinks once. This happens also at windows start before login screen. I am still operating with Notebook keyboard and touchpad at BIOS easily and can also turn on caps . The light in caps lock also works . Attaching BIOS screenshots for review of current options.At this point only suggestion I have is to try to FIND another laptop like it same model to scavenge for good used parts maybe or get a replacement keyboard and see if that helps. Back in the day of PS2 ports I had an issue with a desktop that had a faulty chip for keyboard controller. Connecting a USB keyboard into your laptop is bypassing this. However the fact that the keyboard works at low level boot and doesnt at higher level is just something you would think is impossible, but stranger things have been known to happen with partially stressed hardware.
If it were my laptop if replacement guts were available free or low cost I would take the chance on swapping out keyboard and touch pad, but otherwise I'd use the laptop with the USB Keyboard and Mouse and get a different laptop for mobile computing that is healthy.
I'd look inside the laptop as well to see if it ever took a spilled drink bath where corrosion might be causing higher level FUNCTION to tap out and only lower level function possible.
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