Public bug reported: I'm not sure but this bug might be a duplicate of #345625.
Here is what is happening: I make my machine to suspend either by closing the lid or by pressing "Stand by" key or choosing "Suspend" from "Shut down" menu. It always go to sleep properly what can be seen by slowly oscillating power diode (this is how my machine indicates that it's in sleep mode). The problem appears when I want to resume my machine and it seems to depend on A/C adapter state. When the A/C adaptor is detached while suspending machine and stays detached till resume, all resumes I had tried were successful. In case of when the suspension and resumption occur while A/C adaptor is attached, approximately 4 of 5 resumes fail. When I suspend my machine with A/C adaptor attached and then try to resume it with A/C adaptor detached 100% resumes fail. This is also true in opposite situation when suspension is done with A/C detached and resumption with A/C attached. When resume fails I don't see flashing caps-lock or similar. Keyboard, touch-pad are not responding and the screen stays black (back-light of my screen is turned off, it is like after typing the "xset dpms force off" command). I think that HDD is turned off because I can't hear noise of its head falling after hard reset like it can be heard when I do hard reset from normally working system. Resumption after hibernation works well on my system in any circumstances. In previous version of Ubuntu - Intrepid - I did not make any tests but majority of resumes were successful (I think 1 of 10 resumes failed). ProblemType: KernelOops Annotation: This occured during a previous suspend and prevented it from resuming properly. Architecture: i386 CurrentDmesg: [ 39.968079] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 50.480023] eth1: no IPv6 routers present [ 72.317163] ieee80211_crypt: registered algorithm 'WEP' [ 76.083547] CPU0 attaching NULL sched-domain. [ 76.092051] CPU0 attaching NULL sched-domain. DistroRelease: Ubuntu 9.04 ExecutablePath: /usr/share/apport/apportcheckresume Failure: suspend/resume InterpreterPath: /usr/bin/python2.6 MachineType: Dell Inc. Inspiron 6000 Package: linux-image-2.6.28-11-generic 2.6.28-11.40 ProcAttrCurrent: unconfined ProcCmdLine: root=UUID=262d8664-c3f2-4ed9-9a17-e98fe089b246 ro quiet splash ProcCmdline: /usr/bin/python /usr/share/apport/apportcheckresume ProcEnviron: PATH=(custom, no user) ProcVersionSignature: Ubuntu 2.6.28-11.40-generic SourcePackage: linux Tags: resume suspend Title: [Dell Inc. Inspiron 6000] suspend/resume failure UserGroups: pulse pulse-access pulse-rt ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: apport-kerneloops i386 resume suspend -- Dell Inspiron 6000 fails to resume https://bugs.launchpad.net/bugs/358357 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs