[Bug 1283938] Re: [Samsung NP535U4X-S01TH] Ubuntu 14.04 blank screen after wakeup from sleep
Just to update my earlier comment #203, I still had this bug occur occasionally even afterwards, though at a reduced rate. After doing some more testing recently, I've been able to avoid this problem completely by turning off the System-monitor extension in Gnome tweak tool. I was then able to revert my change in #203 with no issues. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1283938 Title: [Samsung NP535U4X-S01TH] Ubuntu 14.04 blank screen after wakeup from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1283938/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1442311] Re: Ubuntu 14.04 blank screen after wakeup from sleep
Just to update this bug, I still had this bug occur occasionally even afterwards, though at a greatly reduced rate. After doing some more testing recently, I've been able to avoid this problem completely by turning off the System-monitor extension in Gnome tweak tool. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1442311 Title: Ubuntu 14.04 blank screen after wakeup from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1442311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1442311] Re: Ubuntu 14.04 blank screen after wakeup from sleep
Update: I've not hit this bug after 5 days now, and I need to restart to apply security updates. To recap, the fix was to add the following to /etc/rc.local : echo auto > /sys/class/drm/card0/device/power_profile -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1442311 Title: Ubuntu 14.04 blank screen after wakeup from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1442311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1442311] Re: Ubuntu 14.04 blank screen after wakeup from sleep
Radeon.dpm managed to crash the whole system (had to do a hard cutoff, caps-lock key wasn't even registering) I've switched the power management back to "profile", but instead of using the default profile I've switched to "auto". After 15 tries I've not hit this bug. I'll continue with this setup for a while to give it a better test. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1442311 Title: Ubuntu 14.04 blank screen after wakeup from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1442311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1442311] Re: Ubuntu 14.04 blank screen after wakeup from sleep
I remembered that I had some kernel parameters set, so I turned off the CLUTTER_VBLANK fix and experimented a bit. I used gnome-shell to suspend, then resume and log in repeatedly until gnome-shell locked up. (default ubuntu kernel parameters) = bug on 7th try radeon.audio=1 = bug on 1st try radeon.audio=1 noautogroup = bug on 2nd try radeon.audio=1 radeon.dpm=1 noautogroup = no bug yet (15 tries) I'll keep the machine like this and update if it bugs again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1442311 Title: Ubuntu 14.04 blank screen after wakeup from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1442311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1442311] Re: Ubuntu 14.04 blank screen after wakeup from sleep
Well, after 3 days and I don't know how many suspends / lock screens later this bug hit me again. Let me see if I can get some more information. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1442311 Title: Ubuntu 14.04 blank screen after wakeup from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1442311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1442311] Re: Ubuntu 14.04 blank screen after wakeup from sleep
I cannot install a daily build on this machine, is there a live-usb image with gnome-shell I can test? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1442311 Title: Ubuntu 14.04 blank screen after wakeup from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1442311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1283938] Re: [Samsung NP535U4X-S01TH] Ubuntu 14.04 blank screen after wakeup from sleep
For me the fix was to add: export CLUTTER_VBLANK=none to /etc/environment -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1283938 Title: [Samsung NP535U4X-S01TH] Ubuntu 14.04 blank screen after wakeup from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1283938/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1442311] Re: Ubuntu 14.04 blank screen after wakeup from sleep
I finally found some time to work on this, and I think I have it fixed. Debugging gnome-shell when I hit this bug (note, I could also trigger this bug by allowing the screen to lock, no suspend necessary) I noticed the following backtrace kept happening: Thread 1 (Thread 0x7f920ec68a40 (LWP 12089)): #0 0x7f920b9f912d in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x7f9202b8ab72 in poll (__timeout=-1, __nfds=1, __fds=0x7fff76528300) at /usr/include/x86_64-linux-gnu/bits/poll2.h:46 #2 _xcb_conn_wait (c=c@entry=0x7f9ed0, cond=cond@entry=0x7fff76528420, vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:447 #3 0x7f9202b8c3ff in wait_for_reply (c=c@entry=0x7f9ed0, request=29601, e=e@entry=0x0) at ../../src/xcb_in.c:490 #4 0x7f9202b8c512 in xcb_wait_for_reply (c=0x7f9ed0, request=29601, e=0x0) at ../../src/xcb_in.c:520 #5 0x7f91f8e4b4ce in dri2WaitForMSC (pdraw=0xca4900, target_msc=0, divisor=2, remainder=0, ust=0x7fff76528550, msc=0x7fff76528558, sbc=0x7fff76528560) at ../../../../src/glx/dri2_glx.c:480 #6 0x7f92090478f6 in _cogl_winsys_wait_for_vblank (onscreen=onscreen@entry=0xca12e0) at ./winsys/cogl-winsys-glx.c:1606 #7 0x7f9209048016 in _cogl_winsys_onscreen_swap_region (onscreen=0xca12e0, user_rectangles=, n_rectangles=) at ./winsys/cogl-winsys-glx.c:1808 #8 0x7f920903d341 in cogl_onscreen_swap_region (onscreen=0xca12e0, rectangles=rectangles@entry=0x7fff76528700, n_rectangles=n_rectangles@entry=1) at ./cogl-onscreen.c:337 #9 0x7f920ce13662 in clutter_stage_cogl_redraw (stage_window=0x855b80) at ./cogl/clutter-stage-cogl.c:641 #10 0x7f920ce77887 in clutter_stage_do_redraw (stage=0xd11bf0) at ./clutter-stage.c:1184 #11 _clutter_stage_do_update (stage=0xd11bf0) at ./clutter-stage.c:1242 #12 0x7f920ce5e028 in master_clock_update_stages (master_clock=0xbe7880, stages=0x35dca30) at ./clutter-master-clock.c:457 #13 clutter_clock_dispatch (source=, callback=, user_data=) at ./clutter-master-clock.c:589 #14 0x7f920c13ee04 in g_main_dispatch (context=0x7d35f0) at /build/buildd/glib2.0-2.40.2/./glib/gmain.c:3064 #15 g_main_context_dispatch (context=context@entry=0x7d35f0) at /build/buildd/glib2.0-2.40.2/./glib/gmain.c:3663 #16 0x7f920c13f048 in g_main_context_iterate (context=0x7d35f0, block=block@entry=1, dispatch=dispatch@entry=1, self=) at /build/buildd/glib2.0-2.40.2/./glib/gmain.c:3734 #17 0x7f920c13f30a in g_main_loop_run (loop=0x7d3390) at /build/buildd/glib2.0-2.40.2/./glib/gmain.c:3928 #18 0x7f920d883021 in meta_run () at core/main.c:556 #19 0x00401d11 in main (argc=1, argv=0x7fff76528b08) at main.c:439 Specifically frame #6, it appeared to be endlessly waiting for a vblank. So I added the following to /etc/environment: export CLUTTER_VBLANK=none I have just done suspend and resume 20 times without issue, whereas previously I could trigger this bug after 3 or 4 on average. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1442311 Title: Ubuntu 14.04 blank screen after wakeup from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1442311] Re: Ubuntu 14.04 blank screen after wakeup from sleep
Instead of doing that, I decided to do a quick sanity check. I installed kernel 3.4-precise from the upstream kernel archives, which I know worked fine when I was running 12.04 with gnome shell (even the updated gnome-shell from the webupd8team ppa, I believe the version was 3.8?) Sure enough, I've reproduced this bug. At this point I'm not sure this is a kernel issue or not. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1442311 Title: Ubuntu 14.04 blank screen after wakeup from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1442311] Re: Ubuntu 14.04 blank screen after wakeup from sleep
Just tried 4.0.0 , and on first try I triggered this issue. I was, however, able to kill gnome-setting-daemon and then gnome-shell from a terminal. This then caused the lock screen to appear and I was able to log in. I've had this happen sometimes in the past before, so I consider this no change. No suspect messages in dmesg or Xorg.0.log ** Tags added: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1442311 Title: Ubuntu 14.04 blank screen after wakeup from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1283938] Re: [Samsung NP535U4X-S01TH] Ubuntu 14.04 blank screen after wakeup from sleep
This just happened to me and got some messages in dmesg, filed bug 1442311 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1283938 Title: [Samsung NP535U4X-S01TH] Ubuntu 14.04 blank screen after wakeup from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1283938/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1442311] [NEW] Ubuntu 14.04 blank screen after wakeup from sleep
Public bug reported: Possibly related to bug 1283938 . I have disabled lock screen on suspend to try and get around the bug but it obviously hasn't worked. I see a completely black screen with a working mouse cursor. Used Ctrl- Alt-F2 to login at a text terminal and tried to kill gnome-settings- daemon and gnome-shell (doing so has randomly made it work in the past). The gnome-shell process would not kill and I got segfault dmesg errors which are attached. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: gnome-shell 3.10.4-0ubuntu5.2 ProcVersionSignature: Ubuntu 3.16.0-33.44~14.04.1-generic 3.16.7-ckt7 Uname: Linux 3.16.0-33-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.8 Architecture: amd64 CurrentDesktop: GNOME Date: Thu Apr 9 14:31:20 2015 DisplayManager: gdm EcryptfsInUse: Yes InstallationDate: Installed on 2014-05-24 (319 days ago) InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release amd64+mac (20140204) SourcePackage: gnome-shell UpgradeStatus: Upgraded to trusty on 2014-09-21 (200 days ago) ** Affects: gnome-shell (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug gnome3-ppa third-party-packages trusty ** Attachment added: "gnome-shell-crash" https://bugs.launchpad.net/bugs/1442311/+attachment/4370758/+files/gnome-shell-crash -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1442311 Title: Ubuntu 14.04 blank screen after wakeup from sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1442311/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1310800] Re: 056a:0302 Trusty Tahr, kernel 3.13: automatic load of wacom.ko driver cause a "hard" kernel panic
I can reliably trigger this bug on my machine in the 3.16 and 3.13 kernels. I've attached the kernel crash output for 3.16 (minus the dump because of its size, I can provide a link if desired). Adding wacom to /etc/modules prevents this bug for me. ** Attachment added: "linux-image-3.16.0-31-generic_crash.tar.gz" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1310800/+attachment/4343792/+files/linux-image-3.16.0-31-generic_crash.tar.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1310800 Title: 056a:0302 Trusty Tahr, kernel 3.13: automatic load of wacom.ko driver cause a "hard" kernel panic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1310800/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1323468] [NEW] segfault setting the length of an array within an associative array
Public bug reported: Writing to the length of an array that is contained within an associative array causes a segfault at runtime. Attached is an example program. ** Affects: gdc-4.6 (Ubuntu) Importance: Undecided Status: New ** Attachment added: "test.d" https://bugs.launchpad.net/bugs/1323468/+attachment/4120396/+files/test.d -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1323468 Title: segfault setting the length of an array within an associative array To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdc-4.6/+bug/1323468/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
