Hello! > I didn't get any feedback about the suggested patch. If you talk about this one https://marc.info/?l=linux-usb&m=15252835690 2325&w=2 then unfortunately I missed it. Mathias, please confirm, is this patch I need to check on Dell 5855? 14/05/2018 в 16:27 +0300, Mathias Nyman: > On 11.05.2018 19:37, gert wrote: > > > > Since the upgrade to Linux 4.15 (and also in 4.16), I'm > > experiencing an issue where all my USB devices just die seemingly > > without any cause. Both my laptop's internal (attached) keyboard as > > well as my external keyboard die. > > > > Replugging the external keyboard unfortunately does not solve the > > problem. My touchpad, on the other hand, continues to work, though > > it may internally be connected via PS/2. > > > > After this happens, I have only been able to solve it by rebooting. > > > > In the logs, the following error can be found. > > > > xhci_hcd 0000:3d:00.0: xHCI host controller not responding, assume > > dead > > > > Previously, similar issues occurred to users that could be fixed by > > adding intel_iommu=false to the kernel parameters. This however > > seems to be a different problem, as it newly occurs in this > > specific kernel version and is not solved by the aforementioned > > solution. > > > > This was also posted at the Archlinux forums [1], where we managed > > to pin down the issue to being related to xHCI and autosuspend > > (power management). I'm using powertop's --auto-tune and disabling > > the "good" setting for all xHCI controllers again makes the issue > > disappear. Linux 4.14 and lower also do not expose this issue. > > > > Please also find attached the complete journalctl output of one > > boot from start to finish that exposed the issue, which may be > > helpful during debugging. [1] > > > > Hi > > I got a report about a very similar issue, thread can be found at: > https://marc.info/?l=linux-usb&m=152335174903017&w=2 > > I didn't get any feedback about the suggested patch. > If you can test it, either by just by compiling my for-usb-linus > branch: > > git://git.kernel.org/pub/scm/linux/kernel/git/mnyman/xhci.git for- > usb-linus > > or alternatively applying the attached patch I would appreciate it. > > If it doesn't help then we need to dig deeper into it, woith more > detailed logs. > > Thanks > Mathias > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
