When i got my shiny new ZenBook 13 UX331UN in July, i immediately wiped it and installed Ubuntu 18.04 (Bionic Beaver).<\/p>\n\n\n\n
But I soon realized something was wrong with suspend: The laptop would go to sleep and over night the battery would either almost (10-ish percent) or completely drain, leaving the laptop completely powered off.<\/p>\n\n\n\n
On other laptops the suspend state would eat about 5% charge per day, leaving you able to suspend around 3 weeks in theory, but something was using the battery in suspend here.<\/p>\n\n\n\n
Here’s the problem analysis:<\/strong><\/p>\n\n\n\n Suspend your laptop. Wake it up again. Now check the output of<\/p>\n\n\n\n sudo journalctl | grep „PM: suspend“ | tail -2<\/p><\/blockquote>\n\n\n\n May 13 18:41:00 mex kernel: PM: suspend entry (s2idle) If you end up with\u00a0<\/p>\n\n\n\n Your laptop is only entering „s2idle“ sleep (which is basicallynot saving much more than with blanking out screen and disabling the network). What we really want instead is the „deep“ sleep.<\/p>\n\n\n\n You can also check<\/p>\n\n\n\n cat \/sys\/power\/mem_sleep<\/p><\/blockquote>\n\n\n\n which yields<\/p>\n\n\n\n [ s2idle] deep<\/p><\/blockquote>\n\n\n\n meaning the s2idle state is active in standby, because it’s written in brackets.<\/p>\n\n\n\n The permanent fix:<\/strong><\/p>\n\n\n\n Edit your grub bootloader config to add a parameter to your Linux kernel when it boots. Type<\/p>\n\n\n\n sudo gedit \/etc\/default\/grub<\/p><\/blockquote>\n\n\n\n and replace the line\u00a0GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash“ with<\/p>\n\n\n\n GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash mem_sleep_default=deep“<\/p><\/blockquote>\n\n\n\n Save the file and exit. Now run<\/p>\n\n\n\n sudo update-grub && sudo reboot<\/p><\/blockquote>\n\n\n\n To apply the changes and reboot. Test. Done.<\/p>\n\n\n\n IMPORTANT:<\/strong> If you now have troble waking your laptop up, DO NOT USE THE NVIDIA DRIVERS<\/strong>. They suck. Use noveau.<\/p>\n\n\n\n EDIT: The above works and is tested, but i now have the problem that the laptop won’t resume when on battery. When it’s on power supply it can resume. Any ideas!?<\/p>\n\n\n\n EDIT: You’re\u00a0 not alone:\u00a0https:\/\/bugzilla.kernel.org\/show_bug.cgi?id=201307<\/a> and\u00a0https:\/\/askubuntu.com\/questions\/1071855\/ubuntu-18-04-does-not-wake-up-from-suspend-on-asus-zenbook<\/a><\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" When i got my shiny new ZenBook 13 UX331UN in July, i immediately wiped it and installed Ubuntu 18.04 (Bionic Beaver). But I soon realized something was wrong with suspend: The laptop would go to sleep and over night the battery would either almost (10-ish percent) or completely drain, leaving the laptop completely powered off. […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[4],"tags":[543,547,548,546,541,367,542,47,545,544],"class_list":["post-3863","post","type-post","status-publish","format-standard","hentry","category-techtalk","tag-asus","tag-battery","tag-drain","tag-laptop","tag-noveau","tag-power","tag-suspend","tag-ubuntu","tag-ux331un","tag-zenbook"],"_links":{"self":[{"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/posts\/3863","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/comments?post=3863"}],"version-history":[{"count":6,"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/posts\/3863\/revisions"}],"predecessor-version":[{"id":3905,"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/posts\/3863\/revisions\/3905"}],"wp:attachment":[{"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/media?parent=3863"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/categories?post=3863"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rephlex.de\/blog\/wp-json\/wp\/v2\/tags?post=3863"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}