[Solved] Xorg Abort With Signal 6

[PoissonAerohead]

Hi. I am making my way through a Gentoo install for a home built machine for the HD TV. I have done a test installation of Gentoo on an old laptop, so I am somewhat familiar with the process, but I am new to getting a real graphics card to work. I believe I just solved the linux-firmware issue (I asked about that on the Gentoo Installation forum), rebuilt the kernel with the amdgpu drivers and firmware built in, and am logged into the system in text mode with the font noticeably different than it was before the drivers and firmware were present. Additionally, /dev/dri/ and /dev/dri/card0 are now present (neither were before building in the drivers and firmware).

For reference, my graphics card is a Sapphire Radeon RX 550. I followed the instructions here (https://wiki.gentoo.org/wiki/AMDGPU) with the caveat that RX 550 is listed as both Polaris 11 and Polaris 12 (possibly an error?). I researched online and found other sources say RX 550 is Polaris 12 so I used that list of firmware.

Given that I now have /dev/dri and the font looks different, I was hoping this would be it and startx would lauch, but it is failing again now. Please see the Xorg.0.log below:

[PoissonAerohead]

Cancel this. In reading through my Xorg.0.log again I found it. For future reference, the issue for me was caused by the version of the Xorg server I was running having been compiled against the prior kernel configuration. I was actually wondering if I was giving too much backstory in my post, but I guess it is true that everything can be relevant.

The simple explanation is that I built the X server with a kernel that did not have the amdgpu drivers or firmware included. I then ran into the issue that the card was not even recognized, and so figured out how to add the drivers and firmware.

After this, the card was recognized. However, the X server on my system was built against the prior kernel. I built the x11-base/xorg-server package and startx launched correctly.

Unfortunately, while I correctly get into twm with the three xterms and the xclock open, there is no keyboard or mouse input. I tried rebuilding the other x packages and libinput but this did not solve the problem. The xorg.0.log has a bunch of:

Warning, couldn't open module libinput
Failed to open module "libinput" (module does not exist, 0)
No input driver matching "libinput"
Falling back to input driver "libinput"

I am betting this has something to do with it. As this is technically unrelated, should I open a different thread?

EDIT:
This is definitely a problem. I just checked on the test Gentoo installation I did on my old laptop and there is one "(II) LoadModule: libinput" and the log never says anything again, just refers to the module for the various events.

[pietinger]

Maybe you are missing the kernel settings. Look here:
https://wiki.gentoo.org/wiki/Libinput
https://wiki.gentoo.org/wiki/USB/Guide#Config_options_for_the_kernel

[Tony0945]

After you change a kernel run "emerge @module-rebuild" That should rebuild X stuff that depends on the kernel as well as any out of kernel modules like nvidia-drivers or r8169
I do the whole thing (change directories run make oldconfig run make config build and rebuild modules ) in a script in /usr/local/sbin.
For systems still running grub, I print a remember on the screen to update /boot/grub/grub.conf. One more adept with shell than I could do that right in the script like genkernel does.

[PoissonAerohead]

Thank you for the suggestions, but I already checked my kernel config files and the emerge @module-rebuild you suggested did not update anything (thanks for the command though).

Since I have the test installation on the old laptop, I read through the xorg log file and found the the libinput module should be at /usr/lib64/xorg/modules/input/libinput/libinput_drv.so

I checked on my new computer and neither this shared object file nor the containing directory (input/) were present. I checked