I attached the dump file "dump.txt". 2017-10-26 18:12 GMT+03:00 Kai-Heng Feng <kai.heng.f...@canonical.com>:
> Please install acpidump, then > > $ sudo acpidump > dump > > and attach the dump file. > > -- > 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). > ------------------------------------------------------------ > -------------- > > 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: "dump.txt" https://bugs.launchpad.net/bugs/1726159/+attachment/4996927/+files/dump.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1726159 Title: PCIe BUS Error causing really slow laptop performance To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1726159/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
