[Xorg Mouse Acceleration is Broken in new Xorg 7.4?] Re: Mouse/keyboard no longer work after apt-get dist-upgrade in testing?

Justin Piszcz jpiszcz at lucidpixels.com
Sat Sep 19 13:48:49 PDT 2009

On Sat, 19 Sep 2009, Justin Piszcz wrote:

> On Sat, 19 Sep 2009, Justin Piszcz wrote:
>> On Sat, 19 Sep 2009, Justin Piszcz wrote:
>>> On Sat, 19 Sep 2009, Justin Piszcz wrote:
>>>> Hello,
>>>> I have two hosts (x86_64) & (x86) running and after apt-get dist-upgrade
>>>> this morning, I can no longer use my keyboard/mouse on either after a
>>>> reboot on both machines?
>>>> Has anyone experienced anthing similar?
>>>> On the x86 host it is ps2(kbd)+usb(mouse).
>>>> On the x86_64 host it is usb(kbd)+usb(mouse).
>>>> Justin.
>>> Appears to be a known issue:
>>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=364932
>>> Well here is the fix:
>>> http://osdir.com/ml/debian-bugs-closed/2009-09/msg02262.html
>>> Quote:
>>> The evdev X driver can't work if the CONFIG_INPUT_EVDEV option is disabled
>>> in your kernel configuration. You'll have to either enable this kernel
>>> option, or disable the "AutoAddDevices" option in xorg.conf.
>>> # grep CONFIG_INPUT_EVDEV  .config
>>> # CONFIG_INPUT_EVDEV is not set
>>> Trying now.
>> So this fixes the issue (w/ the kernel config option); to where I can use my
>> keyboard and mouse. however, now there is an annoying lagging with the
>> mouse cursor, I will remove this and try the AutoAddDevices option in
>> xorg.conf
>> to see if it fixes it.
>> I have been using the following mouse setting for many years:
>> xset m 20/5 1
>> It no longer works the same anymore either with the new X server (I am
>> guessing this is the culprit) however I will try the AutoAddDevices and
>> disable the kernel event interface to see if this returns the mouse
>> acceleration back to normal.
>> Justin.
> Update again: Without the kernel option, the 'auto' option for xorg.conf
> did not work, so my question to the debian-user@ list and xorg@ list is
> how do I get my old mouse settings back?
> xset m 20/5 1 which I have been using for a decade++ no longer yields the
> same results for the mouse cursor, before, the acceleration was immediate
> and it stayed the same throughout the cursor movement.  now, when I move
> the mouse slowly to highlight text for example, it moves 1/3 the speed as
> usual and only speeds up when I move the mouse much faster.
> I can downgrade back to an earlier version of Xorg but I was wondering if
> there was a proper fix for this problem?  Is there a document on the new
> settings that makes it so xset m 20/5 1 no longer yields the same
> acceleration/movement etc as it used to?
> ii  xorg                                 1:7.4+4                    X.Org
> X Window System
> ii  xserver-xorg-input-mouse             1:1.4.0-4                  X.Org
> X server -- mouse input driver
> The docs in /usr/share/doc/xserver-xorg-input-mouse do not yield and
> useful information.

Appears to to affect others as well:

Still looking for a fix/work-around.

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