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Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or lockup

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On 4/20/22 3:43 AM, Cindy Sue Causey wrote:
> On 4/20/22, Dieter Rohlfing <dr-erc@gmx.net> wrote:
>> Am Wed, 20 Apr 2022 00:43:35 -0700
>> schrieb David Christensen <dpchrist@holgerdanske.com>:
>>
>>> I have been experiencing intermittent storms of random keyboard and
>>> mouse GUI events over the past year or more:
>>
>> Same for me.
>>
>> System is Debian 9.13 (kernel 4.19.0-0.bpo.19-amd64, XFCE desktop) running
>> on an ASRock DeskMini H110M.
>>
>> I'm running this combination with several hosts, but the storm only
>> appears with the ASRock PC. Even with another mouse and keyboard the
>> symptoms remain. So I think the storm mainly depends on the bare host and
>> not on the peripheral components.
> 
> 
> "Sticky keys", an accessibility feature, come to mind as needing to be
> ruled out. I've accidentally triggered mine multiple times over the
> last couple of years. To this day, I have no idea what combination of
> keys I'm hitting that does it. I'll just see a 2-second flash of an
> onscreen notification that they've been triggered on... again.
> 
> 
>> At the moment I'm tinkering with the C-states. I disabled C6 and C7 in the
>> BIOS and added the following options to the kernel command line:
>>
>>> processor.max_cstate=3 intel_idle.max_cstate=3
>>
>> Because the symptoms appear randomly, I can't say anything about a
>> possible solution. I'll continue watching and will report, when I have any
>> news.
> 
> 
> I've also occasionally experienced erratic behavior that's hardware
> caused by two different, unrelated instances. One has been that my
> laptop keys are, for example, worn out and/or overheating and
> "sticking" as though permanently depressed (being physically held
> down).
> 
> The erratic appearance of this particular behavior will occur when I'm
> typing out posts or whatever and incidentally hit a declared hotkey
> that becomes triggered because e.g. the likewise declared CTRL key is
> physically stuck in the ON position. This scenario occurs because I
> have to buy old equipment that eventually overheats and causes things
> like the onboard keyboard to inevitably have a limited lifetime
> expectancy based meltdown.
> 
> The secondary cause for seemingly erratic behavior is easier to fix.
> It's when the dogs or I are somehow leaning on any of my mouse's
> buttons. That will occur sometimes when I've set the mouse down to the
> side and am using a laptop's touchpad, instead. The mouse and the
> touchpad will end up conflicting with each other over which one has
> control of the situation.
> 
> XFCE4 just coincidentally happens to be what I'm using for the above.
> My guess is that, since my situations are hardware based, they would
> likely occur regardless of what desktop environment happens to be in
> use at the time.


Those sounds like different failure modes that what I posted, but I also 
get stuck keys and/or accidentally lean on keys intermittently.  I will 
need to pay more attention to those failures.


I have also read that multiple pointing devices -- mouse, touch pad, 
mouse button, etc. -- can fight each other for GUI input.  I disabled 
everything except the mouse via Xfce, but the problems continued.


David

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Debian 9 Xfce intermittent keyboard and mouse erratic behavior or  lockup David Christensen <dpchrist@holgerdanske.com> - 2022-04-20 09:50 +0200
  Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or  lockup David Christensen <dpchrist@holgerdanske.com> - 2022-04-20 10:30 +0200
  Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior  or lockup Dieter Rohlfing <dr-erc@gmx.net> - 2022-04-20 11:30 +0200
    Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or lockup Cindy Sue Causey <butterflybytes@gmail.com> - 2022-04-20 12:50 +0200
      Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or  lockup David Christensen <dpchrist@holgerdanske.com> - 2022-04-20 19:50 +0200
    Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior  or lockup songbird <songbird@anthive.com> - 2022-04-20 14:00 +0200
      Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or  lockup David Christensen <dpchrist@holgerdanske.com> - 2022-04-20 20:00 +0200
    Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or  lockup David Christensen <dpchrist@holgerdanske.com> - 2022-04-20 19:40 +0200
      Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or  lockup Felix Miata <mrmazda@earthlink.net> - 2022-04-20 20:30 +0200
        Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or  lockup David Christensen <dpchrist@holgerdanske.com> - 2022-04-20 23:20 +0200
          Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or  lockup Felix Miata <mrmazda@earthlink.net> - 2022-04-20 23:50 +0200
            Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or  lockup David Christensen <dpchrist@holgerdanske.com> - 2022-04-21 00:40 +0200
              Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or  lockup David Christensen <dpchrist@holgerdanske.com> - 2022-04-21 10:10 +0200
                Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior  or lockup David Wright <deblis@lionunicorn.co.uk> - 2022-04-21 23:00 +0200
                Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or  lockup David Christensen <dpchrist@holgerdanske.com> - 2022-04-22 02:30 +0200
                Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior  or lockup "Andrew M.A. Cater" <amacater@einval.com> - 2022-04-22 13:10 +0200
                Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or  lockup David Christensen <dpchrist@holgerdanske.com> - 2022-04-22 23:10 +0200
  Re: Debian 9 Xfce intermittent keyboard and mouse erratic behavior or  lockup David Christensen <dpchrist@holgerdanske.com> - 2022-05-13 01:30 +0200

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