Power limits from this platform: abuser@labuser-XPS-13-7390-2-in-1:/$ grep -r . sys/bus/pci/devices/0000\:00\:04.0/power_limits/* sys/bus/pci/devices/0000:00:04.0/power_limits/power_limit_0_max_uw:9000000 sys/bus/pci/devices/0000:00:04.0/power_limits/power_limit_0_min_uw:2500000 sys/bus/pci/devices/0000:00:04.0/power_limits/power_limit_0_step_uw:100000 sys/bus/pci/devices/0000:00:04.0/power_limits/power_limit_0_tmax_us:28000000 sys/bus/pci/devices/0000:00:04.0/power_limits/power_limit_0_tmin_us:24000000 sys/bus/pci/devices/0000:00:04.0/power_limits/power_limit_1_max_uw:15000000 sys/bus/pci/devices/0000:00:04.0/power_limits/power_limit_1_min_uw:6000000 sys/bus/pci/devices/0000:00:04.0/power_limits/power_limit_1_step_uw:100000 sys/bus/pci/devices/0000:00:04.0/power_limits/power_limit_1_tmax_us:28000000 sys/bus/pci/devices/0000:00:04.0/power_limits/power_limit_1_tmin_us:24000000
You can see 9000000 as max power limit 0.
Power limits from this platform: labuser- XPS-13- 7390-2- in-1:/$ grep -r . sys/bus/ pci/devices/ 0000\:00\ :04.0/power_ limits/ * pci/devices/ 0000:00: 04.0/power_ limits/ power_limit_ 0_max_uw: 9000000 pci/devices/ 0000:00: 04.0/power_ limits/ power_limit_ 0_min_uw: 2500000 pci/devices/ 0000:00: 04.0/power_ limits/ power_limit_ 0_step_ uw:100000 pci/devices/ 0000:00: 04.0/power_ limits/ power_limit_ 0_tmax_ us:28000000 pci/devices/ 0000:00: 04.0/power_ limits/ power_limit_ 0_tmin_ us:24000000 pci/devices/ 0000:00: 04.0/power_ limits/ power_limit_ 1_max_uw: 15000000 pci/devices/ 0000:00: 04.0/power_ limits/ power_limit_ 1_min_uw: 6000000 pci/devices/ 0000:00: 04.0/power_ limits/ power_limit_ 1_step_ uw:100000 pci/devices/ 0000:00: 04.0/power_ limits/ power_limit_ 1_tmax_ us:28000000 pci/devices/ 0000:00: 04.0/power_ limits/ power_limit_ 1_tmin_ us:24000000
abuser@
sys/bus/
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sys/bus/
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You can see 9000000 as max power limit 0.