Richard Weinberger <richard@xxxxxx> writes: > ----- Ursprüngliche Mail ----- >> Von: "kvalo" <kvalo@xxxxxxxxxx> >> Richard Weinberger <richard@xxxxxx> writes: >> >>> On my shiny new Lenovo T14s resume from hibernation always fails, and crashes >>> the kernel. >>> Looks like ath11k_pci is unable to resume the device. >>> This happens also with Linus' tree as of today. >> >> Unfortunately a known issue in ath11k but no fix available: >> >> https://bugzilla.kernel.org/show_bug.cgi?id=214649 > > So the device is unable to operate after entering ACPI S4. > > Is this a bug in the Linux ath11k driver itself or more likely a > firmware chip issue? I didn't verify whether resume works on Windows > though. IIRC the issue is that ath11k expects the firmware to be running during suspend. And this was because shutting down the firmware for suspend caused problems in the MHI subsystem during resume. To fix this I suspect we need changes both in ath11k and in the MHI subsystem, so not easy. -- https://patchwork.kernel.org/project/linux-wireless/list/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
