I guess it depends on how user programs are currently using the systemd version API to check things. KDE PowerDevil strips everything before the space and just compares against the number, so in principle, the shim could use the prefix string to say something. I don't know how others use the API.
KDE PowerDevil usage is here: https://projects.kde.org/projects/kde/kde-workspace/repository/revisions/master/entry/powerdevil/daemon/backends/upower/powerdevilupowerbackend.cpp#L40 A cleaner approach to handling this would be an API for advertising implemented features so programs aren't checking the version to see if something is supported. Instead, they check if a feature they require is supported. It's the best way if you're just going to implement part of systemd, but you'd have to convince upstream to implement such an API. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to upower in Ubuntu. https://bugs.launchpad.net/bugs/1196752 Title: Suspend only works once when using upower with logind -- s-shim needs to call /lib/systemd/system-sleep/* Status in “systemd” package in Ubuntu: Invalid Status in “systemd-shim” package in Ubuntu: Confirmed Status in “upower” package in Ubuntu: Fix Released Status in “upower” package in Debian: Fix Released Bug description: On saucy with upower 0.9.20-1ubuntu2, suspending via UPower (or the KDE suspend menu) only works once: dbus-send --print-reply --system --dest=org.freedesktop.UPower /org/freedesktop/UPower org.freedesktop.UPower.Suspend and resuming works the first time. However, calling it again after resume returns: "Sleep has already been requested and is pending" Sleeping directly via logind works every time: dbus-send --print-reply --system --dest=org.freedesktop.login1 /org/freedesktop/login1 org.freedesktop.login1.Manager.Suspend boolean:true Returning FALSE for the LOGIND_AVAILABLE() case in gboolean up_backend_emits_resuming (UpBackend *backend) in src/linux/up- backend.c allows suspending multiple times via UPower (or the KDE suspend menu). UPower is somehow not getting the resume signal from logind. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1196752/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
