On checking the syslog(cat /var/log/syslog) I got following output below. Note that it keeps cumulating and filesize of syslog grows in ~GBs.
Jun 8 05:06:01 hp kernel: [ 1625.694970] pcieport 0000:00:1c.5: [ 0] Receiver Error Jun 8 05:06:01 hp kernel: [ 1625.694983] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.695634] pcieport 0000:00:1c.5: can't find device of ID00e5 Jun 8 05:06:01 hp kernel: [ 1625.695651] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.695677] pcieport 0000:00:1c.5: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=00e5(Receiver ID) Jun 8 05:06:01 hp kernel: [ 1625.695685] pcieport 0000:00:1c.5: device [8086:9d15] error status/mask=00000001/00002000 Jun 8 05:06:01 hp kernel: [ 1625.695692] pcieport 0000:00:1c.5: [ 0] Receiver Error Jun 8 05:06:01 hp kernel: [ 1625.695705] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.696363] pcieport 0000:00:1c.5: can't find device of ID00e5 Jun 8 05:06:01 hp kernel: [ 1625.697518] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.697538] pcieport 0000:00:1c.5: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=00e5(Receiver ID) Jun 8 05:06:01 hp kernel: [ 1625.697547] pcieport 0000:00:1c.5: device [8086:9d15] error status/mask=00000001/00002000 Jun 8 05:06:01 hp kernel: [ 1625.697555] pcieport 0000:00:1c.5: [ 0] Receiver Error Jun 8 05:06:01 hp kernel: [ 1625.795949] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.795971] pcieport 0000:00:1c.5: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=00e5(Receiver ID) Jun 8 05:06:01 hp kernel: [ 1625.795980] pcieport 0000:00:1c.5: device [8086:9d15] error status/mask=00000001/00002000 Jun 8 05:06:01 hp kernel: [ 1625.795987] pcieport 0000:00:1c.5: [ 0] Receiver Error Jun 8 05:06:01 hp kernel: [ 1625.795998] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.796647] pcieport 0000:00:1c.5: can't find device of ID00e5 Jun 8 05:06:01 hp kernel: [ 1625.796677] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.796690] pcieport 0000:00:1c.5: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=00e5(Receiver ID) Jun 8 05:06:01 hp kernel: [ 1625.796696] pcieport 0000:00:1c.5: device [8086:9d15] error status/mask=00000001/00002000 Jun 8 05:06:01 hp kernel: [ 1625.796702] pcieport 0000:00:1c.5: [ 0] Receiver Error Jun 8 05:06:01 hp kernel: [ 1625.796712] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.797365] pcieport 0000:00:1c.5: can't find device of ID00e5 Jun 8 05:06:01 hp kernel: [ 1625.797383] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.797395] pcieport 0000:00:1c.5: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=00e5(Receiver ID) Jun 8 05:06:01 hp kernel: [ 1625.797401] pcieport 0000:00:1c.5: device [8086:9d15] error status/mask=00000001/00002000 Jun 8 05:06:01 hp kernel: [ 1625.797405] pcieport 0000:00:1c.5: [ 0] Receiver Error Jun 8 05:06:01 hp kernel: [ 1625.898207] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.898234] pcieport 0000:00:1c.5: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=00e5(Receiver ID) Jun 8 05:06:01 hp kernel: [ 1625.898246] pcieport 0000:00:1c.5: device [8086:9d15] error status/mask=00000001/00002000 Jun 8 05:06:01 hp kernel: [ 1625.898256] pcieport 0000:00:1c.5: [ 0] Receiver Error Jun 8 05:06:01 hp kernel: [ 1625.898271] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.898927] pcieport 0000:00:1c.5: can't find device of ID00e5 Jun 8 05:06:01 hp kernel: [ 1625.898944] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.898968] pcieport 0000:00:1c.5: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=00e5(Receiver ID) Jun 8 05:06:01 hp kernel: [ 1625.898977] pcieport 0000:00:1c.5: device [8086:9d15] error status/mask=00000001/00002000 Jun 8 05:06:01 hp kernel: [ 1625.898983] pcieport 0000:00:1c.5: [ 0] Receiver Error Jun 8 05:06:01 hp kernel: [ 1625.898994] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.899645] pcieport 0000:00:1c.5: can't find device of ID00e5 Jun 8 05:06:01 hp kernel: [ 1625.899662] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.899696] pcieport 0000:00:1c.5: PCIe Bus Error: severity=Corrected, type=Physical Layer, id=00e5(Receiver ID) Jun 8 05:06:01 hp kernel: [ 1625.899705] pcieport 0000:00:1c.5: device [8086:9d15] error status/mask=00000001/00002000 Jun 8 05:06:01 hp kernel: [ 1625.899713] pcieport 0000:00:1c.5: [ 0] Receiver Error Jun 8 05:06:01 hp kernel: [ 1625.899726] pcieport 0000:00:1c.5: AER: Corrected error received: id=00e5 Jun 8 05:06:01 hp kernel: [ 1625.900375] pcieport 0000:00:1c.5: can't find device of ID00e5 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1588428 Title: PCI bus error on startup while booting into login screen (Kubuntu 16.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1588428/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs