[SOLVED] Installed amd-ucode on intel cpu, no monitor signal

seth · 2025-05-02 16:37:23

http://0x0.st/84aK.txt boots the LTS kernel, I assume the outputs don't show up there as well?
They do however on fedora, what kernel version are you running there?
Ideally also post a journal from fedora…

KayZoka · 2025-05-02 20:27:51

seth wrote:

I assume the outputs don't show up there as well?

Yeah, they don't

They do however on fedora, what kernel version are you running there?

kayzoka@fedora:~$ uname -srm
Linux 6.11.8-300.fc41.x86_64 x86_64

I didn't upddate fedora since i switched to arch (because.. i don't use it anymore.) and now kinda don't want to because it might break as well

Ideally also post a journal from fedora…

http://0x0.st/8491.txt

seth · 2025-05-02 20:50:08

https://aur.archlinux.org/packages/linux-lts66 ?

KayZoka · 2025-05-03 14:06:51

4 hours of compiling later -- no outputs
http://0x0.st/84tm.txt

seth · 2025-05-03 14:36:24

Sorry, forgot to mention https://wiki.archlinux.org/title/Makepk … ompilation
But you're booting the 6.6 kernel

grrrrr…

So fedora has "amdgpu.vm_fragment_size=9" but I don't think that's relevant (feel free to try) - the main difference would be that fedora has the amdgpu module clearly not in the initramfs => remove the "kms" HOOK, make sure "amdgpu" isn't in the MODULES array (/etc/mkinitcpio.conf) regenerate the initramfs and tell your GPU to behave itself or seth will… well… I guess stomp my foot. But really hard!

KayZoka · 2025-05-03 17:08:10

seth wrote:

feel free to try

Yeah, no difference

remove the "kms" HOOK, make sure "amdgpu" isn't in the MODULES array (/etc/mkinitcpio.conf)

MODULES is empty, removed kms, ran "mkinitcpio -P"

and tell your GPU to behave itself or seth will… well… I guess stomp my foot. But really hard!

Told it, but it didn't listen. Guess we gotta start stomping
http://0x0.st/84wR.txt

P.s. one thing i noticed is that before signal stops, after showing harware errors as in #10, there's this text below, which also appears with nomodeset, at least something changed:
https://i.postimg.cc/qqrT1Pvn/IMG-20250503-200304.jpg

seth · 2025-05-03 20:25:48

https://wiki.archlinux.org/title/Machin … _exception - but also see the fedora log.

https://bbs.archlinux.org/viewtopic.php … 6#p2238766 - the install iso btw. boots fine w/o nomodeset?

May 02 23:08:16 fedora kernel: [drm] Found VCN firmware Version ENC: 1.32 DEC: 4 VEP: 0 Revision: 0
May 03 19:40:36 archftw kernel: [drm] Found VCN firmware Version ENC: 1.33 DEC: 4 VEP: 0 Revision: 6

What if you downgrade the firmware package?
Edit: https://archive.archlinux.org/packages/ … -firmware/

Last edited by seth (2025-05-03 20:26:05)

KayZoka · 2025-05-04 09:31:44

seth wrote:

https://wiki.archlinux.org/title/Machin … _exception - but also see the fedora log.

[kayzoka@archftw ~]$ sudo ras-mc-ctl --error-count
ras-mc-ctl: Error: No DIMMs found in /sys or new sysfs EDAC interface not found.
[kayzoka@archftw ~]$ sudo ras-mc-ctl --summary
No Memory errors.

No PCIe AER errors.

No ARM processor errors.

No Extlog errors.

No devlink errors.
No MCE errors.

The same for fedora

https://bbs.archlinux.org/viewtopic.php … 6#p2238766 - the install iso btw. boots fine w/o nomodeset?

Sorry, I don't understand the question. Arch install iso loads as is, no need to edit anything

May 02 23:08:16 fedora kernel: [drm] Found VCN firmware Version ENC: 1.32 DEC: 4 VEP: 0 Revision: 0
May 03 19:40:36 archftw kernel: [drm] Found VCN firmware Version ENC: 1.33 DEC: 4 VEP: 0 Revision: 6
What if you downgrade the firmware package?
Edit: https://archive.archlinux.org/packages/ … -firmware/

Picked my best guess at what was the last time i updated fedora and downgraded to linux-firmware-20241017.22a6c7dc(looking at journalctl, looks like i guessed correct), no signal
http://0x0.st/84lY.txt

seth · 2025-05-04 12:07:04

Arch install iso loads as is, no need to edit anything

I meant whether the install iso boots w/ the outputs available (and no requirement for "nomodeset")

Fedora lacks

May 04 12:23:19 archftw kernel: amdgpu 0000:03:00.0: amdgpu: AGP: 267894784M 0x0000008400000000 - 0x0000FFFFFFFFFFFF

but that's hardly it…

modprobe -c | grep amdgpu | grep -v alias

KayZoka · 2025-05-04 16:21:15

find /sys/devices -name "edid"

Shows 3 DPs and 1 HDMI on arch live iso

On arch:

[kayzoka@archftw ~]$ modprobe -c | grep amdgpu | grep -v alias
options amdgpu si_support=1
options amdgpu cik_support=1
options amdgpu dc=0
options amdgpu ppfeaturemask=0xfffd3fff

On fedora:

kayzoka@fedora:~$ modprobe -c | grep amdgpu | grep -v alias
options amdgpu cik_support=1
options amdgpu vm_fragment_size=9

On live iso outputs nothing

Forget everything i said above

turns out, i DIDN'T delete /etc/modprobe.d/amdgpu.conf and radeon.conf and either dc or ppfeaturemask options broke the whole thing! I made sure i actually deleted them this time and the system works... I feel somewhat stupid, it was asking to remove write-protected file, i typed yes, and missed that it was saying "permission denied". This is not the first time i do that

Thank you for your patience btw

Last edited by KayZoka (2025-05-04 16:24:15)

seth · 2025-05-05 07:55:34

at least we all get to keep our sanity

Arch Linux

#26 2025-05-02 16:37:23

Re: [SOLVED] Installed amd-ucode on intel cpu, no monitor signal

#27 2025-05-02 20:27:51

Re: [SOLVED] Installed amd-ucode on intel cpu, no monitor signal

#28 2025-05-02 20:50:08

Re: [SOLVED] Installed amd-ucode on intel cpu, no monitor signal

#29 2025-05-03 14:06:51

Re: [SOLVED] Installed amd-ucode on intel cpu, no monitor signal

#30 2025-05-03 14:36:24

Re: [SOLVED] Installed amd-ucode on intel cpu, no monitor signal

#31 2025-05-03 17:08:10

Re: [SOLVED] Installed amd-ucode on intel cpu, no monitor signal

#32 2025-05-03 20:25:48

Re: [SOLVED] Installed amd-ucode on intel cpu, no monitor signal

#33 2025-05-04 09:31:44

Re: [SOLVED] Installed amd-ucode on intel cpu, no monitor signal

#34 2025-05-04 12:07:04

Re: [SOLVED] Installed amd-ucode on intel cpu, no monitor signal

#35 2025-05-04 16:21:15

Re: [SOLVED] Installed amd-ucode on intel cpu, no monitor signal

Forget everything i said above

#36 2025-05-05 07:55:34

Re: [SOLVED] Installed amd-ucode on intel cpu, no monitor signal

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