I am still seeing this issues with 4.13.0-16. Ultimately this problem
(at least in my case) seems to be a PCI express power management issue
(see https://www.spinics.net/lists/linux-pci/msg64778.html).
The following workarounds solve the problem on my system:
a) remove the PCI express card from t
that's strange - could you please post the output of lspci -vt
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https://bugs.launchpad.net/bugs/1716747
Title:
linux 4.12 - high system load and mouse delays - pipe A vblan
Thank you - now everything works perfectly well :)
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https://bugs.launchpad.net/bugs/1716747
Title:
linux 4.12 - high system load and mouse delays - pipe A vblank wait
tim
Thank you for providing the test kernel. I am afraid this does not
resolve the issue.
As mentioned in the upstream bug report, it turned out that the problem
is triggered in the xhci-pci code and caused by an ExpressCard Renesas
uPD720202 USB 3.0 controller. I was able to narrowed the issue down t
I have added a bug report to
https://bugs.freedesktop.org/show_bug.cgi?id=102711
** Bug watch added: freedesktop.org Bugzilla #102711
https://bugs.freedesktop.org/show_bug.cgi?id=102711
** Tags added: kernel-bug-reported-upstream
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Done - the last working kernel version is 4.12.7:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.12.7/
4.12.8 is the first version that causes the reported issues.
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https:/
The bug is still present in the latest mainline kernel (v4.13.1).
Sep 13 01:39:09 trinity kernel: [ 541.351648] pipe A vblank wait timed out
Sep 13 01:39:09 trinity kernel: [ 541.351728] [ cut here
]
Sep 13 01:39:09 trinity kernel: [ 541.351787] WARNING: CPU: 0 PID: 18
Public bug reported:
This issue has been observed on a Lenovo X220i laptop:
1. Booting the laptop with artful's 4.12 kernel results in a very sluggish
system performance (mouse pointer delays) and a high system load.
2. /var/log/kern.log indicates a problem with the display driver (see below)
3.
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