Hello, I have problem with my T480 after librebooting. I don’t see any CPU sensors in xfce4-sensors and in sensors. Also FAN under CPU load does not turn on. I force-loaded thinkpad-acpi because it was not loading automatically as in here. Now I can see FAN sensor but not CPU one. FAN turns on but it doesn’t take CPU temperatures into consideration obviously. I have other sensor called temp1 or something like that and FAN turns on when it gets higher than 55C but it’s not CPU as I compared it with previous CPU temperatures before librebooting. CPU temperature even for specific cores shows up in debian live OS so it’s Qubes/Xen related issue. Comparing to other machine with QubesOS installed on Lenovo BIOS - mine doesn’t have xen-acpi-processor module loaded in lsmod - I think that can be an issue but I couldn’t force load it by methods described in the link above and in methods that I found in the internet like adding .conf file containing module name in /etc/modules-load.d/. Command: sudo modprobe xen-acpi-processor returns that there is no such device like in the link above with thinkpad_acpi. Also tried with xen_acpi_processor but didn’t help. sudo sensors-detect --auto in dom0 didn’t find any new sensors. Looking forward for some help.
Bumping, please help
Libreboot contact:
I made a thread on QubesOS forum because I couldn’t get any help from Libreboot IRC or by creating issue on their repo. And CPU sensors are visible on debian live image for example so it’s Qubes/Xen issue probably and it really might be caused by not loading xen-acpi-processor but I don’t know how to fix that. Maybe Libreboot for T480 lacks some CPU feature that xen modules depend on… Anyway, it’s very fresh topic. But for sure people on IRC aren’t helpful, they’re just ghosting there.
I had similar issue on my MSI board with dasharo/heads. The CPU temperature sensor did not show up, although the SSD sensor did.
The Fan speed control was okay, so I did not bother myself and did not investigate this issue further. Maybe indeed xen related…
Would you be willing to use different boot firmware for troubleshooting purposes?
I don’t think that is necessary to change boot firmware on this machine as I have machine with similar specs which I used to compare things for example xen-acpi-processor module not present. But I have an option to use different boot firmware. From my research, xen-acpi-processor can give No such device error if I have CPU P-states not set to legacy in Xen kernel but I don’t have any GUI like in this pdf above.
Hey there!
@preeky72
What else works/ doesn’t? Is your headphone jack functioning?
I’ve librebooted mine last week and am waiting for the final parts to arrive. currently running NixOS on it in the meantime to check what’s working and not.
But I could surely do a test install of 4.2.3 a few days earlier to rule out stuff together with you.
This thread might also benefit from having a short rundown of what’s working. https://forum.qubes-os.org/t/lenovo-thinkpad-t480/3290/60
@FranklyFlawless
I think the question is “How well does QubesOS support T480/libreboot?”, so the use of different firmware for this particular issue seems to me as not being an optimal solution
Feel free to handle the issues then.