Arch Linux

wadk

Member

Registered: 2021-02-11

Posts: 18

[SOLVED] Deepin daemon backlight_helper giving problems

Deepin backlight_helper needs to be stopped or uninstalled permanently in my system. Is there a way to config deepin or dbus daemon? Alternatively, can I somehow prevent reinstallation of backlight_helper?

I already tried systemctl (backlight_helper is not started by systemctl directly), pacman -Rs (xorg-xbacklight is the only backlight related program), removal of file (comes back after update), changing the code of the application (gets replaced by update).

Here's the relevant journalctl -b:

Feb 12 12:41:12 arch dbus-daemon[422]: [system] Activating service name='com.deepin.daemon.helper.Backlight' requested by ':1.33' (uid=0 pid=1063 comm="/usr/lib/deepin-daemon/dde-system-daemon ") (using servicehelper)
...
Feb 12 12:42:12 arch dbus-daemon[422]: [system] Failed to activate service 'com.deepin.daemon.helper.Backlight': timed out (service_start_timeout=25000ms)
Feb 12 12:42:12 arch daemon/dde-system-daemon[1063]: utils.go:55: Failed to activate service 'com.deepin.daemon.helper.Backlight': timed out (service_start_timeout=25000ms)
Feb 12 12:42:12 arch dde-system-daemon[1063]: <warning> utils.go:55: Failed to activate service 'com.deepin.daemon.helper.Backlight': timed out (service_start_timeout=25000ms)

How is it bugged? It still runs in the system. It takes 20-40% cpu seen in "top" and inflates "journalctl -b" to gigs by leaving these entries all over:

Feb 12 12:42:12 arch kernel: data: 00 00 00 00 00 00 00 00
Feb 12 12:42:12 arch kernel: data: 76 ae c0 1f 84 99 ff ff ff ff 20 2a 81 99 ff ff
Feb 12 12:42:12 arch kernel: data: ff ff 40 1f 84 99 ff ff
Feb 12 12:42:12 arch kernel: data: 76 c4 ff ff 00 00 00 00 00 00 00 00 00 00 00 00
Feb 12 12:42:12 arch kernel: data: 00 00 00 00 5d 00 00 00
Feb 12 12:42:12 arch kernel: data: 76 da 00 00 00 00 00 00 00 00 6c 04 00 f0 01 00
Feb 12 12:42:12 arch kernel: data: 00 00 00 00 00 00 00 00
Feb 12 12:42:12 arch kernel: data: 76 f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00

tl;dr how to configure dde-system-daemon or dbus-daemon to not launch backlight_helper.

BTW, I'm also trying dconf editor to find any toggles for backlight_helper, nothing yet.

https://man.archlinux.org/man/extra/dco … ditor.1.en

Currently I am thinking changing the application file permissions to only user.

Last edited by wadk (2021-02-13 06:11:33)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 77,595

Re: [SOLVED] Deepin daemon backlight_helper giving problems

man pacman.conf

See the "NoExtract" option.

The binary is shipped w/ https://archlinux.org/packages/communit … in-daemon/ and dbus activated by usr/share/dbus-1/system-services/com.deepin.daemon.helper.Backlight.service and there's also a usr/share/dbus-1/system.d/com.deepin.daemon.helper.Backlight.conf that might allow you to address your issue. (That's all I can tell - not a deepin user…)

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wadk

Member

Registered: 2021-02-11

Posts: 18

Re: [SOLVED] Deepin daemon backlight_helper giving problems

man pacman.conf

See the "NoExtract" option.

The binary is shipped w/ https://archlinux.org/packages/communit … in-daemon/ and dbus activated by usr/share/dbus-1/system-services/com.deepin.daemon.helper.Backlight.service and there's also a usr/share/dbus-1/system.d/com.deepin.daemon.helper.Backlight.conf that might allow you to address your issue. (That's all I can tell - not a deepin user…)

Thanks a lot, I'll be using NoExtract aggressively now. Might install KDE for now since it is lighter.

Last edited by wadk (2021-02-12 19:39:58)