General :: Keyboard Activating SHIFT Randomly For A Short Time
Feb 14, 2010
I think this might be related to the changes to using udev or DeviceKit. It started when I was running the beta versions of F12. Then it crept into Debian Sid. And my Arch Testing and Gentoo also suffer from the same.
What happens is that I'll be working along. Then when I press any key it is as if the SHIFT key is pressed. When I press CAPSLOCK, some of the keys react as they would normally. This never lasts for more than 5 minutes. And seems to happen infrequently. I say seems because there are the times I am at work and it could be that the same thing is happening only there is no one on the keyboard.
The reason I pick out udev/DeviceKit is that when it used to happen to F12 beta, the other distros had not yet made the move. So back then it was only a F12 issue. Now it is happening across the board. And only started recently.
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Apr 15, 2010
I'm just wondering what the limits for time are. I have a program that always takes exactly 20 ms, so I assume this is the lowest it can measure, but I want to see if there's some sort of documentation of this.
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May 8, 2011
I want to capture short randomly occurring events such as Sudden Interstellar Disturbances, Lightning, ion counting, etc. To do this I wish to use the LINE-IN port. My sensor would feed a signal of less that 2 volts but could be submitted via a voltage divider. Since the sound card captures 44100 events per second this should capture events I am looking at, I think, but maybe not. I would capture the sound buffer to a string or memory buffer every second (and half second so I can prevent overwriting of its buffer, then merge the two).
Every 60 seconds (for validation) I would run "time" and count full buffer transfers in between to time events. By effectively counting characters from the beginning of the processing buffer to the beginning of the event I could further refine the "time to event". I think I could then save a decent number of values or until no data received from the processing buffer to preserve the event. This I would output with event time (to within 1/44100 sec) along with the data points captured to a file.
Except for the outputting of info to a file I think I can scan a buffer for events within a second (while LINE-IN continues capturing data on that port). I believe I have a way to handle the outputting. I am asking if any of the processing of the previous buffer would interfere with the sound cards data capture on LINE-IN? There would be no disabling of interrupts. I am presuming that system interrupts would not effect the LINE-IN data capture. Is this true?
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Jul 20, 2010
my keyboard has gone very strange, the shift key is not working, and when i press "t" i get rt. when i press "y" i get "uy" all was fine - have had ubuntu for several months, but last few weeks been strange. software centre no longer works, and cannot "unlock" on ubuntutweak. also my bluetooth dongle has stopped working are all these problems connected? i have reinsrtalled rthe sofrtware cenrtre and ubunrtu rtweak burt rto no avail
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Jun 13, 2011
OK so I goofed something up trying to make my own keyboard short cut now I get this message Error while trying to run (Alt+l)which is linked to the key (<Shift>a)when ever I hit Shift a makes it hard to write any emails and such.
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Jan 30, 2010
Recently I have noticed that at times my keyboard will act as though shift is pressed. That is, letters are capitalized and when i press a key, its shift equivalent is shown. I actually first noticed this behaviour on fedora 12 beta (i believe fedora has been using udev/DeviceKit since F11). At the time of F12 beta I was not aware of fedora using udev. Where can I find a comprehensive guide to setup udev? Or if it all fails, how to re-enable settings in xorg?
Here is what cat /var/log/Xorg.0.log | grep -A 5 -B 5 evdev shows
(II) Initializing extension GLX
record: RECORD extension enabled at configure time.
record: This extension is known to be broken, disabling extension now..
record: [URL]
(II) config/udev: Adding input device "Power Button" (/dev/input/event3)
(II) LoadModule: "evdev"
(II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
(II) Module evdev: vendor="X.Org Foundation" .....
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Mar 2, 2011
So Ive had this issue off and on for a while now, but have never really looked to see if others have had it or how I can fix it. Essentially the problem is that kde seems to randomly decide that I am holding down the shift or ctrl key.Im using a logitech cordless desktop s510, running openSUSE 11.3 x86_64. Ive had this problem on and off using a couple of different logitech keyboards. The most often time when it happens with the shift key is when im coding, and the control key when Im running a keyboard shortcut.
I can usually fix the issue by holding down the key that kde thinks is pressed for like 5-10 seconds and releasing, however sometimes I have to unplug and then replug in the usb adapter for kde to get things right. This doesnt happen if im running a non-graphical terminal (thouhg I cant say whether it happens in gnome as I dont have gnome installed) so I am thinking its related to kde. The keyboard can be plugged into other computers and they dont act the same way.
This gets esspecially annoying when Im coding (because of all the symbols) and generally when the issue occurs. I think it may have something to do with the key being pressed for over a certain length.
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Aug 11, 2010
I installed network-manager-vpnc, configured cisco vpn through NetworkManager. It works slow, but the bigger problem is that after minute or so the connection just freezes.Then I tried kvpnc. It works like it should from speed point of view. But it also hangs up after minute or two.Tried to change MTU of my wired connection to 1500 - no good.Tried to uncomment line in /etc/ppp/options "mru 542" - no good.
Created /var/run/vpnc because it was giving some error "can't open pidfile /var/run/vpnc/pid for writing".From logs everything seems fine except for "nm-dispatcher.action:Script '/etc/NetworkManager/dispatcher.d/01ifupdown' exited with error status 1." in last line. If I use kvpnc it gives no errors.SO, how do I debug this thing or does anyone knows something I don't in this case?
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Nov 12, 2010
I have installed ubuntu 10.10 for a short time, now I meet a problem:I always leave for lunch and leave my computer without turning off. When I get back, it shows a window. after I input my password, I enter my system.Then It halts, the only thing what I can do is moving mouse. After halting for nearly one minute, it resumes to normal.I hope someone can tell me what happens.
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Jun 15, 2010
I am wondering if pthread could make that a single thread keeps the "mutex" all the time if the time it remains unlocked is very small.
thread1
{
while (1)
{
lock; do_task(); unlock();
[code]...
I experiment the thread2 never getting access to the mutex and never printing the nice message. I would expect that once thread2 calls "lock", it would get the mutex as soon as thread1 calls unlock() but it does not seem to be the case. If I add a sleep of some microseconds (100) in thread1 after unlocking the mutex, it solves the problem.
Does anyone know if this behaviour is normal? Is there a way to configure my mutex so that thread2 receives it when unlocked?I use
pthread_mutexattr_settype(&att, PTHREAD_MUTEX_RECURSIVE_NP);
pthread_mutex_init(&handle, &att);
to create my mutex. I am running ubuntu 9.04
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Jun 10, 2010
I am backing up data from a remote server onto a local ntfs partition. It seems that the rm -rf and cp -a commands are taking a long time to complete in what should be short, incremental backups.Has anyone had similar problems when backing up to an ntfs partitionHere is my rsnapshot.conf:
Code:
#################################################
# rsnapshot.conf - rsnapshot configuration file #
[code]....
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Apr 13, 2010
This isn't a problem with the 2.6.26 kernel that I have been using, but it is with newer ones. I want to upgrade to a backports kernel, because there has been a REALLY long standing 2.6.26 bug with cpu frequency governors and suspending that is never going to get fixed.
Basically, with the 2.6.30 backports kernel, the hard drive spindown time is way too short. I'd like it to spin down after a minute or two of inactivity, but it is spinning down after only 5-10 seconds. Is there any way to fix this? edit: Now that I think about it, this is also a problem on another laptop that runs squeeze.
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Apr 9, 2010
I updated Fedora 9 yesterday. I rebooted earlier and now the desktop starts for a very short time then disappears followed by a window opening and closing for a few goes. After this nothing! YUM does not work, neither does Firefox! A bug report informed me there was a Python problem but I can find no reference to this anywhere.
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May 20, 2010
Has anyone got Ubuntu 10.04 working on their Dell Inspiron 1100? Most of the time, the screen goes black a short time after boot. Sometimes it goes black right after the splash screen, sometimes I get to log in and then it goes black a little later. Same results when trying to boot into "safe graphics" mode. Ubuntu 7.10 works fine on this machine (although I had to do some special configuration in xorg.conf to get it to work way back when I installed it.) However, it does not appear to be possible to manually configure X in 10.04. I tried disabling the splash screen in grub based on suggestions I found for other Ubuntu versions, but that had no effect on the problem.
Is it possible to replace X with the most recent version that could still be manually configured? Would anyone know how to go about doing that?
Alternatively, if it's impossible to get this old machine to run new versions of Ubuntu, has anyone had success with (relatively) new versions of other distros on it?
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Aug 2, 2010
Though under Windows my Internet connection works fine and fluent under Debian linux it connects and disconnects repeatedly at short amounts of time. It didn't used to be like that but at a certain time i was forced to install pppoeconf to get my DSL internet connection going, after that even if i've uninstall pppoeconf and now i'm only using nm-applet to monitor my internet connection i still have this annoying problem.
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Feb 23, 2010
I want my keyboard to be disabled for sometime say 5min or more. My keyboard gets loaded more than fingers it bears sometimes loads of books.So want to disable for a specific time
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May 4, 2010
My laptop has squeeze and custom 2.6.34-rc5 kernel. This kernel is there from April 20 onwards. Today I am seeing random connect/disconnect of my usb keyboard. In the last 2 hours it got disconnected at least around 10-12 times.
[ 3136.872084] usb 2-1: USB disconnect, address 51
[ 3137.184066] hub 1-0:1.0: unable to enumerate USB device on port 1
[ 3137.712085] usb 2-1: new low speed USB device using uhci_hcd and address 52
[ 3137.888161] usb 2-1: New USB device found, idVendor=0603, idProduct=00f2
[ 3137.888172] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 3137.888181] usb 2-1: Product: USB Keyboard
[ 3137.888188] usb 2-1: Manufacturer: NOVATEK
[ 3137.907637] input: NOVATEK USB Keyboard as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1:1.0/input/input87
[ 3137.908369] generic-usb 0003:0603:00F2.0050: input,hidraw0: USB HID v1.10 Keyboard [NOVATEK USB Keyboard] on usb-0000:00:1d.0-1/input0
[ 3137.945505] input: NOVATEK USB Keyboard as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1:1.1/input/input88
[ 3137.946956] generic-usb 0003:0603:00F2.0051: input,hiddev0,hidraw1: USB HID v1.10 Device [NOVATEK USB Keyboard] on usb-0000:00:1d.0-1/input1
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Aug 25, 2010
Is it possible to map the same "Present Windows - All Desktops" action which is invoked by activating the top left corner of active screens via a keyboard shortcut? I basically want to ape OSX and have an expose-like button, the screen edge works fine for now, but I would love a keyboard shortcut also. Is it possible? Also, when I set up a custom keyboard shortcut to run yast, I initially tried using the same command from the KDE menu: /usr/bin/xdg-su -c /sbin/yast2
However, when I use the keyboard shortcut to launch this command, I get problems when trying to use zypper after the initial launch using the keyboard shortcut(from yast GUI or CLI). The error basically states another instance of yast2 already exists. The problem is only with the app/repo management modules though; for instance I can launch yast (using keyboard shortcut or start menu) and access hardware info, sudo users etc, I just can't access software/repo management stuff. Even when I kill the offending PID from the CLI I still get the error and have to restart the box to rectify it proper. So I changed the keyboard shortcut command to : /usr/bin/kdesu /sbin/yast2
and this seems to have resolved the problem. My second question is what is the difference between the two in this particular instance and why does one cause problems (xdg-su) and the other does not (kdesu).
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Aug 15, 2010
While typing commands it takes more time to type.let me know on how to correct this
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Feb 23, 2010
I installed open suse 11.2 yesterday stock Education edition DVD.
I changed the keyboard because it was generating garbage instead of english chars. (everything was stock from the CD)
The replacement kb is a newer one (I favor the old kb's).
eventually the language and layout of the keyboard changes - usually to Arabic or some Eastern alphabet.
I was really starting to like open suse, but if this persists it is unusable.
Something is misbehaving - any Ideas would be appreciated.
I'm running the default desktop env - gnome.
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Mar 3, 2011
I'm using Ubuntu 10.04 since several months and I randomly have problems with the keyboard (PS2). Maybe 2-4 times per week the keyboard stops working all in a sudden. The symptoms related to this can be- the keyboard simply does not react any more to key press- during typing the keyboard gets crazy and fills the lines with the last typed character- opened windows move to the left when touching them at the top bar, keyboard does not react any more. When clicking on a panel menu the focus line is running permanently quickly through all items, and it's practically impossible to click on any of those (so even shutdown is difficult to achieve, and I might need to use a hard reset).
In nearly all cases the problem only disappears after reboot, just very rarely a logout is sufficient to get the keyboard working again. I googled for similar problems and found quite some people having problems with keyboard (and/or mouse) not working correctly under Ubuntu, but I have not stumbled over a similar error description as I have.Just some config parameters on my box: amd64, XOrg uses an Nvidia driver, 3D and Compiz are activated
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Feb 15, 2011
I have Dovecot installed that constantly "commits suicide" due toe constant time changes on my server.But I don't have any NTPD or anything running.. If I do a Code: watch date it updates the screen every 2 seconds, and you can clearly see the time flip back a few seconds, and then go back to the correct time.. Sometimes it goes back a few minutes, and back to normal..
I literally did this 10 seconds ago..
Code: [root ~]# date
Tue Feb 15 17:15:11 GMT 2011
[code]...
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May 19, 2011
Im Using FC14 and i like it so far. been trying around a bit and made searches for my problem but either im blind or im the only one with this problem (which i doubt) i have a problem of the keyboard "dying" on me mid using it. it doesnt seem to matter what im doing, it still goes dead on me sporadicly. ive tried changing to 4 different keyboards. PS2 and usb keyboards. but all 4 keeps sporadicly dying on me until i reboot and it works again until its dies.im wondering if the problem is in the hardware detection somewhere..if you need hardware information it would be nice if you posted commands so i understand what you need
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Apr 5, 2011
I've been an Ubuntu user for a couple of years. I have a Sony Vaio VPCCW-2S1E laptop, with an Nvidia GT330M graphics card. I had worked with Karmic, Lucid and Maverick on this laptop without any problems, until recently, when I had to re-install Maverick.
Now my laptop keeps freezing entirely (no response whatsoever), with two keyboard lights blinking. This happens randomly: sometimes I'm doing something, other times the laptop's completely idle. Sometimes the screen display turns off on freezing, other times not.
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Jun 11, 2009
2 times now our server has randomly shut down. Completely powered off as if the power cable was pulled or something. Both around the same time. 7:30ish. Once was on Friday June 5th, then last night, Wednesday June 10th.
Here is the log from last nights crash/shutdown:
Quote:
Jun 10 19:23:18 mail avahi-daemon[2564]: Server startup complete. Host name is mail.local. Local service cookie is 1312323680.
Jun 10 19:23:18 mail avahi-daemon[2564]: Service "SFTP File Transfer on mail" (/services/sftp-ssh.service) successfully established.
Jun 10 19:23:21 mail smartd[2625]: smartd version 5.38 [i686-redhat-linux-gnu] Copyright (C) 2002-8 Bruce Allen .....
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Feb 21, 2015
I am using Debian with a gnome desktop.
Code: Select alluname -a
returns
Code: Select allLinux app-server 3.2.0-4-amd64 #1 SMP Debian 3.2.65-1+deb7u1 x86_64 GNU/Linux
My desktop sometimes freezes and does not respond to keyboard or mouse. I initially thought the CPU was overheating but it froze tonight when my CPU temperature was 32C and it has been up to 50C without freezing. I am beginning to think it is a software issue rather than a hardware issue but do not know. I looked at the pm-powersave.log and user.log but did not see anything suspicious.
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Sep 18, 2010
I have a very strange problem with Fedora 13 on my home PC. When booting it just hangs at random points in the boot process. When it happend the first time, I thought the PC probably is completed frozen, but then I discovered that hitting the return button got the boot process going on again, but just step by step. That means on every boot I have to keep hitting the return button until gnome starts up, that's very annoying. So for any reason the boot process seems to switch to interactive mode somehow...
I already removed the kernel boot options rhgb and quiet to see, where exactly this happens in the boot process. But as I said, it seems to be completely random. Sometimes it's when "Starting udev", sometimes, when setting up eth card, when starting atd, and so on. It's different every time.
By the way, a similar thing happens when shutting down. It can take up to half an hour until the PC really shuts down. But it's usually going faster if I just keep hitting return after issueing the shutdown command (which actually looks a bit dull). But the PC finally shuts down at some point. That's not the case when booting up. I thought, maybe there's some kind of timeout problem. But even waiting for two hours, the PC does not startup without keeping hammering the return button
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Feb 4, 2011
I have installed Ubuntu 10.10 on other machines before and have not experienced this problem. Occasionally, the system will lock up. They keyboard and mouse stop responding (my keyboard status lights no longer respond, but my optical mouse light is still on). I can ssh to the machine, and it seems to work as normal. I kill processes that are open on my desktop through ssh, (i.e., Firefox), and I notice when I switch back, I still have the same frozen image on my screen. I have looked at the following files to determine any issues with the GPU:
[Code]...
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Jun 17, 2010
I'm running Fedora 12 on a Shuttle SN78SH7. Updates are all current from the Fedora repositories. I'm using the Nouveau driver for the Shuttle's on-board Nvidia graphics adapter. At random intervals (1 to 5 times per day), my USB keyboard and the buttons on my USB mouse stop working and the desktop freezes (i.e. GKrellm graphical data stops updating, partially painted windows don't complete). However, I can still move the mouse pointer around the desktop. This only seems to happen when I am actually using the computer from the console. It has never happened while the system was turned on, but not being used.
When the mouse and keyboard stop working, I can log in from another computer via ssh. Once the computer gets in this state, the only way to fix things is either to reboot remotely using ssh or to cycle power. I've run low level hardware diagnostics - everything checks out OK. This computer only has USB and firewire inputs. No PS2 jacks.
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Jul 15, 2010
My time keeps getting thrown off by about 15 minutes. It corrects itself randomly but then goes back! Not sure yet if it's decrementing slowly or if it takes 15 off all at once.ntpdate ntp.ubuntu.com puts it back, output is:Code:15 Jul 08:09:29 ntpdate[6157]: step time server 91.189.94.4 offset 1056.199059 secCurious what the "offset" means. Is there a way to ensure it keeps constant time without having to do it manually?
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