Touchpad not working on gentoo-sources but working on *-dist

[heppen]

Hi

I'm struggling with kernel compilation. Currently I'm using

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Linux gentoo 5.14.7-gentoo-dist

kernel and everything works just fine.

However, I want to compile my own kernel. What I'm doing?
First, I'm selecting second kernel

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eselect kernel set 1

then I'm copying .config file

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cp /usr/src/linux-5.14.7-gentoo-dist/.config /usr/src/linux

next I'm running this commands

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make oldconfig
make localmodconfig

and in the end, genkernel:

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genkernel --oldconfig --clean --microcode=amd all

after successfully compiled kernel, I'm ending with grub update

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grub-mkconfig -o /boot/grub/grub.cfg

System booting up OK but... touchpad is not working anymore.
When I switch back to *-dist kernel, touchpad is working. What I'm doing wrong? From what I understand, after copying previous .config file, kernel should compile with same options. I'm using localmodconfig to clean it a little bit but I tried without this command and result was the same :/

Any advice? Thanks

[heppen]

Ok, I was able to compile kernel and touchpad works^^

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Linux gentoo 5.14.7-gentoo-x86_64 #1 SMP Fri Sep 24 13:37:16

After oldconfig I ran genkernel with menuconfig and selected few modules.

If there will be new kernel release I will do only oldconfig and everything will be working or I'll have to enable those modules again?

[Makersmarx]

Just copy over your config and all will stay intact. For example when I upgrade I use this cp /usr/src/linux-CURRENT-RUNNING-KERNEL-gentoo/.config /usr/src/linux/. Here are the docs for ref for future upgrades. Glad you got things running! https://wiki.gentoo.org/wiki/Kernel/Upgrade

[heppen]

Just copy over your config and all will stay intact. For example when I upgrade I use this cp /usr/src/linux-CURRENT-RUNNING-KERNEL-gentoo/.config /usr/src/linux/. Here are the docs for ref for future upgrades. Glad you got things running! https://wiki.gentoo.org/wiki/Kernel/Upgrade

Thanks! I'm learning a lot by using Gentoo, that's why I love this distro and think it's awesome

I will keep current .config as long as I can since everything seems to working just fine.

btw. I found that command to copy .config file

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zcat /proc/config.gz > .config

ofc. when you are in /usr/src/linux directory