Hi Pavel, On 4/26/19 2:35 PM, Pavel Machek wrote:
Hi! Something is wrong with blinking on thinkpad pavel@amd:~/bt/blee$ cat /sys/class/leds/tpacpi\:\:power/trigger [none] bluetooth-power rfkill-any rfkill-none kbd-scrolllock kbd-numlock kbd-capslock kbd-kanalock kbd-shiftlock kbd-altgrlock kbd-ctrllock kbd-altlock kbd-shiftllock kbd-shiftrlock kbd-ctrlllock kbd-ctrlrlock AC-online BAT0-charging-or-full BAT0-charging BAT0-full BAT0-charging-blink-full-solid rfkill0 phy0rx phy0tx phy0assoc phy0radio phy0tpt mmc0 timer heartbeat audio-mute audio-micmute rfkill1 hci0-power rfkill5 pavel@amd:~/bt/blee$ echo 1 > /sys/class/leds/tpacpi\:\:power/brightness pavel@amd:~/bt/blee$ echo 0 > /sys/class/leds/tpacpi\:\:power/brightness pavel@amd:~/bt/blee$ Trigger indicates "none" but it keeps blinking, until I echo 0 > brightness to stop it. I have python script to trigger this behaviour... it seems to work from shell. It behaves strangely. If I ask for blinking twice, it stops blinking on second request. pavel@amd:~/bt/blee$ echo timer > /sys/class/leds/tpacpi\:\:power/trigger pavel@amd:~/bt/blee$ echo timer > /sys/class/leds/tpacpi\:\:power/trigger echoing none fixes it. Kernel 5.1.0-rc1 + some unrelated bits.
Maybe this is manifestation of the possible problem we still have in the LED core. I once proposed a patch [0]. You could try if it changes something in your case. [0] https://marc.info/?l=linux-kernel&m=151622365715313&w=2 -- Best regards, Jacek Anaszewski
