@vanvugt Thank you for help. I modified my /etc/default/grub file like this.
#GRUB_DEFAULT=0 GRUB_DEFAULT=saved #GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX_DEFAULT="snd_hda_intel.model=lifebook-extmic" GRUB_CMDLINE_LINUX="" And "sudo update-grub" and rebooted. But no change occurred. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1821269 Title: [Aspire ES1-131, Realtek ALC255, Mic, Internal] No autoswitch (4-pole combo jack mic doesn't detect) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1821269/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
