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Massimo B.
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 Posted: Wed Feb 12, 2025 10:37 pm Post subject: [SOLVED] Backspace stopped working |
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Hi,
recently my backspace key stopped working. Booting into Windows it works as usual.
showkey says keycode 445 which is unusual.
It affects X and also the Virtual konsole. I'm running 6.6.74-gentoo-dist. Rebooting previous working kernels does not solve it.
Any idea?
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HP ZBook Power G9 i7-12700H|HP ProDesk 600 G5 i7-9700|HP EliteDesk 800 G1 i7-4790|HP Compaq Pro 6300 i7-3770
Last edited by Massimo B. on Thu Mar 20, 2025 1:04 pm; edited 1 time in total |
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Massimo B.
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| Posted: Fri Feb 14, 2025 9:04 am Post subject: |
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I'm lost with this silly bug. I tried all like fn+backspace fn+ESC, fn+F1 to F12 for toggling some fn lock or something...
xev doesn't show anything on backspace or fn+backspace, while showkey shows "keycode 445 press". That is already weird. | Code: | # setxkbmap -query
rules: evdev
model: pc102
layout: de
variant: deadgraveacute |
https://raw.githubusercontent.com/torvalds/linux/refs/heads/master/include/uapi/linux/input-event-codes.h has … | Code: | | #define KEY_PICKUP_PHONE 0x1bd /* Answer incoming call */ |
That is even weirder, I'm out of ideas.
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Massimo B.
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| Posted: Tue Feb 25, 2025 7:33 am Post subject: |
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Booted OpenSuse Live and backspace is working there. So it's definitely some bug or misconfiguration on my Gentoo installation
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CooSee
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| Posted: Tue Feb 25, 2025 9:19 pm Post subject: |
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what kind of device are you using ?
some kind of a game-key - which you accidentally activated ?
| Quote: | | Booted OpenSuse Live and backspace is working there |
try with current Gentoo ISOs - if it's working - compare lsmod and some other settings, regarding keyboard.
I'll keep my fingers crossed.
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" Der Mensch ist von Natur aus neugierig, was am Ende übrig bleibt ist die Gier " |
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Massimo B.
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Location: PB, Germany
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| Posted: Wed Mar 05, 2025 10:32 pm Post subject: |
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I got to test the Gentoo LiveDVD distribution, and the backspace is working there as usual. So it's still some misconfiguration on my Gentoo installation.
It's the HP ZBook, I'm using the binary distribution kernel sys-kernel/gentoo-kernel-bin-6.12.16, so I don't think it's some kernel misconfiguration.
Meanwhile I'm going to get used to the missing backspace and using awful workarounds so severely that I noticed doing the same strains on healthy desktops as well… 
I'm not aware of any alternation or configuration for that backspace key. It does not belong to any fn-combination or numpad or something.
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CooSee
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Massimo B.
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| Posted: Wed Mar 19, 2025 10:15 pm Post subject: |
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I'm going to collect all mods that I have done and which might affect the keyboard...
Some parts of this might be residuals from the old past and should be reviewed anyway: | Code: | # grep GRUB_CMDLINE_LINUX_DEFAULT /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="rd.vconsole.font=ter-u12n rd.vconsole.keymap=de-latin1-nodeadkeys rd.locale.LANG=de_DE.UTF-8 rd.lvm=0 rd.md=0 rd.dm=0 rd.luks.uuid=dc... rd.luks.allow-discards=dc... root=LABEL=gentoo rootflags=subvol=volumes/root i8042.noloop i8042.nomux i8042.nopnp i8042.reset mem_sleep_default=deep threadirqs" |
Following should only affect Xorg and not the console, so it should not be responsible: | Code: | # cat /etc/X11/xorg.conf.d/90-keyboard.conf
Section "InputClass"
Identifier "keyboard-all"
Driver "evdev"
Option "XkbLayout" "de"
#Option "XkbModel" "pc105"
MatchIsKeyboard "on"
EndSection |
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CooSee
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| Posted: Wed Mar 19, 2025 11:24 pm Post subject: |
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| Quote: | | I got to test the Gentoo LiveDVD distribution, and the backspace is working there as usual. So it's still some misconfiguration on my Gentoo installation. |
and you used the same grub boot options while booting LiveDVD ?
is your BIOS current ? - if yes, have you tried by resetting your BIOS to default settings ? <<< most BIOS have Backup Option of current settings <<< use it before reset !
what if you change your keyboard to a different Lang, e.g. US ? <<< same issue ?
what if no 90-keyboard.conf at all ?
or, have you tried with libinput ?
please provide the exact Modell-Nr. of your device, because there are so many G9's.
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Massimo B.
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| Posted: Thu Mar 20, 2025 9:16 am Post subject: |
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I did not use my grub options and CMDLINE when booting LiveDVD, I used the LiveDVD as provided.
BIOS is up to date... But migrating my Gentoo installation to other and also later HP models with different BIOS I always get the same issue, so I tend to think it's really based on my Gentoo setup.
On X and Xfce, switching to English keyboard layout doesn't solve the Backspace issue which also exists on console outside of X, so also removing the xorg.conf doesn't solve it.
libinput, good point, I'm going to migrate almost all pointer devices, mice touchpads to libinput. Anyway it doesn't solve the backspace issue as libinput is a X thing.
As almost all HP machines are affected when I take my identical Gentoo setup, the model nr. should not matter.
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Massimo B.
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| Posted: Thu Mar 20, 2025 1:06 pm Post subject: |
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-> SOLVED
Dropping all i8042.* from CMDLINE solved it. Not sure why I added these some day in the past as a workaround for something else.
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CooSee
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| Posted: Thu Mar 20, 2025 11:36 pm Post subject: |
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| Massimo B. wrote: | -> SOLVED
Dropping all i8042.* from CMDLINE solved it. Not sure why I added these some day in the past as a workaround for something else. |
glad to hear !
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