** Description changed: [Impact] + The deepest package cstate is PC9 and fails to enter low power mode during s2i on Tiger Lake platform. [Fix] + Intel provides a fix for TGL platform + https://patchwork.kernel.org/project/platform-driver-x86/patch/20210305190608.1834164-1-david.e....@linux.intel.com/ [Test] + Verified on Dell TGL platforms and it works as expected. [Where problem could occur] + It actually adds a quirk for tgl platform to ignore Latency Tolerance Reporting (LTR) in pmc_core driver, that makes GBE on TGL won't block the system to enter deeper PC state. It should be safe for all TGL platforms.
** Description changed: [Impact] The deepest package cstate is PC9 and fails to enter low power mode during s2i on Tiger Lake platform. [Fix] Intel provides a fix for TGL platform https://patchwork.kernel.org/project/platform-driver-x86/patch/20210305190608.1834164-1-david.e....@linux.intel.com/ [Test] Verified on Dell TGL platforms and it works as expected. [Where problem could occur] It actually adds a quirk for tgl platform to ignore Latency Tolerance Reporting (LTR) in pmc_core driver, that makes GBE on TGL won't block the system to enter deeper PC state. It should be safe for all TGL platforms. + + [Misc] + Currently, this commit is not accepted and a v2 is expected. So, submit this commit to oem kernel only and will revert it and submit final version of this patch to ubuntu kernels later. ** Summary changed: - Intel e1000e blocks the system to enter PC10 + Intel e1000e blocks the system to enter PC10 on TGL platform -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1919116 Title: Intel e1000e blocks the system to enter PC10 on TGL platform To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1919116/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
