[Bug 1001550] [NEW] LibreOffice Calc causes high CPU usage in Xorg when displaying marching ants
Public bug reported: To reproduce (on my system): 1. Run LibreOffice calc (I had imported a CSV with 3 columns and about 300 rows) 2. Select any cell 3. Press Ctrl+C to copy 4. marching ants selection appears At this point, Xorg is now using 100% CPU on one of my processors. Clearing the selection (by typing in another cell) clears the marching ants selection, at which time CPU usage returns to normal. This survives a restart of the application, or a reboot. Same issue will occur. Running Ubuntu 12.04 LTS 64-bit on a Lenovo ThinkPad T61, 4GB RAM, NVIDIA Quadro 140M running the proprietary nvidia driver. All drivers, software, BIOS, etc. are at latest versions. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: libreoffice-calc 1:3.5.3-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14 Uname: Linux 3.2.0-24-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.0.1-0ubuntu7 Architecture: amd64 Date: Sat May 19 00:13:51 2012 InstallationMedia: Ubuntu 12.04 LTS Precise Pangolin - Release amd64 (20120425) ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: libreoffice UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: libreoffice (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1001550 Title: LibreOffice Calc causes high CPU usage in Xorg when displaying marching ants To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1001550/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1001550] Re: LibreOffice Calc causes high CPU usage in Xorg when displaying marching ants
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1001550 Title: LibreOffice Calc causes high CPU usage in Xorg when displaying marching ants To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1001550/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1001550] Re: LibreOffice Calc causes high CPU usage in Xorg when displaying marching ants
Disabling Hardware Acceleration and Anti-Alaising see a notable decrease in CPU usage; it still spikes but doesn't bring my system to a crawl. Notably: This may be tied to the NVIDIA PowerMizer settings. So when you're in Adaptive mode, it's supposed to spool up the clock speed on the card when the power is needed. It looks to me like the marching ants selection is taxing on the GPU, but PowerMizer often fails to increase the card's clock speed when it's taxed by LibreOffice. What I'm finding is: + If do something else that taxes the GPU, like initiate a transparent window somewhere, PowerMizer increases the clock speed, and LibreOffice begins performing better + If I set PowerMizer to Maximum Performance rather than adaptive, the problem goes away. (however, Xorg still uses about 33% CPU whenever the marching ants are present) I have not had a chance to try the nouveau drivers yet. Do you think it's worth a continued investigation, or does this sound like an NVIDIA bug? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1001550 Title: LibreOffice Calc causes high CPU usage in Xorg when displaying marching ants To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/1001550/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 462487] Re: [ooo-build] Calc's marching ants bring Xorg to its knees - AA issue
Unfortunately, this issue also exists in LibreOffice. I'm seeing the issue on 12.04 LTS 64-bit, running on my Lenovo T61, with NVIDIA graphics. The marching ants selection causes Xorg process to spin one CPU core at 100% usage. Clearing the marching ants (by typing in another cell or etc) returns CPU usage to normal. Please let me know what other information you need. ** Also affects: df-libreoffice Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/462487 Title: [ooo-build] Calc's marching ants bring Xorg to its knees - AA issue To manage notifications about this bug go to: https://bugs.launchpad.net/df-libreoffice/+bug/462487/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 498694] Re: [SecurityRoadmap] sometimes resume from suspend doesn't ask for password, instead goes to straight to the desktop instead.
wanted to add to this thread; this has happened to me three or four times in 12.04 LTS 64-bit, running on a Lenovo T61. Each time it's happened after closing the laptop (which suspends it automatically), and then opening the lid 20–30 minutes later (which automatically resumes). This last time, I closed the lid, waited for the suspend light to come on steady, unplugged the power, and then resumed it about 25 minutes later. This is a Lenovo T61 with an NVIDIA discreet graphics card (Quadro 140M), and I'm running the proprietary nvidia driver, version 295.40. All packages are up to date, as is all firmware on the notebook. Please let me know what I can provide you that'll help track this down. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/498694 Title: [SecurityRoadmap] sometimes resume from suspend doesn't ask for password, instead goes to straight to the desktop instead. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/498694/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
