I also experience a high CPU usage (generally around 70%, measured by top), with:
- Thunderbir 17.0.7 - Ubuntu 13.04 32bit on a ThinkPad T60 with Intel T2400 @ 1.83GHz × 2 I have several e-mail accounts on TB (total of 5, being 3 imap gmail/yahoo and 2 private imap/pop). I don't know if this is related to this bug. BUT I've notice something very simple that sort of "solves" the issue for me, apparently having to do to what is selected in the lateral folder pane: 1. IF I leave the INBOX of any account selected (or actually any other FOLDER), even though activity manager could show no recent activity for, say, the last 10 minutes, I see a turning wheel on TB's e-mail tab and I notice TB takes about 70% of CPU (measured by top). See attached screenshot. 2. On the other hand, IF I select no INBOX/FOLDER but simply click on one account (lateral pane - see attached screenshot), TB CPU usage drops to <2%, coming up eventually to 20-30% of CPU for a few seconds, every 40 seconds or so, I believe when checking for new messages. I'm only a user with no technical knowledge, but IMHO, it seems that TB actually keeps constantly updating the messages/account if and INBOX/internal FOLDER is selected, even when no activity is registered by "activity manager". Could it be? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to thunderbird in Ubuntu. https://bugs.launchpad.net/bugs/927515 Title: Thunderbird stuck at 100% CPU Status in Mozilla Thunderbird Mail and News: New Status in The Ubuntu Power Consumption Project: Confirmed Status in “thunderbird” package in Ubuntu: Triaged Bug description: Just received the automatic update last night. Ever since, thunderbird is using 20-50% CPU constantly, according to top. Turned off global search and indexing to no avail. This is really bad for me as it's driving up the temperature of my laptop, runs up the fan noise and reduces battery time. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: thunderbird 10.0+build1-0ubuntu0.11.10.1 ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17 Uname: Linux 3.0.0-16-generic x86_64 ApportVersion: 1.23-0ubuntu4 Architecture: amd64 BuildID: 20120129183038 Date: Mon Feb 6 10:44:55 2012 EcryptfsInUse: Yes ProcEnviron: LANGUAGE=nl_NL:nl:en PATH=(custom, user) LANG=nl_NL.UTF-8 SHELL=/bin/bash Profile0Extensions: extensions.sqlite corrupt or missing Profile0Locales: extensions.sqlite corrupt or missing Profile0Plugins: pluginreg.dat isn't available Profile0Themes: extensions.sqlite corrupt or missing Profiles: Profile0 - LastVersion=3.0.6/20100713193322 (Out of date) Profile1 (Default) - LastVersion=10.0/20120129183038 (Running) SourcePackage: thunderbird UpgradeStatus: Upgraded to oneiric on 2012-02-02 (4 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/thunderbird/+bug/927515/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

