Add more message when the low power idle job failed

1 files changed, 34 insertions, 10 deletions

diff --git a/units/power-management/jobs.pxu b/units/power-management/jobs.pxu
index 37aef99..9dc6851 100644
--- a/units/power-management/jobs.pxu
+++ b/units/power-management/jobs.pxu
@@ -345,25 +345,34 @@ requires:
 command:
 cpu_lpi_file=$(cpuinfo_resource.py | grep cpu_lpi_file | awk '{ print $2 }')
 if [ "$cpu_lpi_file" == "low_power_idle_cpu_residency_us" ]; then
- echo "check /sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us"
+ before=$(cat /sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us)
 xset dpms force off
 sleep 20
 xset dpms force on
- residency=$(cat /sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us)
+ after=$(cat /sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us)
+ residency=$((after-before))
+ echo "/sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us after/before screen off is $residency"
 else
- echo "check /sys/kernel/debug/pmc_core/package_cstate_show"
+ echo "The system doesn't have hardware-based residency counter."
+ echo "please check https://www.uefi.org/sites/default/files/resources/Intel_ACPI_Low_Power_S0_Idle.pdf"
 before=$(cat < /sys/kernel/debug/pmc_core/package_cstate_show | grep C10 | awk '{ print $4 }')
 xset dpms force off
 sleep 20
 xset dpms force on
 after=$(cat < /sys/kernel/debug/pmc_core/package_cstate_show | grep C10 | awk '{ print $4 }')
 residency=$((after-before))
+ echo "/sys/kernel/debug/pmc_core/package_cstate_show after/before screen off is $residency"
+ fi
+ if [ $residency -eq 0 ]; then
+ echo "The cpu can't enter low power idle when screen off."
+ echo "please refer to https://www.kernel.org/doc/html/latest/firmware-guide/acpi/lpit.html."
+ exit 1
 fi
- [ $residency -gt 0 ] || exit 1
 user: root
 estimated_duration: 25
 
 id: power-management/system-low-power-idle
+after: suspend/suspend_advanced_auto
 category_id: com.canonical.plainbox::power-management
 _summary: System low power idle residency check
 _description:
@@ -379,16 +388,31 @@ command:
 dmesg | grep ACPI | grep supports | sed 's/\[.*ACPI/ACPI/'
 echo "Content of /etc/default/grub:"
 cat /etc/default/grub
- rtcwake --mode freeze -s 10
 if [ "$sys_lpi_file" == "low_power_idle_system_residency_us" ]; then
- echo "check /sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us"
- residency=$(cat /sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us)
+ before=$(cat /sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us)
+ rtcwake --mode freeze -s 10
+ after=$(cat /sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us)
+ residency=$((after-before))
+ echo "/sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us after/before suspend is $residency"
 else
- echo "check /sys/kernel/debug/pmc_core/slp_s0_residency_usec"
- residency=$(cat /sys/kernel/debug/pmc_core/slp_s0_residency_usec)
+ echo "The system doesn't have hardware-based residency counter."
+ echo "please check https://www.uefi.org/sites/default/files/resources/Intel_ACPI_Low_Power_S0_Idle.pdf"
+ before=$(cat /sys/kernel/debug/pmc_core/slp_s0_residency_usec)
+ rtcwake --mode freeze -s 10
+ after=$(cat /sys/kernel/debug/pmc_core/slp_s0_residency_usec)
+ residency=$((after-before))
+ echo "/sys/kernel/debug/pmc_core/slp_s0_residency_usec after/before suspend is $residency"
 fi
 # shellcheck disable=SC2086
- [ $residency -gt 0 ] || exit 1
+ if [ $residency -eq 0 ]; then
+ echo "The system can't enter s0 when suspended."
+ echo "please refer to https://www.kernel.org/doc/html/latest/firmware-guide/acpi/lpit.html."
+ if [ -f /sys/kernel/debug/suspend_stats ]; then
+ echo "cat /sys/kernel/debug/suspend_stats"
+ cat /sys/kernel/debug/suspend_stats
+ fi
+ exit 1
+ fi
 user: root
 estimated_duration: 15