1) tud254222 ~$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date A09 11/18/2015
2) I tested it against 4.4.0 and 4.4.0_rc8 since the latter is more recent 4.4.0: [ 84.138626] sdhci: Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock [ 84.140408] mmc0: tuning execution failed [ 84.140413] mmc0: error -5 whilst initialising SD card tud254222 ~$ uname -a Linux tud254222 4.4.0-040400-generic #201601101930 SMP Mon Jan 11 00:32:41 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux 4.4.0_rc8: [ 93.507938] sdhci: Timeout waiting for Buffer Read Ready interrupt during tuning procedure, falling back to fixed sampling clock [ 93.509711] mmc0: tuning execution failed [ 93.509716] mmc0: error -5 whilst initialising SD card tud254222 ~$ uname -a Linux tud254222 4.4.0-040400rc8-generic #201601130531 SMP Wed Jan 13 10:33:09 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1514821 Title: SD card reader on Dell E7250 doesn't work in Ubuntu 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1514821/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs