The bug doesn't seem to have anything to do with the screen locker--this is a problem with xfce4-power-manager.
On Tue, Jan 13, 2015 at 5:47 AM, Thaddaeus Tintenfisch <thad.fi...@gmail.com> wrote: > Are you able to trigger this bug if you disable light-locker or > replace > it with another screen locker? > > -- > You received this bug notification because you are subscribed to the > bug > report. > https://bugs.launchpad.net/bugs/1374830 > > Title: > Closing laptop lid before system can suspend causes black screen > upon > login after resume > > Status in xfce4-power-manager package in Ubuntu: > New > > Bug description: > On a fresh install of Xubuntu 14.04.1, with HandleLidSwitch=ignore > set > in /etc/systemd/logind.conf and the lid switch setting set to > 'Nothing' in xfce4-power-manager-settings, using the suspend key on > the keyboard to initiate suspend and then closing the laptop lid > before the system can fully suspend results in a black screen upon > logging in when the laptop is resumed. This bug still occurs using > packages from the staging ppa. > > Edit for clarity: > I believe this is different from bug #1303736 and bug #1259339 > because it does not occur as a general problem with suspending and it > does not involve suspension triggered by the closing of the laptop > lid. I can suspend and resume successfully in every other case, using > any other method, with no issues. This problem occurs only when the > laptop lid switch is set to ignore or do "nothing", the whisker menu, > a keyboard button, or some other method is used to initiate a > suspension, and the user closes the laptop before the laptop can > fully suspend. I do not believe this to be an issue with light-locker > or another package as the problem is solved by simply killing (or > uninstalling) xfce4-power-manager and using systemd's logind.conf to > handle power switches. I believe this problem will become more > widespread when the fix for bug #1307545 is imeplemented. This may be > related to the patch which was implemented in order to fix the > similar bug #1303736 as noted in > https://bugs.launchpad.net/ubuntu/+source/xubuntu-default-settings/+bug/1303736/comments/178. > > None of the fixes or workarounds mentioned in any of the above bug > reports work for this bug. > > Expected behavior: > Logging in after resuming from suspend should work exactly as it > does from a cold boot. > > Bug behavior: > After resuming from suspend mode, logging in results in a black > screen. This occurs exclusively when shutting the laptop lid, with > the lid switch set to do nothing, before the system suspends. > > Steps to reproduce: > 1) Set and uncomment HandleLidSwitch=ignore in > /etc/systemd/logind.conf > 2) ensure that lid switch suspension is diabled in > xfce4-power-manager-settings > 3) ensure that "lock screen upon suspend" is enabled in light > locker settings > 4) Press suspend hotkey on laptop, and quickly close the lid > before the laptop is able to suspend > 5) After laptop suspends, open lid to resume > 6) Move mouse to wake up display, then log in > 7) Screen goes black and lightdm must be restarted in order to > wake it up (other workarounds such as 'xset dpms force on -d :0' do > not work) > > Workaround or "solution": > Kill or uninstall the xfce4-power-manager package, and use > /etc/systemd/logind.conf to control lid and power switches. Problem > does not occur when xfce4-power-manager is not running. > > ProblemType: Bug > DistroRelease: Ubuntu 14.04 > Package: xfce4-power-manager 1.2.0-3ubuntu4.1 > ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6 > Uname: Linux 3.13.0-36-generic x86_64 > ApportVersion: 2.14.1-0ubuntu3.4 > Architecture: amd64 > CurrentDesktop: XFCE > Date: Sat Sep 27 14:31:33 2014 > InstallationDate: Installed on 2014-09-19 (7 days ago) > InstallationMedia: Xubuntu 14.04.1 LTS "Trusty Tahr" - Release > amd64 (20140723) > SourcePackage: xfce4-power-manager > UpgradeStatus: No upgrade log present (probably fresh install) > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/xfce4-power-manager/+bug/1374830/+subscriptions -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1374830 Title: Closing laptop lid before system can suspend causes black screen upon login after resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xfce4-power-manager/+bug/1374830/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
