On Asus UX331UN running Linux Mint 19.012 and bios v308 with the same issue of draining the battery in suspend mode, when wake up if you "cat /sys/power/mem_sleep" you get "[s2idle] deep" .
The solution was to install kernel 5.2.11 with the app Ukuu Kernel Update Utility. The system is running an MX150 with drivers Nvidia versio 430-26-0ubuntu0 18.04.2 and selected GPU is Intel. I have run tests only on the Intel GPU as I use the Nvidia one too rarely. After the kernel install and reboot I have left the laptop in suspend mode for 13h55min and the battery drop was 20%. on kernel 4.20.11 I was getting 50% drop in battery while in suspend mode after 5 hours. IMHO the aforementioned issue in this post is solved . BR, Mike -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1808957 Title: Dell XPS 13 (9370) defaults to s2idle sleep/suspend instead of deep, NVMe drains lots of power under s2idle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1808957/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
