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[Bug 1547934] Re: Multiple Issues with Ubuntu 16.04 on Lenovo Y700-17ISK notebook

 

After upgrading BIOS to the latest "CDCN30WW" version, changing few BIOS settings (secure boot disabled, intel virtual technology disabled, intel platform trust technology disabled), and upgrading kernel to the latest "4.4.0-8-generic" version - some problems are solved: nr.1, nr.3, nr.6, nr.12 :)
I'm particularly happy to see that the "mtrr_gran_size/mtrr_chunk_size" mess is finally eliminated from my computer (see https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1513148).

Here's a new situation with the following attached files:
"dmesg_output_kernel_4-4-0-8", "alsa-info.sh output" and
"hdajackretask_unconnected_pins":


2)
Unsolved
Notebook subwoofer still doesn't work.
Judging from "alsa-info.sh" output, there is no pin declared for the bass output by BIOS.


4)
Unsolved
DMESG output:
[    1.004878] mmc0: Unknown controller version (3). You may experience problems.


5)
Unsolved
DMESG output:
[    1.899209] Intel(R) Wireless WiFi driver for Linux
[    1.899211] Copyright(c) 2003- 2015 Intel Corporation
[    1.907774] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-8000C-19.ucode failed with error -2
[    1.907796] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-8000C-18.ucode failed with error -2
[    1.907806] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-8000C-17.ucode failed with error -2
[    1.925687] iwlwifi 0000:08:00.0: loaded firmware version 16.242414.0 op_mode iwlmvm
[    1.943334] iwlwifi 0000:08:00.0: Unsupported splx structure


7)
Unsolved
DMESG output:
[    0.000029] pid_max: default: 32768 minimum: 301
[    0.000033] ACPI: Core revision 20150930
[    0.025173] ACPI Error: [\_SB_.PCI0.XHC_.RHUB.HS11] Namespace lookup failure, AE_NOT_FOUND (20150930/dswload-210)
[    0.025177] ACPI Exception: AE_NOT_FOUND, During name lookup/catalog (20150930/psobject-227)
[    0.025217] ACPI Exception: AE_NOT_FOUND, (SSDT:CB-01   ) while loading table (20150930/tbxfload-193)
[    0.030615] ACPI Error: 1 table load failures, 7 successful (20150930/tbxfload-214)


8)
Unsolved
DMESG output:
[    0.844765] [Firmware Bug]: No valid trip found
[    0.845339] [Firmware Bug]: No valid trip found


9)
Unsolved
DMESG output:
[    0.238897] ACPI: Using IOAPIC for interrupt routing
[    0.238929] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug


10)
Unsolved
DMESG output:
[    0.209658] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored


11)
Unsolved
DMESG output:
[    1.084723] [Firmware Bug]: ACPI(PEGP) defines _DOD but not _DOS


13)
New problem
Boot error:
failure writing sector 0x21c8800 to 'hd0'
press any key to continue...


14)
New problem
[    0.353634] clocksource: acpi_pm: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 2085701024 ns
[    0.353640] pci 0000:01:00.0: can't claim BAR 6 [mem 0xfff80000-0xffffffff pref]: no compatible bridge window
[    0.353682] pci 0000:01:00.0: BAR 6: no space for [mem size 0x00080000 pref]
[    0.353683] pci 0000:01:00.0: BAR 6: failed to assign [mem size 0x00080000 pref]

** Attachment added: "lenovo notebook issues"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1547934/+attachment/4582684/+files/lenovo_notebook_issues.tar.gz

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https://bugs.launchpad.net/bugs/1547934

Title:
  Multiple Issues with Ubuntu 16.04 on Lenovo Y700-17ISK notebook

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Hello, here is a list of problems I've noticed after installing the
  testing version of the upcoming Ubuntu 16.04 on my new Lenovo
  Y700-17ISK notebook:

  1)
  Wireless/WiFi connection doesn't work
  (Wireless is disabled by hardware switch, so I can't enable my wifi connection)

  2)
  Notebook subwoofer doesn't work

  3)
  DMESG output:
  [    0.303800] platform MSFT0101:00: failed to claim resource 1
  [    0.303803] acpi MSFT0101:00: platform device creation failed: -16

  4)
  DMESG output:
  [    1.008640] mmc0: Unknown controller version (3). You may experience problems.

  5)
  DMESG output:
  [    1.917551] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-8000C-19.ucode failed with error -2
  [    1.917562] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-8000C-18.ucode failed with error -2
  [    1.917569] iwlwifi 0000:08:00.0: Direct firmware load for iwlwifi-8000C-17.ucode failed with error -2
  [    1.918204] iwlwifi 0000:08:00.0: Unsupported splx structure

  6)
  DMESG output:
  [    3.878249] Bluetooth: hci0: Setting Intel event mask failed (-16)

  7)
  DMESG output:
  [    0.000033] ACPI: Core revision 20150930
  [    0.026490] ACPI Error: [\_SB_.PCI0.XHC_.RHUB.HS11] Namespace lookup failure, AE_NOT_FOUND (20150930/dswload-210)
  [    0.026495] ACPI Exception: AE_NOT_FOUND, During name lookup/catalog (20150930/psobject-227)
  [    0.026533] ACPI Exception: AE_NOT_FOUND, (SSDT:CB-01   ) while loading table (20150930/tbxfload-193)
  [    0.031959] ACPI Error: 1 table load failures, 9 successful (20150930/tbxfload-214)

  8)
  DMESG output:
  [    0.843979] [Firmware Bug]: No valid trip found
  [    0.844491] [Firmware Bug]: No valid trip found

  9)
  DMESG output:
  [    0.239800] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug

  10)
  DMESG output:
  [    0.210582] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored

  11)
  DMESG output:
  [    1.082502] [Firmware Bug]: ACPI(PEGP) defines _DOD but not _DOS

  12)
  DMESG output:
  [    0.000000] Linux version 4.4.0-6-generic (buildd@lgw01-21) (gcc version 5.3.1 20160211 (Ubuntu 5.3.1-8ubuntu3) ) #21-Ubuntu SMP Tue Feb 16 20:32:27 UTC 2016 (Ubuntu 4.4.0-6.21-generic 4.4.1)
  [    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-6-generic.efi.signed root=UUID=64e94552-5d3c-4123-b492-a473889ee0f1 ro quiet splash vt.handoff=7
  [    0.000000] efi: EFI v2.40 by LENOVO
  [    0.000000] efi:  SMBIOS=0x75802000  ESRT=0x75800e18  ACPI 2.0=0x77ffd014 
  [    0.000000] esrt: Reserving ESRT space from 0x0000000075800e18 to 0x0000000075800e50.
  [    0.000000] SMBIOS 2.8 present.
  [    0.000000] DMI: LENOVO 80Q0/Allsparks 7A, BIOS CDCN26WW 10/12/2015
  [    0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
  [    0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
  [    0.000000] e820: last_pfn = 0x482800 max_arch_pfn = 0x400000000
  [    0.000000] MTRR default type: uncachable
  [    0.000000] MTRR fixed ranges enabled:
  [    0.000000]   00000-9FFFF write-back
  [    0.000000]   A0000-BFFFF uncachable
  [    0.000000]   C0000-FFFFF write-protect
  [    0.000000] MTRR variable ranges enabled:
  [    0.000000]   0 base 0000000000 mask 7800000000 write-back
  [    0.000000]   1 base 0077FFF000 mask 7FFFFFF000 uncachable
  [    0.000000]   2 base 0078000000 mask 7FF8000000 uncachable
  [    0.000000]   3 base 0080000000 mask 7F80000000 uncachable
  [    0.000000]   4 disabled
  [    0.000000]   5 disabled
  [    0.000000]   6 disabled
  [    0.000000]   7 disabled
  [    0.000000]   8 disabled
  [    0.000000]   9 disabled
  [    0.000000] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WC  UC- WT  
  [    0.000000] original variable MTRRs
  [    0.000000] reg 0, base: 0GB, range: 32GB, type WB
  [    0.000000] reg 1, base: 1966076KB, range: 4KB, type UC
  [    0.000000] reg 2, base: 1920MB, range: 128MB, type UC
  [    0.000000] reg 3, base: 2GB, range: 2GB, type UC
  [    0.000000] total RAM covered: 30591M
  [    0.000000]  gran_size: 64K 	chunk_size: 64K 	num_reg: 10  	lose cover RAM: 29361148K
  [    0.000000]  gran_size: 64K 	chunk_size: 128K 	num_reg: 8  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 256K 	num_reg: 8  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 512K 	num_reg: 8  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 1M 	num_reg: 8  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 2M 	num_reg: 8  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 4M 	num_reg: 8  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 8M 	num_reg: 8  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 16M 	num_reg: 8  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 32M 	num_reg: 8  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 64M 	num_reg: 8  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 128M 	num_reg: 8  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 256M 	num_reg: 6  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 512M 	num_reg: 6  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 1G 	num_reg: 6  	lose cover RAM: 60K
  [    0.000000]  gran_size: 64K 	chunk_size: 2G 	num_reg: 6  	lose cover RAM: 60K
  [    0.000000]  gran_size: 128K 	chunk_size: 128K 	num_reg: 10  	lose cover RAM: 29361148K
  [    0.000000]  gran_size: 128K 	chunk_size: 256K 	num_reg: 8  	lose cover RAM: 124K
  [    0.000000]  gran_size: 128K 	chunk_size: 512K 	num_reg: 8  	lose cover RAM: 124K
  [    0.000000]  gran_size: 128K 	chunk_size: 1M 	num_reg: 8  	lose cover RAM: 124K
  [    0.000000]  gran_size: 128K 	chunk_size: 2M 	num_reg: 8  	lose cover RAM: 124K
  [    0.000000]  gran_size: 128K 	chunk_size: 4M 	num_reg: 8  	lose cover RAM: 124K
  [    0.000000]  gran_size: 128K 	chunk_size: 8M 	num_reg: 8  	lose cover RAM: 124K
  [    0.000000]  gran_size: 128K 	chunk_size: 16M 	num_reg: 8  	lose cover RAM: 124K
  [    0.000000]  gran_size: 128K 	chunk_size: 32M 	num_reg: 8  	lose cover RAM: 124K
  [    0.000000]  gran_size: 128K 	chunk_size: 64M 	num_reg: 8  	lose cover RAM: 124K
  [    0.000000]  gran_size: 128K 	chunk_size: 128M 	num_reg: 8  	lose cover RAM: 124K
  [    0.000000]  gran_size: 128K 	chunk_size: 256M 	num_reg: 6  	lose cover RAM: 124K
  [    0.000000]  gran_size: 128K 	chunk_size: 512M 	num_reg: 6  	lose cover RAM: 124K
  [    0.000000]  gran_size: 128K 	chunk_size: 1G 	num_reg: 6  	lose cover RAM: 124K
  [    0.000000]  gran_size: 128K 	chunk_size: 2G 	num_reg: 6  	lose cover RAM: 124K
  [    0.000000]  gran_size: 256K 	chunk_size: 256K 	num_reg: 10  	lose cover RAM: 29361148K
  [    0.000000]  gran_size: 256K 	chunk_size: 512K 	num_reg: 8  	lose cover RAM: 252K
  [    0.000000]  gran_size: 256K 	chunk_size: 1M 	num_reg: 8  	lose cover RAM: 252K
  [    0.000000]  gran_size: 256K 	chunk_size: 2M 	num_reg: 8  	lose cover RAM: 252K
  [    0.000000]  gran_size: 256K 	chunk_size: 4M 	num_reg: 8  	lose cover RAM: 252K
  [    0.000000]  gran_size: 256K 	chunk_size: 8M 	num_reg: 8  	lose cover RAM: 252K
  [    0.000000]  gran_size: 256K 	chunk_size: 16M 	num_reg: 8  	lose cover RAM: 252K
  [    0.000000]  gran_size: 256K 	chunk_size: 32M 	num_reg: 8  	lose cover RAM: 252K
  [    0.000000]  gran_size: 256K 	chunk_size: 64M 	num_reg: 8  	lose cover RAM: 252K
  [    0.000000]  gran_size: 256K 	chunk_size: 128M 	num_reg: 8  	lose cover RAM: 252K
  [    0.000000]  gran_size: 256K 	chunk_size: 256M 	num_reg: 6  	lose cover RAM: 252K
  [    0.000000]  gran_size: 256K 	chunk_size: 512M 	num_reg: 6  	lose cover RAM: 252K
  [    0.000000]  gran_size: 256K 	chunk_size: 1G 	num_reg: 6  	lose cover RAM: 252K
  [    0.000000]  gran_size: 256K 	chunk_size: 2G 	num_reg: 6  	lose cover RAM: 252K
  [    0.000000]  gran_size: 512K 	chunk_size: 512K 	num_reg: 10  	lose cover RAM: 29361148K
  [    0.000000]  gran_size: 512K 	chunk_size: 1M 	num_reg: 8  	lose cover RAM: 508K
  [    0.000000]  gran_size: 512K 	chunk_size: 2M 	num_reg: 8  	lose cover RAM: 508K
  [    0.000000]  gran_size: 512K 	chunk_size: 4M 	num_reg: 8  	lose cover RAM: 508K
  [    0.000000]  gran_size: 512K 	chunk_size: 8M 	num_reg: 8  	lose cover RAM: 508K
  [    0.000000]  gran_size: 512K 	chunk_size: 16M 	num_reg: 8  	lose cover RAM: 508K
  [    0.000000]  gran_size: 512K 	chunk_size: 32M 	num_reg: 8  	lose cover RAM: 508K
  [    0.000000]  gran_size: 512K 	chunk_size: 64M 	num_reg: 8  	lose cover RAM: 508K
  [    0.000000]  gran_size: 512K 	chunk_size: 128M 	num_reg: 8  	lose cover RAM: 508K
  [    0.000000]  gran_size: 512K 	chunk_size: 256M 	num_reg: 6  	lose cover RAM: 508K
  [    0.000000]  gran_size: 512K 	chunk_size: 512M 	num_reg: 6  	lose cover RAM: 508K
  [    0.000000]  gran_size: 512K 	chunk_size: 1G 	num_reg: 6  	lose cover RAM: 508K
  [    0.000000]  gran_size: 512K 	chunk_size: 2G 	num_reg: 6  	lose cover RAM: 508K
  [    0.000000]  gran_size: 1M 	chunk_size: 1M 	num_reg: 10  	lose cover RAM: 29361148K
  [    0.000000]  gran_size: 1M 	chunk_size: 2M 	num_reg: 8  	lose cover RAM: 1020K
  [    0.000000]  gran_size: 1M 	chunk_size: 4M 	num_reg: 8  	lose cover RAM: 1020K
  [    0.000000]  gran_size: 1M 	chunk_size: 8M 	num_reg: 8  	lose cover RAM: 1020K
  [    0.000000]  gran_size: 1M 	chunk_size: 16M 	num_reg: 8  	lose cover RAM: 1020K
  [    0.000000]  gran_size: 1M 	chunk_size: 32M 	num_reg: 8  	lose cover RAM: 1020K
  [    0.000000]  gran_size: 1M 	chunk_size: 64M 	num_reg: 8  	lose cover RAM: 1020K
  [    0.000000]  gran_size: 1M 	chunk_size: 128M 	num_reg: 8  	lose cover RAM: 1020K
  [    0.000000]  gran_size: 1M 	chunk_size: 256M 	num_reg: 6  	lose cover RAM: 1020K
  [    0.000000]  gran_size: 1M 	chunk_size: 512M 	num_reg: 6  	lose cover RAM: 1020K
  [    0.000000]  gran_size: 1M 	chunk_size: 1G 	num_reg: 6  	lose cover RAM: 1020K
  [    0.000000]  gran_size: 1M 	chunk_size: 2G 	num_reg: 6  	lose cover RAM: 1020K
  [    0.000000]  gran_size: 2M 	chunk_size: 2M 	num_reg: 10  	lose cover RAM: 25167868K
  [    0.000000]  gran_size: 2M 	chunk_size: 4M 	num_reg: 8  	lose cover RAM: 2044K
  [    0.000000]  gran_size: 2M 	chunk_size: 8M 	num_reg: 8  	lose cover RAM: 2044K
  [    0.000000]  gran_size: 2M 	chunk_size: 16M 	num_reg: 8  	lose cover RAM: 2044K
  [    0.000000]  gran_size: 2M 	chunk_size: 32M 	num_reg: 8  	lose cover RAM: 2044K
  [    0.000000]  gran_size: 2M 	chunk_size: 64M 	num_reg: 8  	lose cover RAM: 2044K
  [    0.000000]  gran_size: 2M 	chunk_size: 128M 	num_reg: 8  	lose cover RAM: 2044K
  [    0.000000]  gran_size: 2M 	chunk_size: 256M 	num_reg: 6  	lose cover RAM: 2044K
  [    0.000000]  gran_size: 2M 	chunk_size: 512M 	num_reg: 6  	lose cover RAM: 2044K
  [    0.000000]  gran_size: 2M 	chunk_size: 1G 	num_reg: 6  	lose cover RAM: 2044K
  [    0.000000]  gran_size: 2M 	chunk_size: 2G 	num_reg: 6  	lose cover RAM: 2044K
  [    0.000000]  gran_size: 4M 	chunk_size: 4M 	num_reg: 10  	lose cover RAM: 16781308K
  [    0.000000]  gran_size: 4M 	chunk_size: 8M 	num_reg: 8  	lose cover RAM: 4092K
  [    0.000000]  gran_size: 4M 	chunk_size: 16M 	num_reg: 8  	lose cover RAM: 4092K
  [    0.000000]  gran_size: 4M 	chunk_size: 32M 	num_reg: 8  	lose cover RAM: 4092K
  [    0.000000]  gran_size: 4M 	chunk_size: 64M 	num_reg: 8  	lose cover RAM: 4092K
  [    0.000000]  gran_size: 4M 	chunk_size: 128M 	num_reg: 8  	lose cover RAM: 4092K
  [    0.000000]  gran_size: 4M 	chunk_size: 256M 	num_reg: 6  	lose cover RAM: 4092K
  [    0.000000]  gran_size: 4M 	chunk_size: 512M 	num_reg: 6  	lose cover RAM: 4092K
  [    0.000000]  gran_size: 4M 	chunk_size: 1G 	num_reg: 6  	lose cover RAM: 4092K
  [    0.000000]  gran_size: 4M 	chunk_size: 2G 	num_reg: 6  	lose cover RAM: 4092K
  [    0.000000]  gran_size: 8M 	chunk_size: 8M 	num_reg: 10  	lose cover RAM: 8188K
  [    0.000000]  gran_size: 8M 	chunk_size: 16M 	num_reg: 8  	lose cover RAM: 8188K
  [    0.000000]  gran_size: 8M 	chunk_size: 32M 	num_reg: 8  	lose cover RAM: 8188K
  [    0.000000]  gran_size: 8M 	chunk_size: 64M 	num_reg: 8  	lose cover RAM: 8188K
  [    0.000000]  gran_size: 8M 	chunk_size: 128M 	num_reg: 8  	lose cover RAM: 8188K
  [    0.000000]  gran_size: 8M 	chunk_size: 256M 	num_reg: 6  	lose cover RAM: 8188K
  [    0.000000]  gran_size: 8M 	chunk_size: 512M 	num_reg: 6  	lose cover RAM: 8188K
  [    0.000000]  gran_size: 8M 	chunk_size: 1G 	num_reg: 6  	lose cover RAM: 8188K
  [    0.000000]  gran_size: 8M 	chunk_size: 2G 	num_reg: 6  	lose cover RAM: 8188K
  [    0.000000]  gran_size: 16M 	chunk_size: 16M 	num_reg: 9  	lose cover RAM: 16380K
  [    0.000000]  gran_size: 16M 	chunk_size: 32M 	num_reg: 8  	lose cover RAM: 16380K
  [    0.000000]  gran_size: 16M 	chunk_size: 64M 	num_reg: 8  	lose cover RAM: 16380K
  [    0.000000]  gran_size: 16M 	chunk_size: 128M 	num_reg: 8  	lose cover RAM: 16380K
  [    0.000000]  gran_size: 16M 	chunk_size: 256M 	num_reg: 6  	lose cover RAM: 16380K
  [    0.000000]  gran_size: 16M 	chunk_size: 512M 	num_reg: 6  	lose cover RAM: 16380K
  [    0.000000]  gran_size: 16M 	chunk_size: 1G 	num_reg: 6  	lose cover RAM: 16380K
  [    0.000000]  gran_size: 16M 	chunk_size: 2G 	num_reg: 6  	lose cover RAM: 16380K
  [    0.000000]  gran_size: 32M 	chunk_size: 32M 	num_reg: 8  	lose cover RAM: 32764K
  [    0.000000]  gran_size: 32M 	chunk_size: 64M 	num_reg: 8  	lose cover RAM: 32764K
  [    0.000000]  gran_size: 32M 	chunk_size: 128M 	num_reg: 8  	lose cover RAM: 32764K
  [    0.000000]  gran_size: 32M 	chunk_size: 256M 	num_reg: 6  	lose cover RAM: 32764K
  [    0.000000]  gran_size: 32M 	chunk_size: 512M 	num_reg: 6  	lose cover RAM: 32764K
  [    0.000000]  gran_size: 32M 	chunk_size: 1G 	num_reg: 6  	lose cover RAM: 32764K
  [    0.000000]  gran_size: 32M 	chunk_size: 2G 	num_reg: 6  	lose cover RAM: 32764K
  [    0.000000]  gran_size: 64M 	chunk_size: 64M 	num_reg: 7  	lose cover RAM: 65532K
  [    0.000000]  gran_size: 64M 	chunk_size: 128M 	num_reg: 8  	lose cover RAM: 65532K
  [    0.000000]  gran_size: 64M 	chunk_size: 256M 	num_reg: 6  	lose cover RAM: 65532K
  [    0.000000]  gran_size: 64M 	chunk_size: 512M 	num_reg: 6  	lose cover RAM: 65532K
  [    0.000000]  gran_size: 64M 	chunk_size: 1G 	num_reg: 6  	lose cover RAM: 65532K
  [    0.000000]  gran_size: 64M 	chunk_size: 2G 	num_reg: 6  	lose cover RAM: 65532K
  [    0.000000]  gran_size: 128M 	chunk_size: 128M 	num_reg: 6  	lose cover RAM: 131068K
  [    0.000000]  gran_size: 128M 	chunk_size: 256M 	num_reg: 6  	lose cover RAM: 131068K
  [    0.000000]  gran_size: 128M 	chunk_size: 512M 	num_reg: 5  	lose cover RAM: 131068K
  [    0.000000]  gran_size: 128M 	chunk_size: 1G 	num_reg: 5  	lose cover RAM: 131068K
  [    0.000000]  gran_size: 128M 	chunk_size: 2G 	num_reg: 5  	lose cover RAM: 131068K
  [    0.000000]  gran_size: 256M 	chunk_size: 256M 	num_reg: 6  	lose cover RAM: 131068K
  [    0.000000]  gran_size: 256M 	chunk_size: 512M 	num_reg: 5  	lose cover RAM: 131068K
  [    0.000000]  gran_size: 256M 	chunk_size: 1G 	num_reg: 5  	lose cover RAM: 131068K
  [    0.000000]  gran_size: 256M 	chunk_size: 2G 	num_reg: 5  	lose cover RAM: 131068K
  [    0.000000]  gran_size: 512M 	chunk_size: 512M 	num_reg: 5  	lose cover RAM: 393212K
  [    0.000000]  gran_size: 512M 	chunk_size: 1G 	num_reg: 5  	lose cover RAM: 393212K
  [    0.000000]  gran_size: 512M 	chunk_size: 2G 	num_reg: 5  	lose cover RAM: 393212K
  [    0.000000]  gran_size: 1G 	chunk_size: 1G 	num_reg: 4  	lose cover RAM: 917500K
  [    0.000000]  gran_size: 1G 	chunk_size: 2G 	num_reg: 4  	lose cover RAM: 917500K
  [    0.000000]  gran_size: 2G 	chunk_size: 2G 	num_reg: 3  	lose cover RAM: 1966076K
  [    0.000000] mtrr_cleanup: can not find optimal value
  [    0.000000] please specify mtrr_gran_size/mtrr_chunk_size

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-6-generic 4.4.0-6.21
  ProcVersionSignature: Ubuntu 4.4.0-6.21-generic 4.4.1
  Uname: Linux 4.4.0-6-generic x86_64
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  aljosa     1755 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Feb 20 19:23:55 2016
  HibernationDevice: RESUME=UUID=e59cf56b-b622-45b7-88c3-c88a1c978887
  InstallationDate: Installed on 2016-02-20 (0 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160218)
  MachineType: LENOVO 80Q0
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-6-generic.efi.signed root=UUID=64e94552-5d3c-4123-b492-a473889ee0f1 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-6-generic N/A
   linux-backports-modules-4.4.0-6-generic  N/A
   linux-firmware                           1.156
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/12/2015
  dmi.bios.vendor: LENOVO
  dmi.bios.version: CDCN26WW
  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:bvrCDCN26WW:bd10/12/2015: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

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References