[Dx-packages] [Bug 830348] Re: desktop contents briefly visible on resume from suspend before lock dialog
*** This bug is a duplicate of bug 1280300 *** https://bugs.launchpad.net/bugs/1280300 I experience the same bug I am running a freshly installed Ubuntu 18.04 with unity. -- You received this bug notification because you are a member of DX Packages, which is subscribed to unity-2d in Ubuntu. https://bugs.launchpad.net/bugs/830348 Title: desktop contents briefly visible on resume from suspend before lock dialog Status in Compiz: New Status in unity-2d: Confirmed Status in gnome-screensaver package in Ubuntu: Incomplete Status in i3-wm package in Ubuntu: Confirmed Status in unity-2d package in Ubuntu: Confirmed Bug description: This seems like a recent regression on Oneiric (or perhaps I haven't noticed it before): On resume from suspend, the contents of the desktop are often briefly visible before being hidden behind the lock screen. This is a security problem if there happens to be sensitive information on the screen. =Analysis from mdeslaur= This is likely what happens: 1- Something grabs mouse: ie: virtual machine window, or GTK menu in an application or an indicator 2- Screensaver attempts to start, but cannot get exclusive lock on mouse 3- DPMS turns monitor black 4- User moves mouse, which turns the screen back on 5- Mouse movement causes mouse to get ungrabbed by vm window or gtk menu 6- Screensaver can now grab mouse, and starts This is all related to the fact that X does not have an API that will let the screensaver tell an application to release mouse and keyboard grabs. To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/830348/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp
[Dx-packages] [Bug 941673] Re: performance of accounts-daemon is very poor
** Changed in: accountsservice Status: Confirmed => Unknown -- You received this bug notification because you are a member of DX Packages, which is subscribed to accountsservice in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/941673 Title: performance of accounts-daemon is very poor Status in accountsservice: Unknown Status in accountsservice package in Ubuntu: In Progress Status in accountsservice source package in Oneiric: Won't Fix Status in accountsservice source package in Precise: In Progress Bug description: Version 11.10 The performance of accounts-daemon is unacceptable with large password and/or group files. We have appoximately 4 users in the passwords file and 16000 lines in the group file. Having looked at the source, it appears to me the problem is that for each user is pulls from the password database (via getpwXXX) its then calls getgroups to return the users list of groups. Getgroups must make a complete pass through the group file to determine the groups for the user. When initializing this results in reading the groups file 4 times. I think a better solution is to build a inverted group file map then first time getgroups is called by reading the entire group database and building a data structure indexed by username where a users group list can by found in a single lookup. Of couse, an even better solution would be for getgroups to do that itself, but that would require much larger code changes. I tried installed nscd to see if this would make a difference but no dice. At the moment, 11.10 is unusable for us because of this problem. Hope this is all the info you need. Regards, pdg p...@uow.edu.au To manage notifications about this bug go to: https://bugs.launchpad.net/accountsservice/+bug/941673/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp
[Dx-packages] [Bug 941673]
-- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/accountsservice/accountsservice/issues/39. -- You received this bug notification because you are a member of DX Packages, which is subscribed to accountsservice in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/941673 Title: performance of accounts-daemon is very poor Status in accountsservice: Unknown Status in accountsservice package in Ubuntu: In Progress Status in accountsservice source package in Oneiric: Won't Fix Status in accountsservice source package in Precise: In Progress Bug description: Version 11.10 The performance of accounts-daemon is unacceptable with large password and/or group files. We have appoximately 4 users in the passwords file and 16000 lines in the group file. Having looked at the source, it appears to me the problem is that for each user is pulls from the password database (via getpwXXX) its then calls getgroups to return the users list of groups. Getgroups must make a complete pass through the group file to determine the groups for the user. When initializing this results in reading the groups file 4 times. I think a better solution is to build a inverted group file map then first time getgroups is called by reading the entire group database and building a data structure indexed by username where a users group list can by found in a single lookup. Of couse, an even better solution would be for getgroups to do that itself, but that would require much larger code changes. I tried installed nscd to see if this would make a difference but no dice. At the moment, 11.10 is unusable for us because of this problem. Hope this is all the info you need. Regards, pdg p...@uow.edu.au To manage notifications about this bug go to: https://bugs.launchpad.net/accountsservice/+bug/941673/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp
