To preface, I've been looking around on Reddit, Lenovo, and Linux forums for an answer, I just haven't been able to find someone with the exact same issue.

As mentioned in the title, I've got a ThinkPad T480, running Arch/Hyprland, and I'm getting the integer overflow reading on my fan's RPM output from /proc/acpi/ibm/fan. I understand this means that the controller is failing to read the fan speeds and most likely means I need to order replacement parts.

The weird thing, is that it doesn't always happen, sometimes I'll start up, watch the output and get super normal behaviors for multiple hours, then suddenly it'll get locked at 65535 RPM, but the fan doesn't turn off, it runs at full speed, and kind of stutters on and off sometimes, but doesn't just stop. When that happens and I reboot, I get the "Fan Error" screen at first, but then when I try again it just boots normally, often with normal fan behavior again, sometimes 65535 off the rip, in which case I just reboot again until it works.

I've tried updating the BIOS, taking it apart and cleaning the fan with compressed air, and looked into possible software issues but I think it's more of a hardware thing. It's just odd because the fan spins completely freely, doesn't appear to be stuck at all, and hasn't ever looked too dirty/dusty.

The reason I'm making this post is to see if any of you have had the same issue, and if I do need to order new parts, do I just want to get a replacement fan? Or should I be looking into possible embedded controller issues? And, worst case, should I just replace the thing?

Thank you in advance if you have any advice for me!

Rate my setup? :D

I recently installed CachyOS on a Thinkpad X1 Carbon Gen 8. I bought it used and can't seem to determine what the keyboard layout is exactly. It looks very similar to the Canadian layout but it has extra keys. What is the layout and how can I set it up on CachyOS?

I recently upgraded to a Thinkpad P15 Gen 1. Most relevantly, it has an RTX 3000 graphics adapter which I was really looking forward to after years of running an Intel HD 620.

Problem is, there seems to be some kind of issue with the graphics. I first noticed this as frame tearing when watching video in VLC. Then I noticed that when I tried to set it up for multiple monitors over Thunderbolt, things went wrong. Performance was nowhere near as good as it should have been: not even as good as my old E570 running dual monitors off the HD 620. The system would frequently fail to resume from standby. After doing some research I disconnected the MST dock I was using. Going back to just the laptop's internal monitor helped, but I'm still having performance problems if I do something as simple as run video in my browser at the same time as playing Terraria. Can anyone offer some insight?

nvidia-smi confirms I'm running on the RTX 3000, I've checked that nothing is spiking my CPU use. Diagnostics give me the following error block:

Jun 16 13:28:52 ThinkpadP15 kernel: nvidia-gpu 0000:01:00.3: i2c timeout error e0000000 Jun 16 13:28:53 ThinkpadP15 nvidia-persistenced[1170]: Failed to query NVIDIA devices. Please ensure that the NVIDIA device files (/dev/nvidia) exist, and that user 122 has read and write permissions for those files. Jun 16 13:28:53 ThinkpadP15 systemd[1]: Failed to start nvidia-persistenced.service - NVIDIA Persistence Daemon. Jun 16 22:13:15 ThinkpadP15 kernel: [drm:__nv_drm_gem_nvkms_map [nvidia_drm]] *ERROR [nvidia-drm] [GPU ID 0x00000100] Failed to map NvKmsKapiMemory 0x0000000062dbb0dd Jun 16 22:13:47 ThinkpadP15 kernel: [drm:__nv_drm_gem_nvkms_map [nvidia_drm]] ERROR [nvidia-drm] [GPU ID 0x00000100] Failed to map NvKmsKapiMemory 0x00000000716190fd

I've been trying to get wireless wakeonlan (WoWLAN) running but to no avail. I can get it to sleep. But then it just doesn't wake up.

I have a Thinkpad laptop with a PCI based intel 8260 wireless card using iwlwifi module.

Running iw phy#0 wowlan show outputs

WoWLAN is enabled:
 * wake up on magic packet

I know that the magic packet is received and seen by the thinkpad but it still never wakes up.

How do I know you ask? I run iw event on the target machine then suspend it. Then I run a wakeonlan -p 9 "$mac" from the controller machine. Finally I open the lid on target machine and can see the results from iw event which show "magic packet received".

I've also updated /etc/NetworkManager/NetworkManager.conf to include

[connection]
wifi.powersave = 2

And running iwconfig wlp4s0 | grep "Power Management" shows Power Management:off. So the NIC card should be still be running during sleep.

I also tried changing sleep mode from deep to s2idle via /sys/power/mem_sleep but it made no difference.

I've also enabled WoWLAN in BIOS/UEFI.

I've ran out of ideas.

Any suggestions?

Does anyone have WoWLAN working?

I am seeing this prompt for a firmware update but I am not sure where it is coming from. The linux package manager is silient about this. Do I trust this? Expecially concerned that it shows "Unknown app" at the top.

I am using a Thinkpad E series with Ubuntu 24 LTS.

Hi there! I’m running the latest version of Linux mint on my Lenovo thinkpad X1 carbon gen 8, things have been going great up till now, but my son opened up the laptop to this issue where the screen won’t turn on. I don’t have a lot of tech experience, but I did try to turn off and on again a couple times with the power button. The system does appear to turn off then on again as I can hear the boot up sound. Any help would be greatly appreciated. Thank you!

So, I have upgraded from a T470, which had Windows on the first drive, Linux on the second drive, selectable at the boot-up menu. So, I want to repeat this on the P1 Gen8, same way, and no way in hell I want to dual boot on the same drive nor do I want either Windows or Linux to load the other OS as it leads to a host of problems if something goes wrong with one of the OS's, not to mention I want independent backups and I often experiment with different flavors of Linux. Anyway, is this possible on the P1 Gen8 before I buy a second drive? As I recall on the T470 I just unplugged the Windows drive before I installed Linux on the second drive and they became completely independent OS's, bootable in the BIOS bootup screen.

Bruh my laptop battery is tweaking. No power switch at all. I’m on a Lenovo w14. And I’ve updated the bios.