XFCE failing to launch after reboot.

[Borsch]

Greetings, as I promised here I am yet again with a new issue

I have been using XFCE ever since recently installing gentoo. Was phasmophobia one night with a friend, somehow my system crashed, and after that the startxfce4 command in the tty only brings up a black screen with a mouse.

I have found that wiping the .config/xfce/ folder seems to fix it and allows me to launch again however it is quite an annoying thing to do. I have looked at dmesg and a few other things, have reinstalled the entire system. However I cannot quite figure out what may be causing this.

I would appreciate any help or assistance I could recieve. Do not be afraid to ask me to do things (altho I might need a bit of expaining)

Kind regards,
Borsch

[Banana]

Do I understand it correctly, that it is working after you cleaned ~/.config/xcfce?

If a system is crashing, which can be "anything", it can happend that files don't get removed, successfully written or something is deleted.
Without any more information or the exact error messages, there is no definitve answer to your problem.

[Borsch]

Yes, doing:

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rm -r ~/.config/xfce

allows me to then

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startxfce4

again.

However rebooting my system gives me the same issue, I've checked dmesg and X logs and I can't find anything that strikes me as the cause. I don't quite know where to look anymore for potential errors.

[NeddySeagoon]

Borsch.

A couple of things.
Gentoo does not have issues, only learning opportunities :)
Do not reinstall gentoo, it never fixes anything and you can discover more learning opportunities than you started with.

Instead, narrow the problem space by sharing logs and asking for guidance.
It's likely that first responders will want more information so they will tell you what and how to provide it.

You have 5 virtual terminals.
Ctrl-Alt-Fn where n is the console you want switches between them.
Fn being F1 to F5. Xorg may be on the 7th VT but you cannot log in there.

With the system working normally, switch to an unused VT, log in, then use wgetpaste to post dmesg and your Xorg.0.log file.
Now provoke the error condition and post dmesg and Xorg.0.log again.
Tell us the four pastebin links so we can see what you see.
We can narrow it down from there. Maybe :)

[Borsch]

I understand,

was unsure if dmesg would be required, but I assume it is a bit of a general starting point for debugging?

Similarly, are Xorg logs the starting point for any graphical enviroment issue?

Here are both of the logs as requested, let me know if you need anything else.

dmesg output: https://bpa.st/XVRA

Xorg.0.log: https://bpa.st/DRSQ

Apologies for the additional clarifications I've required.

[Banana]

Please also provide the output of emerge --info.

The last logs you shared, are those the logs when the error happens?

[Borsch]

The logs are from when the error happens yes, after starting the system and running "startxfce4".

Here is the output of emerge --info

https://bpa.st/SDSA

Kind regards.

[pietinger]

[...] somehow my system crashed, [...]

I would like to know more about that ... because ... you have an error in the boot error record table

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[    0.697687] BERT: [Hardware Error]: Skipped 1 error records
[    0.697818] BERT: Total records found: 1

Also there is a message I have never seen in a syslog (and I dont know what it means and where it came from):

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[    4.394704] 0x000000000000-0x000002000000 : "BIOS"

This looks also very wrong:

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[    0.000021] total RAM covered: 63368M
[    0.000082]  gran_size: 64K 	chunk_size: 64K 	num_reg: 10  	lose cover RAM: 60920M
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[    0.000165] mtrr_cleanup: can not find optimal value
[    0.000166] please specify mtrr_gran_size/mtrr_chunk_size

Although Neddy correctly said that a reinstallation is usually unnecessary, I want to mention this as an option in this case. Because this setting is probably incorrect:

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CFLAGS="-march=alderlake -mabm -mno-kl -mno-pconfig -mno-sgx -mno-widekl -mshstk --param=l1-cache-line-size=64 --param=l1-cache-size=32 --param=l2-cache-size=24576 -O2 -pipe"

You dont have an AlderLake CPU (= 12. generation) but a MeteorLake. Have you tried to use a simple "native"? ->

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COMMON_FLAGS="-march=native -O2 -pipe"

Internal note:

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[    0.000000] Linux version 6.18.12-gentoo-dist (portage@localhost) (x86_64-pc-linux-gnu-gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1 20260214, GNU ld (Gentoo 2.46.0 p1) 2.46.0) #1 SMP PREEMPT_DYNAMIC Sun Mar  8 16:29:35 CET 2026
[    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-6.18.12-gentoo-dist root=UUID=475ca5c0-3a9f-4e22-852f-c6c7605c3ec6 ro

[    0.000000] SMBIOS 3.6.0 present.
[    0.000000] DMI: ASUSTeK COMPUTER INC. ROG Zephyrus G16 GU605MI_GU605MI/GU605MI, BIOS GU605MI.317 03/13/2024

[    0.134976] smpboot: CPU0: Intel(R) Core(TM) Ultra 7 155H (family: 0x6, model: 0xaa, stepping: 0x4)

[    0.151729] smp: Brought up 1 node, 22 CPUs
[    0.151729] smpboot: Total of 22 processors activated (131841.00 BogoMIPS)
[    0.155138] Memory: 32351692K/33131192K available (23787K kernel code, 5086K rwdata, 18708K rodata, 5344K init, 4768K bss, 743036K reserved, 0K cma-reserved)

[    0.653683] microcode: Current revision: 0x00000028
[    0.653758] microcode: Updated early from: 0x0000001c

[Borsch]

I should exaplain a bit more, I have not re-installed the OS, but I did rebuild all packages hoping for maybe an easy fix admittedly. When I did this, portage complained about -march=native in my make.conf, in order to continue with the rebuild it told me to

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emerge app-misc/resolve-march-native

run it and obtain my CPU info to use for the march setting. After this rebuilding my system was possible without any more errors, but there was no change in the XFCE issue. As far as I understand it was complaining about different core cache sizes as my CPU has 2 different types of cores and for some reason it got confused as a result.

Please ask away in regards to what you would like to know about, I will gladly provide some clarification in regards to everything I've done and any files or info if I can provide it.

[pietinger]

I am not a fan of resolve-march-native. In the past there was a problem with the different cache-sizes some Intel CPUs have. At that time I changed my setting also from native to raptorlake (I have). So, if you have a problem with "native" do a:

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COMMON_FLAGS="-march=meteorlake -O2 -pipe"

(the -march=meteorlake flag enables specific ISA extensions: AVX-IFMA, AVX-VNNI-INT8, AVX-NE-CONVERT, and CMPccXADD. It supports the new 3D performance hybrid architecture, which includes P-cores, E-cores, and low-power E-cores on the SoC tile.)

(and after that change maybe do re-emerge everything you have with "emerge -e @world")

[Borsch]

Noted, I will have a look at doing so tonight probably then, I will post any errors or complaints given by emerge in this thread.

Other than that, I am still completely lost regarding the XFCE issue, I am honestly considering changing to KDE given I've never had issues with it and I can either start using my DE normally or I guess I will have to do a full reinstall to fix it.

But preferably I would like to learn what happened to fix it in the future. I won't be rushing any of this as otherwise as far as I am concerned its all as per usual. Games work, internet all works, all apps work with 0 issues.

Kind regards,
Borsch

[pietinger]

Do you use our binary Gentoo kernel (gentoo-kernel-bin) or did you compile the package gentoo-kernel?

IF gentoo-kernel maybe try at first step to re-compile only the kernel (and the initramfs) ... and check with "dmesg" again after the reboot. I would like to know if there are again the messages about "gran_size:".

[Borsch]

I use the gentoo-sources kernel, so I compile it. I have a fair amount of cores so re-compiling my system overnight as long as there are no errors will be finished a bit after I wake up. But I will re-build the kernel with the flag change and I will post dmesg again.

Regarding initramfs is there any specific steps to be taken? I assume all is explained here.

https://wiki.gentoo.org/wiki/Initramfs/ ... _initramfs

In which case I will read through this momentarily and do as suggested. Although I will remark already, I never did this after re-compiling my system previously so maybe this is related?

Kind regards,
Borsch.

[NeddySeagoon]

Borsch,

If your -march were a problem your dmesg would have Illegal Instruction Exception errors but there are none.
Getting the scheduling and cache sizes right will help performance and battery life but its not the cause of your issue right now.
That is, it's suboptimal but not breaking your install.

-march is everywhere too, so its a full rebuild if it matters. You can also let your natural update cycle introduce the updated -march.
Both ways work.

Both your logs look OK. There are no errors at the end of dmesg and the Xorg.0.log finishes with the VT switch, which you did to regain control, so that's expected too.

Some WM keep their own log files. Is there an Xfrc4 log anywhere?

[Borsch]

I see,

Good to know that wasn't the issue before I started by full rebuild xD

Through updates it shall be then.

I cannot find any addtional logs related to XFCE or for its WM. [/quote]