My xhci_hcd bluetooth dies on Ubuntu 19.10 after about 2 days. I can't figure
out at all why, so here's a workaround for novices like me to google.
The specific commands I use are
sudo su
echo -n ":00:14.0" | tee /sys/bus/pci/drivers/xhci_hcd/unbind
echo -n ":00:14.0" | tee /sys/bus/pci/d
Maybe related:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1413440.
When I use the workaround described in comment 29 in bug 1413440
(booting with GRUB options 'pci=nomsi iommu=soft') then XHCI doesn't
hang, and when I run the reset script described in this bug report, it
doesn't cause a
The workaround in comment #26 works for me on a Lenovo Yoga 720-15
running kernel 4.17.0-041700rc3-generic.
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https://bugs.launchpad.net/bugs/1413440
Title:
USB stops workin
Also maybe related as I am running TLP: https://www.spinics.net/lists
/linux-usb/msg167941.html
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https://bugs.launchpad.net/bugs/1763594
Title:
xhci hangs; reset results in
So I installed the latest upstream kernel (4.17-rc1) and the bug
described above still occurs. It's frustrating because it means my
bluetooth mouse stops working after about 5 minutes, and I can't get it
to work again without rebooting. Code copied and pasted below
[ 721.603218] xhci_hcd :00
This is above my competence level in Linux, but I can confirm this
problem in:
[code]
$ uname -a
Linux 4.15.0-15-generic #16-Ubuntu SMP Wed Apr 4 13:58:14 UTC 2018 x86_64
x86_64 x86_64 GNU/Linux
[/code]
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Just to add: I upgraded to 16.04 and I can no longer resume from suspend
- everything is frozen. I tried removing the acpi_osi=\"!Windows 2013\"
boot parameter and this causes ubuntu suspend, immediately resume, then
freeze.
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Not sure if I understand how to test the results - don't I need the
custom kernel that Maxim Kizub compiled? I can confirm that his
workaround is effective in v4.2.0-040200-generic #201508301530.
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It appears that a very nice person did a kernel bisect and found the bug
I have: https://bugs.launchpad.net/ubuntu/+source/linux-lts-
utopic/+bug/1483467
His workaround also works for me.
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The temp fix by Maxim is also working for me - hooray! Thanks so much
Maxim!
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https://bugs.launchpad.net/bugs/1416557
Title:
[Acer Aspire V5-573G] suspend/resume failure
S
Public bug reported:
I have an Acer V5-573G which fails to resume from suspend for all
kernels past 3.14.51 (I've tested 4.2.0-040200 and it still doesn't
resume). When attempting to resume, the hard drive spins up, the
keyboard backlight turns on, the suspend light goes from orange to blue,
but t
So I've comprehensively failed to git bisect what is apparently neither
a mainline kernel version (mainline only has 3.14, not 3.14.51, and I
can't figure out how to get around the lack of a debian.master/changelog
file) nor available in the utopic repository (which has 3.13 and 3.16
kernels, but n
I've done a bit more narrowing down on this and found that the problem
occurs between kernel 3.14.51 and kernel 3.15.0-RC1. I know this isn't
kernel bisecting (haven't done this before so will give it a go but not
sure whether I'll be successful).
Oddly, in Ubuntu 14.10, I can suspend/resume fine
Tried this kernel: http://kernel.ubuntu.com/~kernel-
ppa/mainline/v3.14-trusty/ and suspend works fine. However, in case it's
relevant, I use bbswitch and installing the 3.14 kernel threw an error
relating to this - possibly because I don't have the source package
installed?
** Tags added: kernel-
Public bug reported:
I'm running packages from ubuntu and xubuntu. When I resume from
suspend, I have to type my login password twice (in two separate lock
screens) to get back to my previous session. This time I accidentally
alt-tabbed while on the second (new ubuntu) lock screen, and couldn't
ge
For me, 11.10 doesn't boot to x, but to a terminal. Using the 'startx'
command brings up a normal ubuntu session. The backlight works in this
version, but the brightness buttons don't and I couldn't immediately see
where to change brightness so couldn't test if the screen just had one
brightness se
The backlight works under Lucid!
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Title:
8086:0a16 [Acer Aspire V5-573G] Black screen on boot due to low
brightness setting
Statu
Same problem under 12.04.3, run under LiveUSB
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Title:
8086:0a16 [Acer Aspire V5-573G] Black screen on boot due to low
brightness s
My computer is new and I had some difficulty installing 13.04 so went
straight to 13.10 alpha - afraid I don't know if the bug occurred
beforehand.
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Same problem with rc6-saucy kernel downloaded from the link in post #7
above.
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Title:
8086:0a16 [Acer Aspire V5-573G] Black screen o
I've now tested the rc5-saucy kernel, and the problem is still there.
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Title:
8086:0a16 [Acer Aspire V5-573G] Black screen on boot d
I've tested 3.12.0-999-generic using the instructions at the link and
the bug is still there, so added the exists-upstream tag.
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Title
** Tags added: kernel-bug-exists-upstream
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Title:
[Acer Aspire V5-573G] Black screen on boot due to low brightness
setting
Status
Public bug reported:
On boot, following the bios screen and grub screen to choose ubuntu, the
screen goes completely black, but the fn-arrow keys can be used to turn
the backlight up. This is on Asus Aspire V5 573G. I believe this is a
duplicate of bug #1224415 but I was told explicitly to file a
I have the same machine and the same bug, and just updated my bios to
2.20. The black screen problem still occurs. Here is my output from sudo
dmidecode -s bios-version && sudo dmidecode -s bios-release-date:
V2.20
08/29/2013
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