I noticed that on 5.0.0-25-generic the module snd_hda_codec_hdmi is loaded, which is not true for 5.0.0-23-generic.
http://changelogs.ubuntu.com/changelogs/pool/main/l/linux-hwe/linux- hwe_5.0.0-25.26~18.04.1/changelog * Unhide Nvidia HDA audio controller (LP: #1836308) - PCI: Enable NVIDIA HDA controllers There was a fix to make nvidia audio controller visible that causes that module to be loaded, forcing the dedicated video card awake. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1836308 Workaround, adding: blacklist snd_hda_codec_hdmi options snd_hda_intel enable=1,0 on /etc/modprobe.d/blacklist.conf fixes the problem. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1840835 Title: High power consumption using 5.0.0-25-generic Status in linux package in Ubuntu: Incomplete Bug description: After updating to 5.0.0-25-generic kernel, battery life is considerably less and power consumption is about 10 watts more idle, using integrated graphics. This is a hybrid GPU laptop Intel HD 630/GP107M, and a possible cause is not powering off the dedicated GPU completely while using the integrated. nvidia-driver-430 GP107M [GeForce GTX 1050 Mobile] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840835/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
