Public bug reported:
Hello!
After installing Xenial [0] I experience the following: when I do I/O through
USB (to/from simple pendrives, or an
external HDD I have), the desktop becomes unusable, because it goes very very
unresponsive.
With unresponsive I mean:
- all windows go greyed out (like when it's failing to answer in time,
as if the process inside that window locked up)
- firefox and thunderbird start to pop up the typical "the script is taking too
much to finis, want to kill
it/continue/etc" (in whatever tab I'll be, so it's not the JS scripts (for
once!)
- the mouse pointer goes jumpy, not really following my hand movement
- I see in thee indicator-multiload widget that CPU time is "wasted" in
"waiting i/o"; which I confirmed looking at "top".
So, in short: even while understanding that CPU would wait a little for i/o and
that the system will be under a little
load by writing a pen-drive, I find current situation beyond a normal
experience.
How can I start to debug this? What I can try? Can I provide you more
info?
Thanks!
Regards,
[0] from scratch, in the computer where I always work; I previously had
Trusty here
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-21-generic 4.4.0-21.37
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: facundo 2338 F.... pulseaudio
/dev/snd/controlC3: facundo 2338 F.... pulseaudio
/dev/snd/controlC2: facundo 2338 F.... pulseaudio
/dev/snd/controlC0: facundo 2338 F.... pulseaudio
CurrentDesktop: Unity
Date: Fri May 13 16:13:12 2016
HibernationDevice: RESUME=UUID=5dabff2e-722b-4c99-8bf5-003643ad0d04
InstallationDate: Installed on 2016-04-01 (42 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323)
MachineType: Gigabyte Technology Co., Ltd. GA-970A-D3
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic
root=UUID=6ba5d9f5-e21f-4e58-800d-89ec0b7d1e9b ro quiet splash
RelatedPackageVersions:
linux-restricted-modules-4.4.0-21-generic N/A
linux-backports-modules-4.4.0-21-generic N/A
linux-firmware 1.157
RfKill:
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/13/2011
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F7
dmi.board.name: GA-970A-D3
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias:
dmi:bvnAwardSoftwareInternational,Inc.:bvrF7:bd10/13/2011:svnGigabyteTechnologyCo.,Ltd.:pnGA-970A-D3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-970A-D3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-970A-D3
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1581651
Title:
Xenial desktop unusable under simple I/O through USB
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