{"id":1302,"date":"2007-02-13T20:44:31","date_gmt":"2007-02-13T18:44:31","guid":{"rendered":"http:\/\/vizZzion.org\/blog\/2007\/02\/powermanager-for-feisty\/"},"modified":"2007-02-13T20:44:31","modified_gmt":"2007-02-13T18:44:31","slug":"powermanager-for-feisty","status":"publish","type":"post","link":"https:\/\/vizZzion.org\/blog\/2007\/02\/powermanager-for-feisty\/","title":{"rendered":"powermanager for Feisty."},"content":{"rendered":"

\"Current<\/a><\/p>\n

\n\t\tOnly one day after I found out that Pearl Jam would be giving a concert in the park 200m
\nfrom here,
\n\t\tI read that 4 days earlier, the Red Hot Chili
\nPeppers<\/a>
\n\t\twill be giving a concert in the same venue. Tickets will be available from Saturday, I’ll
\ntry to get
\n\t\tmyself one. And I just received an email from a friend that
\n\t\tThe Levellers<\/a> will be giving a concert in Nijmegen
\nas well,
\n\t\tin March. Yay!\n\t<\/p>\n

\n\t\tThe powermanager we wrote for the Edgy Eft release cycle of Kubuntu has made quite some
\nprogress in
\n\t\tthe Feisty Fawn release cycle. Simon kindly added some code to query the XScreensaver
\nextension
\n\t\tfor the amount of seconds the system is idle, and I quickly added code to make use of that.
\n\t\tPowermanager now supports suspending the machine after it has not been touched for a
\nwhile.
\n\t\tLuka has added support for changing CPU frequencies based on if the machine is connected to
\nAC or not,
\n\t\twhich is another nice feature that should help to gain some more minutes of battery life.
\n(This stuff
\n\t\tis not enabled in the screenshot, since I’m running Edgy and Edgy’s HAL does not support
\ncpufreq.)
\n\t\tDuring the last Ubuntu developer summit, Ken and Nuno have been working on some nicer icons
\nwhich also
\n\t\tgive more fine-grained information about the battery state.
\n\t\tFinally, and most boring, we fixed numerous bugs so powermanager is as stable as never
\nbefore. We did not,
\n\t\thowever try to work around all glitches of various machines HAL reports. This kind of stuff
\nneeds to
\n\t\tbe fixed in HAL. Instead, we encouraged people to report those bugs upstream.
\n\t\tWhether or not the screen should be locked after resuming is now configurable, too.
\n\t\tWith all those changes in, we managed to keep everything compatible with the existing
\nconfiguration
\n\t\tfiles to make the upgrade process to Feisty as smooth as possible. Also, it should be
\nrelatively easy
\n\t\tto get powermanager running on any other distro, there is nothing distro-specific in it,
\nhaving HAL
\n\t\tinstalled should be sufficient.\n\t<\/p>\n

\n\t\tThere is some stuff in powermanager that makes it more flexible. Partly, it’s debugging
\nfunctionality,
\n\t\tbut it can also be very useful for various other purposes. At the top of the file
\npowermanage.py, you
\n\t\tcan find the variables SUSPEND_USE_HAL, S4_COMMAND and S3_COMMAND. Set SUSPEND_USE_HAL to
\nFalse, then
\n\t\twhenever powermanager initiates a suspend\/S3 (or hibernate\/S4) cycle, those commands will be
\nrun.
\n\t\tUseful for suspend2 users, who use the hibernate script by Bernard Blackham and who did not
\nintegrate
\n\t\tit into HAL. (The latter can be done by hacking the scripts in \/usr\/share\/hal\/scripts\/.)
\n\t\tNext, if you are not happy with some default values, powermanager uses, here’s what to do.
\n(We did
\n\t\tnot make everything configurable, but used those const values at the top of powermanage.py
\nwhereever
\n\t\twe had to find some ‘sane default’ for a setting. Most notably, you can set the default
\nvalue for
\n\t\tthe ‘Suspend when battery life is less than N minutes’, use BATTERY_CRITICAL_MINUTES in that
\ncase
\n\t\t(and set it to the amount of minutes you wish).<\/p>\n

\n","protected":false},"excerpt":{"rendered":"

Only one day after I found out that Pearl Jam would be giving a concert in the park 200m from here, I read that 4 days earlier, the Red Hot Chili Peppers will be giving a concert in the same venue. Tickets will be available from Saturday, I’ll try to get myself one. And I… Continue reading powermanager for Feisty.<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[],"class_list":["post-1302","post","type-post","status-publish","format-standard","hentry","category-kde"],"_links":{"self":[{"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/posts\/1302","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/comments?post=1302"}],"version-history":[{"count":0,"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/posts\/1302\/revisions"}],"wp:attachment":[{"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/media?parent=1302"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/categories?post=1302"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vizZzion.org\/blog\/wp-json\/wp\/v2\/tags?post=1302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}