shuffled keys in keyboard buffer

[Daniele Varrazzo]

Hello,

I've recently installed lubuntu 14.04 on a funnily underpowered netbook (Acer Aspire One, 512 Mb RAM, 8GB disk VERY slow, probably made out of cheddar).

Being the RAM limited and the disk amazingly slow, the PC often freezes for a few seconds during almost any operation. In previous Linux installations on the same machine I used to keep on typing, waiting for the result buffered keys to appear after the tantrum has passed. On this installation instead the keys appear... but shuffled, not in the order they were typed.

As an example I've just "op w aandt hee yeoennab pstgnditmde" (that was "opened a new tab and typed something").

What could be the component to blame? Thank you.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: lubuntu-desktop 0.55
ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
Uname: Linux 3.13.0-27-generic i686
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: i386
CurrentDesktop: LXDE
Date: Tue Jun 3 15:09:44 2014
InstallationDate: Installed on 2014-05-20 (13 days ago)
InstallationMedia: Lubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140416.2)
SourcePackage: lubuntu-meta
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[J.C. Blouin (lejcdublouin)]

I have the same problem as Daniele. I am also running Lubuntu on an underpowered Eee PC netbook.

[J.C. Blouin (lejcdublouin)]

I should add that I just tried to get the shuffled keybuffer at console (not terminal emulator) but couldn't replicate there. Maybe a LXDE problem?

[Sven (muffl0n)]

I also experience this bug. Could only reproduce in Chromium (36.0.1985.125 (Developer Build 283153)).

[Luigi Calligaris (luigicalligaris)]

Likely this is a problem upstream of Lubuntu.

I am running Kubuntu 14.04, updated as of 09/09/2014 (kernel: 3.13.0-35-generic) and also experiencing this problem at least both in Thunderbird and Chromium.

When the machine is under load and the GUI is lagging keystrokes are shuffled, missed or even transformed into others: it even happened to me that by keeping backspace pressed in the Thunderbird search bar I was getting random keystrokes being input into the latter searchbar.

Should I open a bug on kubuntu-meta or this bug can be reassigned to an upstream package?

[Daniele Varrazzo (daniele-varrazzo)]

Could it be an iBus problem? Just pointing my finger because iBus has given me all sort of problems on all the machine I've installed to 14.04 and I hate it deeply (#1365755, #1365752, #1284635). However I don't have the laptop of the bug description with me now, so I can check if iBus runs on Lubuntu too and if disabling changes anything. I'll have that laptop back towards the end of the month.

Recalling that I lost my composite key, and that there was no more friggin' uk keyboard to choose, that laptop definitely had ibus running. I just didn't know yet I had to blame it for these problems and didn't try disabling it.

I just hate iBus, thank you for putting such a broken package on LTS.

[ԜаӀtеr Ⅼарсһуnѕkі (wxl)]

iBus has been a problem for more than just Lubuntu. I wish that their
developers were more responsive. I tried to reach out to them several
times to no avail.

I think it's quite possible that iBus could be the problem. Quit iBus
and run for a while and see what happens. I admit I think you must
first have this problem in order to see the difference with iBus. My
suspicion is the combination of software asking more out of your
hardware than it's capable of handling.

On Tue, Sep 9, 2014 at 3:35 PM, Daniele Varrazzo
<email address hidden> wrote:
> Could it be an iBus problem? Just pointing my finger because iBus has
> given me all sort of problems on all the machine I've installed to 14.04
> and I hate it deeply (#1365755, #1365752, #1284635). However I don't
> have the laptop of the bug description with me now, so I can check if
> iBus runs on Lubuntu too and if disabling changes anything. I'll have
> that laptop back towards the end of the month.
>
> Recalling that I lost my composite key, and that there was no more
> friggin' uk keyboard to choose, that laptop definitely had ibus running.
> I just didn't know yet I had to blame it for these problems and didn't
> try disabling it.
>
> I just hate iBus, thank you for putting such a broken package on LTS.
>
> --
> You received this bug notification because you are a member of Lubuntu
> Packages Team, which is subscribed to lubuntu-meta in Ubuntu.
> https://bugs.launchpad.net/bugs/1325987
>
> Title:
> shuffled keys in keyboard buffer
>
> Status in “lubuntu-meta” package in Ubuntu:
> Confirmed
>
> Bug description:
> Hello,
>
> I've recently installed lubuntu 14.04 on a funnily underpowered
> netbook (Acer Aspire One, 512 Mb RAM, 8GB disk VERY slow, probably
> made out of cheddar).
>
> Being the RAM limited and the disk amazingly slow, the PC often
> freezes for a few seconds during almost any operation. In previous
> Linux installations on the same machine I used to keep on typing,
> waiting for the result buffered keys to appear after the tantrum has
> passed. On this installation instead the keys appear... but shuffled,
> not in the order they were typed.
>
> As an example I've just "op w aandt hee yeoennab pstgnditmde" (that
> was "opened a new tab and typed something").
>
> What could be the component to blame? Thank you.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 14.04
> Package: lubuntu-desktop 0.55
> ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
> Uname: Linux 3.13.0-27-generic i686
> ApportVersion: 2.14.1-0ubuntu3.2
> Architecture: i386
> CurrentDesktop: LXDE
> Date: Tue Jun 3 15:09:44 2014
> InstallationDate: Installed on 2014-05-20 (13 days ago)
> InstallationMedia: Lubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140416.2)
> SourcePackage: lubuntu-meta
> UpgradeStatus: No upgrade log present (probably fresh install)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/lubuntu-meta/+bug/1325987/+subscriptions

[Daniele Varrazzo (daniele-varrazzo)]

I'll be able to repeat the test on my cheesy laptop in 2-3 weeks.

[Luigi Calligaris (luigicalligaris)]

This Lubuntu user had the same problem, identified it as ibus-related and fixed it by replacing ibus with SCIM.

http://ubuntuforums.org/showthread.php?t=2230701

I removed ibus and installed scim, will see if the problem resurfaces.

sudo apt-get remove ibus && sudo apt-get install scim

[Daniele Varrazzo (daniele-varrazzo)]

Removing ibus on regular ubuntu also wants to remove ubuntu-desktop, which is less than optimal. See bug #1365752. I don't know if it applies to lubuntu too.

I'm checking the dependencies there and actually the dependency is actually ubuntu-desktop -> unity-control-center -> ibus.

If lubuntu allows you to remove ibus without removing core packages by all means reassign this bug to the ibus package, thank you. As said above I won't be able to test with that laptop for a while.

[ԜаӀtеr Ⅼарсһуnѕkі (wxl)]

The -desktop packages are just indexes for the respective -meta package.
You're ok to remove it.
On Sep 10, 2014 7:26 AM, "Daniele Varrazzo" <email address hidden>
wrote:

> Removing ibus on regular ubuntu also wants to remove ubuntu-desktop,
> which is less than optimal. See bug #1365752. I don't know if it applies
> to lubuntu too.
>
> I'm checking the dependencies there and actually the dependency is
> actually ubuntu-desktop -> unity-control-center -> ibus.
>
> If lubuntu allows you to remove ibus without removing core packages by
> all means reassign this bug to the ibus package, thank you. As said
> above I won't be able to test with that laptop for a while.
>
> --
> You received this bug notification because you are a member of Lubuntu
> Packages Team, which is subscribed to lubuntu-meta in Ubuntu.
> https://bugs.launchpad.net/bugs/1325987
>
> Title:
> shuffled keys in keyboard buffer
>
> Status in “lubuntu-meta” package in Ubuntu:
> Confirmed
>
> Bug description:
> Hello,
>
> I've recently installed lubuntu 14.04 on a funnily underpowered
> netbook (Acer Aspire One, 512 Mb RAM, 8GB disk VERY slow, probably
> made out of cheddar).
>
> Being the RAM limited and the disk amazingly slow, the PC often
> freezes for a few seconds during almost any operation. In previous
> Linux installations on the same machine I used to keep on typing,
> waiting for the result buffered keys to appear after the tantrum has
> passed. On this installation instead the keys appear... but shuffled,
> not in the order they were typed.
>
> As an example I've just "op w aandt hee yeoennab pstgnditmde" (that
> was "opened a new tab and typed something").
>
> What could be the component to blame? Thank you.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 14.04
> Package: lubuntu-desktop 0.55
> ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
> Uname: Linux 3.13.0-27-generic i686
> ApportVersion: 2.14.1-0ubuntu3.2
> Architecture: i386
> CurrentDesktop: LXDE
> Date: Tue Jun 3 15:09:44 2014
> InstallationDate: Installed on 2014-05-20 (13 days ago)
> InstallationMedia: Lubuntu 14.04 LTS "Trusty Tahr" - Release i386
> (20140416.2)
> SourcePackage: lubuntu-meta
> UpgradeStatus: No upgrade log present (probably fresh install)
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/lubuntu-meta/+bug/1325987/+subscriptions
>

[Sven (muffl0n)]

Replacing iBus with SCIM works great for me! Thanks for the hint!

[Felix Moreno (info-justdust)]

Same problem with ubuntu 14.10 i7 laptop, two keyboards, and 12GB of ram, when there is a freeze of the system, even for just a few miliseconds the keyboard writes a buffered random char again and again and again... you have to close the app and open it again to have the correct keyboard working.

Also I had problems with nautilus renameing folders but this is another bug but smae problem, ibus...

[Marc Brevoort (virtualstock-marc-brevoort)]

This problem still manifests itself Ubuntu 18.10 LTS. Laptop is a few years old but certainly not "underpowered".

[Chris Guiver (guiverc)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Ubuntu version. When you test it and it is still an issue, kindly upload the updated logs by running only once:
apport-collect <bug #>

and any other logs that are relevant for this particular issue.

[Launchpad Janitor (janitor)]

[Expired for lubuntu-meta (Ubuntu) because there has been no activity for 60 days.]