Bug 2455132

Summary: iio-sensor-proxy.service / Tablet mode not working after upgrading linux-firmware 20260309
Product: [Fedora] Fedora Reporter: helpmepls477
Component: kernelAssignee: Justin M. Forbes <jforbes>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 43CC: acaringi, adscvr, airlied, dwmw2, hans, hpa, jforbes, jwboyer, kernel-maint, linville, masami256, mchehab, nickolasjcarr, pbrobinson, ptalbert, steved, suraj.ghimire7
Target Milestone: ---Keywords: HardwareEnablement, Regression
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Hardware: x86_64   
OS: Linux   
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Description helpmepls477 2026-04-04 21:28:04 UTC 
Auto rotate and the iio sensor used to work when I installed fedora, but broke with an update. iio-sensor-proxy.service does not run properly.

My laptop is
HP Omnibook Ultra Flip 14 with the Lunar Lake Ultra 9 288V processor.

This issue is similar to bug 2448048 experinced on a lenovo Lunar Lake laptop.
https://bugzilla.redhat.com/show_bug.cgi?id=2448048

Downgrading the firmware to version 20260221 like the user mentioned in that thread, fixes the issue. It is specifically the Intel Firmware that had a regression.
A fix was made for that laptop, but the issue presists for me.I am unsure what differences there are, as it should be the same gyroscope sensor present in all lunar lake chips.



Reproducible: Always

Steps to Reproduce:
1.Use tablet mode on a device running linux-firmware-20260221
2. Update system to linux-firmware-20260309
3. Observe that iio-sensor-proxy.service no longer runs and tablet mode doesn't work
Actual Results:
iio-sensor-proxy.service does not run

Expected Results:
iio-sensor-proxy.service runs and tablet mode and auto rotate works as intended when the screen of the laptop is flipped
Comment 1 Peter Robinson 2026-04-06 09:02:53 UTC 
The fix for the Lenovo was a kernel fix to deal with different firmware versions. This likely needs a similar fix.
Comment 2 helpmepls477 2026-06-19 06:33:50 UTC 
The maintainer for the firmware over on gitlab didn't sound very optimistic: https://gitlab.com/kernel-firmware/linux-firmware/-/merge_requests/746
HP is hard to work with. However I would be happy with a hack or partial solution, even if the support isn't implemented properly.