> On 3 Nov 2017, at 10:11 PM, George Mathioudakis <email address hidden> wrote:
> 
> I modified tlp for max performance but tlp starts only when desktop boots.
> So, kernel boot is slow.

Sounds like not the SATA link power management? So which value exactly?

> 
> 2017-11-02 8:57 GMT+02:00 Kai-Heng Feng <email address hidden>:
> 
>> Did you change the SATA link power management or other settings?
>> 
>> Can you attach the diff of your TLP setting?
>> 
>> --
>> You received this bug notification because you are subscribed to the bug
>> report.
>> https://bugs.launchpad.net/bugs/1726159
>> 
>> Title:
>>  PCIe BUS Error causing really slow laptop performance
>> 
>> Status in linux package in Ubuntu:
>>  Confirmed
>> 
>> Bug description:
>>  I recently bought the following laptop:
>>  Asus VivoBook X542UQ-DM148T - 15.6" (i7-7500U/8GB/256GB/GT 940MX 2GB)
>> 
>>  It came pre-installed with Win10 and I did a fresh install of Ubuntu
>>  16.04 LTS. The screen was flickering for some reason and installing
>>  Ubuntu 17.04 fixed the issue.
>> 
>>  The real problem is that when I'm booting the laptop, the following
>>  error is being shown on my screen:
>> 
>>  [   12.866073] pcieport 0000:00:1c.5: can't find device of ID00e5
>>  [   12.898481] pcieport 0000:00:1c.5: AER: Multiple Corrected error
>> received: id=00e5
>>  [   12.898488] pcieport 0000:00:1c.5: PCIe Bus Error:
>> severity=Corrected, type=Physical Layer, id=00e5(Receiver ID)
>>  [   12.898491] pcieport 0000:00:1c.5:   device [8086:9d15] error
>> status/mask=00002041/00002000
>>  [   12.898492] pcieport 0000:00:1c.5:    [ 0] Receiver Error
>> (First)
>>  [   12.898493] pcieport 0000:00:1c.5:    [ 6] Bad TLP
>> 
>>  I know that this error can be hid with one of the following kernel boot
>> arguments:
>>  pci=nomsi / pci=noaer / pcie_aspm=off / pci=nommconf.
>> 
>>  The weird thing is that the above output is only being shown when the
>>  laptop is on AC Power (charging). When the laptop is not connected to
>>  AC (battery-mode), it has performance issues (slow boot and slow
>>  application launching). I was trying all day long to fix the problem.
>>  I removed everything that had to do with power-saving, reinstalled,
>>  re-tweaked for performance, tried different kernels but had no luck.
>>  While diagnosing, I had the idea to benchmark the "M2 SATA-3 SSD" that
>>  my laptop had. The results are:
>> 
>>  * On AC Power: 522MB/s (READ) | 416MB/s (WRITE)
>>  * On Battery Power: 32MB/s (READ) | 31MB/s (WRITE)
>> 
>>  This explains everyting. That's why I'm having a slow boot and slow
>>  application launching!
>> 
>>  Commands "lspci" and "dmesg" say that the error comes from the following
>> device:
>>  00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root
>> Port #6 (rev f1)
>> 
>>  I will attach lspci and dmesg output on a tar.gz file.
>> 
>>  ------------------------------------------------------------
>> --------------
>>  UPDATE: When the laptop is fully charged and still on AC (but not
>> charging since it is 100% charged), the errors appear again but the SSD
>> speed is normal (~500 Read/Write).
>>  ------------------------------------------------------------
>> --------------
>>  UPDATE: I installed 'tlp' Advanced Power Management package and when
>> using the command 'tlp ac', the SSD speed gets back to normal! The option
>> does not persist across reboots.
>>  ------------------------------------------------------------
>> --------------
>> 
>>  ProblemType: Bug
>>  DistroRelease: Ubuntu 17.04
>>  Package: linux-image-4.10.0-37-generic 4.10.0-37.41
>>  ProcVersionSignature: Ubuntu 4.10.0-37.41-generic 4.10.17
>>  Uname: Linux 4.10.0-37-generic x86_64
>>  ApportVersion: 2.20.4-0ubuntu4.5
>>  Architecture: amd64
>>  AudioDevicesInUse:
>>   USER        PID ACCESS COMMAND
>>   /dev/snd/controlC0:  georgem    2557 F.... pulseaudio
>>  CurrentDesktop: Unity:Unity7
>>  Date: Sun Oct 22 23:17:57 2017
>>  InstallationDate: Installed on 2017-10-20 (2 days ago)
>>  InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
>>  Lsusb:
>>   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
>>   Bus 001 Device 004: ID 13d3:3496 IMC Networks
>>   Bus 001 Device 003: ID 13d3:5a01 IMC Networks
>>   Bus 001 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
>>   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>>  MachineType: ASUSTeK COMPUTER INC. X542UQ
>>  ProcFB: 0 inteldrmfb
>>  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic.efi.signed
>> root=UUID=38d32efc-d0cb-4a82-9e6c-e6a3bd62e51d ro quiet splash
>> vt.handoff=7
>>  RelatedPackageVersions:
>>   linux-restricted-modules-4.10.0-37-generic N/A
>>   linux-backports-modules-4.10.0-37-generic  N/A
>>   linux-firmware                             1.164.1
>>  SourcePackage: linux
>>  UpgradeStatus: No upgrade log present (probably fresh install)
>>  dmi.bios.date: 05/18/2017
>>  dmi.bios.vendor: American Megatrends Inc.
>>  dmi.bios.version: X542UQ.202
>>  dmi.board.asset.tag: ATN12345678901234567
>>  dmi.board.name: X542UQ
>>  dmi.board.vendor: ASUSTeK COMPUTER INC.
>>  dmi.board.version: 1.0
>>  dmi.chassis.asset.tag: No Asset Tag
>>  dmi.chassis.type: 10
>>  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
>>  dmi.chassis.version: 1.0
>>  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX542UQ.202:bd05/18/2017:
>> svnASUSTeKCOMPUTERINC.:pnX542UQ:pvr1.0:rvnASUSTeKCOMPUTERINC.:
>> rnX542UQ:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
>>  dmi.product.name: X542UQ
>>  dmi.product.version: 1.0
>>  dmi.sys.vendor: ASUSTeK COMPUTER INC.
>> 
>> To manage notifications about this bug go to:
>> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/
>> 1726159/+subscriptions
>> 
> 
> 
> ** Attachment added: "tlp.txt"
>   https://bugs.launchpad.net/bugs/1726159/+attachment/5003025/+files/tlp.txt
> 
> -- 
> You received this bug notification because you are subscribed to linux
> in Ubuntu.
> https://bugs.launchpad.net/bugs/1726159
> 
> Title:
>  PCIe BUS Error causing really slow laptop performance
> 
> Status in linux package in Ubuntu:
>  Confirmed
> 
> Bug description:
>  I recently bought the following laptop:
>  Asus VivoBook X542UQ-DM148T - 15.6" (i7-7500U/8GB/256GB/GT 940MX 2GB)
> 
>  It came pre-installed with Win10 and I did a fresh install of Ubuntu
>  16.04 LTS. The screen was flickering for some reason and installing
>  Ubuntu 17.04 fixed the issue.
> 
>  The real problem is that when I'm booting the laptop, the following
>  error is being shown on my screen:
> 
>  [   12.866073] pcieport 0000:00:1c.5: can't find device of ID00e5
>  [   12.898481] pcieport 0000:00:1c.5: AER: Multiple Corrected error received: id=00e5
>  [   12.898488] pcieport 0000:00:1c.5: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=00e5(Receiver ID)
>  [   12.898491] pcieport 0000:00:1c.5:   device [8086:9d15] error status/mask=00002041/00002000
>  [   12.898492] pcieport 0000:00:1c.5:    [ 0] Receiver Error         (First)
>  [   12.898493] pcieport 0000:00:1c.5:    [ 6] Bad TLP
> 
>  I know that this error can be hid with one of the following kernel boot arguments:
>  pci=nomsi / pci=noaer / pcie_aspm=off / pci=nommconf.
> 
>  The weird thing is that the above output is only being shown when the
>  laptop is on AC Power (charging). When the laptop is not connected to
>  AC (battery-mode), it has performance issues (slow boot and slow
>  application launching). I was trying all day long to fix the problem.
>  I removed everything that had to do with power-saving, reinstalled,
>  re-tweaked for performance, tried different kernels but had no luck.
>  While diagnosing, I had the idea to benchmark the "M2 SATA-3 SSD" that
>  my laptop had. The results are:
> 
>  * On AC Power: 522MB/s (READ) | 416MB/s (WRITE)
>  * On Battery Power: 32MB/s (READ) | 31MB/s (WRITE)
> 
>  This explains everyting. That's why I'm having a slow boot and slow
>  application launching!
> 
>  Commands "lspci" and "dmesg" say that the error comes from the following device:
>  00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1)
> 
>  I will attach lspci and dmesg output on a tar.gz file.
> 
>  --------------------------------------------------------------------------
>  UPDATE: When the laptop is fully charged and still on AC (but not charging since it is 100% charged), the errors appear again but the SSD speed is normal (~500 Read/Write).
>  --------------------------------------------------------------------------
>  UPDATE: I installed 'tlp' Advanced Power Management package and when using the command 'tlp ac', the SSD speed gets back to normal! The option does not persist across reboots.
>  --------------------------------------------------------------------------
> 
>  ProblemType: Bug
>  DistroRelease: Ubuntu 17.04
>  Package: linux-image-4.10.0-37-generic 4.10.0-37.41
>  ProcVersionSignature: Ubuntu 4.10.0-37.41-generic 4.10.17
>  Uname: Linux 4.10.0-37-generic x86_64
>  ApportVersion: 2.20.4-0ubuntu4.5
>  Architecture: amd64
>  AudioDevicesInUse:
>   USER        PID ACCESS COMMAND
>   /dev/snd/controlC0:  georgem    2557 F.... pulseaudio
>  CurrentDesktop: Unity:Unity7
>  Date: Sun Oct 22 23:17:57 2017
>  InstallationDate: Installed on 2017-10-20 (2 days ago)
>  InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
>  Lsusb:
>   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
>   Bus 001 Device 004: ID 13d3:3496 IMC Networks
>   Bus 001 Device 003: ID 13d3:5a01 IMC Networks
>   Bus 001 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
>   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>  MachineType: ASUSTeK COMPUTER INC. X542UQ
>  ProcFB: 0 inteldrmfb
>  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-37-generic.efi.signed root=UUID=38d32efc-d0cb-4a82-9e6c-e6a3bd62e51d ro quiet splash vt.handoff=7
>  RelatedPackageVersions:
>   linux-restricted-modules-4.10.0-37-generic N/A
>   linux-backports-modules-4.10.0-37-generic  N/A
>   linux-firmware                             1.164.1
>  SourcePackage: linux
>  UpgradeStatus: No upgrade log present (probably fresh install)
>  dmi.bios.date: 05/18/2017
>  dmi.bios.vendor: American Megatrends Inc.
>  dmi.bios.version: X542UQ.202
>  dmi.board.asset.tag: ATN12345678901234567
>  dmi.board.name: X542UQ
>  dmi.board.vendor: ASUSTeK COMPUTER INC.
>  dmi.board.version: 1.0
>  dmi.chassis.asset.tag: No Asset Tag
>  dmi.chassis.type: 10
>  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
>  dmi.chassis.version: 1.0
>  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX542UQ.202:bd05/18/2017:svnASUSTeKCOMPUTERINC.:pnX542UQ:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX542UQ:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
>  dmi.product.name: X542UQ
>  dmi.product.version: 1.0
>  dmi.sys.vendor: ASUSTeK COMPUTER INC.
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1726159/+subscriptions