This bug is awaiting verification that the linux/6.2.0-34.34 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-lunar-linux' to 'verification-done-lunar-linux'. If the problem still exists, change the tag 'verification-needed-lunar- linux' to 'verification-failed-lunar-linux'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-lunar-linux-v2 verification-needed-lunar-linux -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-6.1 in Ubuntu. https://bugs.launchpad.net/bugs/2032767 Title: Fix ACPI TAD on some Intel based systems Status in HWE Next: New Status in linux package in Ubuntu: Confirmed Status in linux-oem-6.1 package in Ubuntu: Invalid Status in linux-oem-6.5 package in Ubuntu: Invalid Status in linux source package in Jammy: Won't Fix Status in linux-oem-6.1 source package in Jammy: Fix Committed Status in linux-oem-6.5 source package in Jammy: Fix Released Status in linux source package in Lunar: Fix Committed Status in linux-oem-6.1 source package in Lunar: Invalid Status in linux-oem-6.5 source package in Lunar: Invalid Status in linux source package in Mantic: Confirmed Status in linux-oem-6.1 source package in Mantic: Invalid Status in linux-oem-6.5 source package in Mantic: Invalid Bug description: [Impact] ACPI TAD doesn't really work on several systems. When accessing TAD interface via sysfs, like setting/getting realtime, it also causes errors: [ 478.255453] ACPI Error: No handler for Region [RTCM] (00000000a8d2dd39) [SystemCMOS] (20230331/evregion-130) [ 478.255458] ACPI Error: Region SystemCMOS (ID=5) has no handler (20230331/exfldio-261) [ 478.255461] Initialized Local Variables for Method [_GRT]: [ 478.255461] Local1: 00000000f182542c <Obj> Integer 0000000000000000 [ 478.255464] No Arguments are initialized for method [_GRT] [ 478.255465] ACPI Error: Aborting method \_SB.AWAC._GRT due to previous error (AE_NOT_EXIST) (20230331/psparse-529) [Fix] Let the driver to install a handler for its SystemCMOS region. The spec on whether certain devices can use SystemCMOS or not is quite vague, so follow the de facto implementation, Windows :) [Test] Once the patch is applied, setting and getting realtime through TAD sysfs work, and there's no more error in dmesg. [Where problems could occur] Now ACPI TAD driver also depends on ACPI RTC driver, so the memory usage will go up slightly. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2032767/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
