Bug 234735 - [mmconf] USB keyboard keystrokes are missed or repeated on virtual terminals
[mmconf] USB keyboard keystrokes are missed or repeated on virtual terminals
Status: CLOSED INSUFFICIENT_DATA
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
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i686 Linux
medium Severity medium
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Assigned To: Kernel Maintainer List
Brian Brock
bzcl34nup
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Depends On:
Blocks:
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Reported: 2007-03-31 23:13 EDT by Jacob Thompson
Modified: 2008-05-06 21:23 EDT (History)
1 user (show)

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Doc Type: Bug Fix
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Last Closed: 2008-05-06 21:23:58 EDT
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Description Jacob Thompson 2007-03-31 23:13:51 EDT
Description of problem:
On a virtual terminal console, using a USB keyboard, typing on the keyboard
either causes missed keystrokes and requires holding down every key for ~1/2
sec. (like typing on a mechanical typewriter), or repeats keystrokes (lliikkee 
tthhiiss)

When using the X Window System, the same USB keyboard works perfectly fine.

Version-Release number of selected component (if applicable):
Fedora release 6.92 (Rawhide)
Linux localhost.localdomain 2.6.20-1.3023.fc7 #1 SMP Sun Mar 25 22:12:02 EDT
2007 i686 i686 i386 GNU/Linux
input: USB HID v1.10 Keyboard [LITEON Technology USB Keyboard] on usb-0000:00:1d.0-1


How reproducible:
Attempt to type on a virtual terminal console

Steps to Reproduce:
1. Press Ctrl-Alt-F1
2. Try to login at a normal typing speed
3.
  
Actual results:
Keystrokes are missed or repeated

Expected results:
Keystrokes captured as typed

Additional info:
Works in X
Comment 1 Pete Zaitcev 2007-04-01 01:09:47 EDT
This does not sound like a kernel issue to me. Most likely, either X or
something else is keeping /dev/kbd open, or something similar is happening.
There was some strangenness recently due to switch of X configuration
tools to evdev.

Please try to log over the network while the symptom is present and
poke around with lsof.
Comment 2 Jacob Thompson 2007-04-01 07:42:46 EDT
I logged into the machine over a null modem cable while running X and at the
console, there is no device containing "kbd" open and in fact, there is no such
file /dev/kbd.  The issue also goes away when using a PS/2 keyboard.

I also tried rebooting with init=/bin/cat on the kernel command line so that no
daemons would be running trying to access the keyboard.  With just cat running,
the problem is even worse, I get tteeeeeeeesssssssstttttttt.

Since this is a 64-bit machine, I tried booting the x86_64 kernel from a USB
key.  The problem is still there.  It occurs with the kernel on Fedora 7 test 3
LiveCD, the Fedora 7 test 3 bootdisk.img for both i386 and x86_64, as well as on
the original Fedora Core 6 install CD (2.6.18?).

On this machine, I have to boot with acpi=off, reported in bug 234733.  Could
this be related?
Comment 3 Matthew Miller 2007-04-10 11:54:02 EDT
Bulk message: Fedora 7 test bugs should be filed against "devel", not against
test1/2/3. This isn't obvious, I know. Moving this report so it isn't lost.
Comment 4 Jacob Thompson 2007-10-06 17:31:27 EDT
This problem is not happening anymore with current kernels using the boot option
with the option pci=nommconf.
Comment 5 Bug Zapper 2008-04-03 19:53:25 EDT
Based on the date this bug was created, it appears to have been reported
against rawhide during the development of a Fedora release that is no
longer maintained. In order to refocus our efforts as a project we are
flagging all of the open bugs for releases which are no longer
maintained. If this bug remains in NEEDINFO thirty (30) days from now,
we will automatically close it.

If you can reproduce this bug in a maintained Fedora version (7, 8, or
rawhide), please change this bug to the respective version and change
the status to ASSIGNED. (If you're unable to change the bug's version
or status, add a comment to the bug and someone will change it for you.)

Thanks for your help, and we apologize again that we haven't handled
these issues to this point.

The process we're following is outlined here:
http://fedoraproject.org/wiki/BugZappers/F9CleanUp

We will be following the process here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping to ensure this
doesn't happen again.
Comment 6 Bug Zapper 2008-05-06 21:23:56 EDT
This bug has been in NEEDINFO for more than 30 days since feedback was
first requested. As a result we are closing it.

If you can reproduce this bug in the future against a maintained Fedora
version please feel free to reopen it against that version.

The process we're following is outlined here:
http://fedoraproject.org/wiki/BugZappers/F9CleanUp

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