So, although `pci=nommconf` gets rid of the error flood, it does apparently make some collateral damage. After a few days under this kernel parameter, the person who uses the laptop on a daily basis reported a decrease in responsiveness and stability, with occasional stutters if I understood correctly. Then I was called to help with a black screen. And indeed, there was nothing to be done but a hard power- off. I couldn't even access a tty. At that point I decided to stop the experiment and reverted to `pci=noaer`; the system then returned to its normal behavior.
I am now trying `pcie_aspm=off`. That apparently gets rid of the errors as well. Hopefully the trade-off is limited to less efficient power saving, which doesn't matter as the laptop is nearly always connected to a power source. Besides, if the error messages were of any indication, ASPM did not work correctly anyway; so, potentially power management won't get worse (what's there to lose by disabling a malfunctioning feature?). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1521173 Title: AER: Corrected error received: id=00e0 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1521173/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
