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#1 2025-04-08 12:44:58
- 0505Oryon
- Member
- Registered: 2012-02-05
- Posts: 25
Powerdevil failed to find connector
I have a new laptop, installed a clean Arch with KDE and upon boot I have a strange error in my journalctl:
Apr 08 14:39:24 firefly kernel: amd-pmf AMDI0102:00: ta invoke cmd init failed err: 6001e
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Failed to find connector name for /dev/i2c-16, set_connector_for_businfo_using_edid at line 1236 in file i2c_bus_core.c.
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: I2C_Bus_Info at: 0x5740c6fc0a80
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Flags: I2C_BUS_EXISTS | I2C_BUS_ACCESSIBLE | I2C_BUS_PROBED | I2C_BUS_X50_EDID | I2C_BUS_SYSFS_KNOWN_RELIABLE
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Bus /dev/i2c-16 found: true
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Bus /dev/i2c-16 probed: true
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: errno for open: OK(0): success
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: drm_connector_found_by: DRM_CONNECTOR_NOT_CHECKED (0)
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: last_checked_asleep: false
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Display connectors reported by /sys:
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Connector: card1-HDMI-A-1
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: i2c_busno: 8
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: connector_id: 101
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: name: (null)
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: enabled: disabled
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: status: disconnected
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: edid: None
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Connector: card1-DP-1
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: i2c_busno: 17
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: connector_id: 107
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: name: (null)
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: enabled: disabled
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: status: disconnected
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: edid: None
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Connector: card1-DP-2
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: i2c_busno: 18
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: connector_id: 113
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: name: (null)
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: enabled: disabled
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: status: disconnected
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: edid: None
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Connector: card1-DP-3
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: i2c_busno: 19
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: connector_id: 118
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: name: (null)
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: enabled: disabled
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: status: disconnected
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: edid: None
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Connector: card1-DP-4
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: i2c_busno: 20
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: connector_id: 123
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: name: (null)
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: enabled: disabled
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: status: disconnected
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: edid: None
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Connector: card1-DP-5
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: i2c_busno: 21
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: connector_id: 128
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: name: (null)
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: enabled: disabled
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: status: disconnected
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: edid: None
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Connector: card1-DP-6
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: i2c_busno: 22
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: connector_id: 133
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: name: (null)
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: enabled: disabled
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: status: disconnected
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: edid: None
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Connector: card1-DP-7
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: i2c_busno: 23
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: connector_id: 138
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: name: (null)
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: enabled: disabled
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: status: disconnected
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: edid: None
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Connector: card1-eDP-1
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: i2c_busno: 7
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: connector_id: 93
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: name: (null)
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: enabled: enabled
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: status: connected
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: edid:
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +0 +4 +8 +c 0 4 8 c
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +0000 00 ff ff ff ff ff ff 00 06 af a8 6d 00 00 00 00 ...........m....
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +0010 00 20 01 04 a5 1e 13 78 03 e0 35 ad 51 44 b2 27 . .....x..5.QD.'
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +0020 0c 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01 .PT.............
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +0030 01 01 01 01 01 01 3e d8 00 a0 a0 40 60 60 30 20 ......>....@``0
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +0040 35 00 2d bc 10 00 00 18 20 6c 00 a0 a0 40 60 60 5.-..... l...@``
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +0050 30 20 35 00 2d bc 10 00 00 18 00 00 00 00 00 00 0 5.-...........
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +0060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02 ................
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +0070 00 0c 24 ff 13 3c fa 1e 10 46 fa 00 00 20 01 7f ..$..<...F... ..
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +0080 70 20 79 02 00 22 00 14 6b 72 08 84 ff 09 9f 00 p y.."..kr......
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +0090 2f 80 1f 00 3f 06 5f 00 02 00 04 00 25 01 09 6b /...?._.....%..k
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +00a0 72 08 6b 72 08 30 78 80 81 00 1a 72 1a 00 00 03 r.kr.0x....r....
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +00b0 01 30 78 00 00 6a 49 6a 49 78 00 00 00 00 e6 06 .0x..jIjIx......
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +00c0 01 01 6a 6a 26 00 00 00 00 00 00 00 00 00 00 00 ..jj&...........
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +00d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +00e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: +00f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ed 90 ................
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: Connector: card1-Writeback-1
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: i2c_busno: -1
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: connector_id: 147
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: name: (null)
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: enabled: disabled
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: status: unknown
Apr 08 14:39:36 firefly org_kde_powerdevil[2017]: edid: NoneAs far as I was able to find out whats happening the first line is independent of the rest and is related to some amd kernel level thing which is currently being worked on and should not be problematic.
However as for the other I was not really able to find anything besides I should check my display settings, which to me they seem fine (resolution, refresh rate all seems normal)
Any idea what might cause this and what can I do to fix it?
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#2 2025-04-12 07:59:25
- Softwehr
- Member
- Registered: 2025-04-12
- Posts: 6
Re: Powerdevil failed to find connector
Same issue here but with /dev/i2c-12, happened after my last update. dont know if its the new kernel and drivers or plasma.
A user at the manajaro forum also has a similar error: Forum Post
the problem occurs on my thinkpad x13 gen 4 with amdgpu. on my nvidia desktop everything is smooth sailing.
i kinda suspect the thunderbolt port, because mouses connected to a thunderbolt display also dont work anymore and other quirks.
I dont know if it could also be connected to this, but my wifi takes very long to connect and turn off and on...
Last edited by Softwehr (2025-04-12 08:01:33)
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#3 2025-04-14 10:58:04
- Softwehr
- Member
- Registered: 2025-04-12
- Posts: 6
Re: Powerdevil failed to find connector
Ok i solved this and the wifi issue with switching to the linux-lts kernel.
Just install the linux-lts and linux-lts-headers(this also triggers mkinitcpio, and you need it for possible dkms packages)
Just remember to add a boot entry for it.
Here is what i did, maybe it can help someone who doesnt have much experience:
$ sudo pacman -S linux-lts linux-lts-headersIf your using systemdboot go to your <boot partition>/loader/entries
in my case:
$ cd /boot/loader/entries/and copy an existing working entry and name it linux-lts.conf or somehting.
in my case:
$ cp 2025-04-11_21-12-32_linux.conf linux-lts.confand then edit linux-lts.conf with an text editor of your choice, but with sudo.
Edit the first three lines to something like this:
title Arch Linux (linux-lts)
linux /vmlinuz-linux-lts
initrd /initramfs-linux-lts.imgdont touch the options line.
then reboot and choose the linux-lts entry, and your system should work as intended again
Last edited by Softwehr (2025-04-14 10:58:55)
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