I've updated my BIOS to the latest version: CDCN35WW I have now a fresh and totally clean installation of Ubuntu 16.04.
Here's an excerpt from my DMESG which you can find attached to this post: [ 0.000035] ACPI: Core revision 20150930 [ 0.025040] ACPI Error: [\_SB_.PCI0.XHC_.RHUB.HS11] Namespace lookup failure, AE_NOT_FOUND (20150930/dswload-210) [ 0.025045] ACPI Exception: AE_NOT_FOUND, During name lookup/catalog (20150930/psobject-227) [ 0.025084] ACPI Exception: AE_NOT_FOUND, (SSDT:CB-01 ) while loading table (20150930/tbxfload-193) [ 0.030567] ACPI Error: 1 table load failures, 7 successful (20150930/tbxfload-214) [ 0.355622] pci 0000:01:00.0: can't claim BAR 6 [mem 0xfff80000-0xffffffff pref]: no compatible bridge window [ 0.355647] pci 0000:01:00.0: BAR 6: no space for [mem size 0x00080000 pref] [ 0.355648] pci 0000:01:00.0: BAR 6: failed to assign [mem size 0x00080000 pref] [ 1.014162] mmc0: Unknown controller version (3). You may experience problems. [ 1.943569] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-8000C-19.ucode failed with error -2 [ 1.943596] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-8000C-18.ucode failed with error -2 [ 1.943603] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-8000C-17.ucode failed with error -2 [ 1.947507] iwlwifi 0000:08:00.0: Unsupported splx structure [ 2.752029] Bluetooth: hci0: Failed to send firmware data (-38) [ 4.755825] Bluetooth: hci0 command 0xfc05 tx timeout [ 9.634400] usb 1-11: USB disconnect, device number 5 [ 9.634710] Bluetooth: hci0: Reading Intel version information failed (-19) [ 11.436894] Bluetooth: hci0: Setting Intel event mask failed (-16) [ 0.858435] [Firmware Bug]: No valid trip found [ 0.861605] [Firmware Bug]: No valid trip found This one is the most annoying error, it appears on screen during booting: failure writing sector 0x21c8800 to 'hd0' press any key to continue... ** Attachment added: "dmesg_lenovo_Y700-17ISK_bios_CDCN35WW.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553688/+attachment/4658993/+files/dmesg_lenovo_Y700-17ISK_bios_CDCN35WW.txt -- 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/1553688 Title: Lenovo Y700-17ISK: mmc0: Unknown controller version (3) Status in linux package in Ubuntu: Confirmed Bug description: After installing and updating Xenial, dmesg notes: [ 1.001432] mmc0: Unknown controller version (3). You may experience problems. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-10-generic 4.4.0-10.25 ProcVersionSignature: Ubuntu 4.4.0-10.25-generic 4.4.3 Uname: Linux 4.4.0-10-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: aljosa 1776 F.... pulseaudio CurrentDesktop: Unity Date: Sun Mar 6 11:18:43 2016 HibernationDevice: RESUME=UUID=ac022671-63df-40ae-bffe-66fff3b35125 InstallationDate: Installed on 2016-03-05 (0 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160304) MachineType: LENOVO 80Q0 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-10-generic.efi.signed root=UUID=aa4325c4-4b4c-4372-b8ca-a66c3e5b2aa6 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-10-generic N/A linux-backports-modules-4.4.0-10-generic N/A linux-firmware 1.156 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/31/2016 dmi.bios.vendor: LENOVO dmi.bios.version: CDCN30WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: Allsparks 7A dmi.board.vendor: LENOVO dmi.board.version: NO DPK dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo ideapad Y700-17ISK dmi.modalias: dmi:bvnLENOVO:bvrCDCN30WW:bd01/31/2016:svnLENOVO:pn80Q0:pvrLenovoideapadY700-17ISK:rvnLENOVO:rnAllsparks7A:rvrNODPK:cvnLENOVO:ct10:cvrLenovoideapadY700-17ISK: dmi.product.name: 80Q0 dmi.product.version: Lenovo ideapad Y700-17ISK dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553688/+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