Version: unspecified (using Devel) OS: Linux User-facing issue: My laptop has an SD card reader built-in. When I insert a card, I get two devices showing up in the plasma device notifier - one is from the HAL backend, the other from the UDisks backend. solid-hardware shows both as well. If I try to open the HAL one in Dolphin, it works fine. If I try to open the UDisks one in Dolphin, nothing happens (the paritition is not even mounted) and I get the following message in my xsession-errors: kded(4718) MacroExpander::expandEscapedMacro: DeviceServiceAction::execute: "/org/freedesktop/UDisks/devices/sdb1" is not a StorageAccess device This is clearly nonsense, as solid-hardware displays the StorageAccess properties of this device just fine. I'll note here that I don't get this problem with USB memory sticks - they work as expected. Underlying problem: Playing around with gdb, I found that the backend object for /org/freedesktop/UDisks/devices/sdb1 is null, and the reason for this is that it doesn't appear in the UDisks backend device cache in the kded process. I set a breakpoint on Solid::Backends::UDisks::UDisksManager::slotDeviceAdded, and it wasn't triggered when I inserted the SD card. In fact, none of the signals are connected. And I think the only reason my USB stick works is that I happened to have it plugged in when I logged in (so it's still in the device cache from then). Reproducible: Always
OK, I put in a debug statement to print a message if the "m_manager.isValid()" check in the UDisksManager constructor, and it is emitted when I log in (if the UDisks service isn't already running). In fact, this check always fails if UDisks isn't already running (if I kill udisks-daemon and call `solid-hardware list`, for example).
SVN commit 1198261 by alexmerry: Don't check if the UDisks service is valid - just try to connect the signals. UDisks is an autostart service, which means that it may not be valid _until_ we try to connect. BUG: 257210 M +0 -2 udisksmanager.cpp WebSVN link: http://websvn.kde.org/?view=rev&revision=1198261