|
From: Jacek A. <jac...@gm...> - 2019-04-26 18:22:38
|
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 |
