SRU: https://lists.ubuntu.com/archives/kernel-
team/2022-February/128284.html (J/I/oem-5.14)
** Description changed:
+ [SRU Justification]
+
+ [Impact]
+
+ On some platforms, PS/2 keyboard cannot wake system up from s2idle.
+
+ [Fix]
+
+ Mainline commit cb1f65c1e142 ("PM: s2idle: ACPI: Fix wakeup interrupts
+ handling") picks up the missed wakeup interrupt.
+
+ [Test Case]
+
+ Use button press on PS/2 keyboard to wake suspended system.
+
+ [Where problems could occur]
+
+ It may still discard irqs under some very rare corner cases that are not
+ yet identified, but the implementation can be extended easily when
+ necessary.
+
+ [Other Info]
+
+ This affects 5.4+ kernels and has been proposed for linux-stable. While
+ this is merged in v5.17-rc4, linux-unstable will have this soon so
+ nomination is skipped.
+
+ ========== original bug report ==========
+
With bug 1957026 and bug 1960434, suspend/resume using rtc and power
button work as expected, but PS/2 or USB keyboard still do not work well
as an wakeup source. This focus on fixes for PS/2.
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https://bugs.launchpad.net/bugs/1961739
Title:
PS/2 Keyboard wakeup from s2idle not functioning on AMD Yellow Carp
platform
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