Po-Hsu Lin as per your https://launchpadlibrarian.net/142301498/BootDmesg.txt : [ 0.232695] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
Hence, as per http://www.dell.com/support/drivers/us/en/19/Product/vostro-2420 an update is available for your BIOS (A11). If you update to this following https://help.ubuntu.com/community/BiosUpdate , does it change anything? If it doesn't, could you please both specify what happened, and just provide the output of the following terminal command: sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date Thank you for your understanding. ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Tags removed: bios-outdated-a08 ** Tags added: bios-outdated-a11 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1190482 Title: [Dell Vostro 2420] Internal speaker does not show up in "Sound settings" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1190482/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
