This bug is awaiting verification that the linux-oem-6.11/6.11.0-1009.9 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-noble-linux-oem-6.11' to 'verification-done- noble-linux-oem-6.11'. If the problem still exists, change the tag 'verification-needed-noble-linux-oem-6.11' to 'verification-failed- noble-linux-oem-6.11'.
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-noble-linux-oem-6.11-v2 verification-needed-noble-linux-oem-6.11 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-6.11 in Ubuntu. https://bugs.launchpad.net/bugs/2088964 Title: Disable C1 auto-demotion during suspend for MTL/ARL/LNL platforms Status in HWE Next: New Status in linux-oem-6.11 package in Ubuntu: Invalid Status in linux-oem-6.11 source package in Noble: Fix Committed Bug description: [Impact] On some platforms, aggressive C1 auto-demotion may lead to failure to enter the deepest C-state during suspend-to-idle, causing high power consumption. To prevent this, disable C1 auto-demotion during suspend and re-enable on resume. [Fix] Below 2 commits in linux-next fix the issue 7a797cc9f809 platform/x86/intel/pmc: Disable C1 auto-demotion during suspend 9fe43c8020a6 platform/x86/intel/pmc: Refactor platform resume functions to use cnl_resume() [Test] Connect the power meter on the machine(MTL/ARL/LNL) and run s2idle tests multiple times, it should consume ~0.5w during s2idle. [Where problems could occur] It's hard to tell what could cause changes to the CPU flags. So, only submit this to OEM kernel. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/2088964/+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
