Software :: Locks Keyboard And Mouse But Leaves Display Active?

Feb 4, 2010

I have a computer whose display I want active all the time, but that I don't want people coming up to and doing anything on. At the same time, I want the keyboard and mouse to remain connected because even though they will seldom be needed, when they are needed it's important that they be available quickly.I guess I'm looking for a screensaver that doesn't save the screen. Something that prevents the mouse and keyboard from doing anything unless a PAM authentication is entered, just like a screensaver would

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General :: Active Window Fading When Mouse Leaves It?

Feb 5, 2011

I have been playing around with Ubuntu 10.10 for a few days. I had the functionality of when my mouse left the active window it would fade and any window behind it I moused over would come into focus. I liked this feature, but I broke it somehow. I was playing around with Compiz and all its cool animations, cube transitions, and other stuff. I am not sure if I did something in Compiz to break it or if that is unrelated.

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Hardware :: OpenSuSE 11.2 Locks Up When Scanning And Usb Keyboard/mouse Become Non-operational

Feb 12, 2010

This week I installed OpenSuse 11.2 on a brand new system and I've found that if I'm using the mouse while I'm scanning or sometimes just flipping back and forth with my usb kvm the keyboard and mouse become useless. If I'm scanning while I use the mouse, the system locks up. Here is what I'm seeing in /var/log/messages. After executing xsane:

Feb 12 11:10:41 bnmlinux xsane: io/hpmud/musb.c 1987: invalid usb_open: Permission deniedFeb 12 11:10:41 bnmlinux xsane: io/hpmud/musb.c 1987: invalid usb_open: Permission deniedFeb 12 11:10:41 bnmlinux xsane: io/hpmud/musb.c 1987: invalid usb_open: Permissi
on deniedFeb 12 11:10:41 bnmlinux xsane: io/hpmud/musb.c 1987: invalid usb_open: Permissi


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Ubuntu Installation :: Maverick Mysteries - USB Keyboard / Mouse And Display

Nov 8, 2010

I have several machines which have been dual booting Ubuntu and Win for a couple years. Not much problem with setting them up, and Ubuntu has been trouble free. With this Maverick release, however, I've had quite a bit of trouble. Having trouble characterizing the flakiness, but it persists on this machine as follows ...

I did a clean install of the 10/10/10 distribution, dual booting with Win 7. Seemed to install OK and boot up once, although there might have been small problems during install, causing me to start over clean. Machine is relatively new AMD X4 940, with ATI HD 4800 video. The first flaky thing is that Sometimes (>50% of the time) the USB keyboard and/or mouse don't work (locked up). Sometimes one does, but not the other, sometimes neither work. I can't characterize why, but rebooting sometimes fixes it. The Win 7 environment is fine.

The second flaky thing is that after the initial boot to the graphical desktop, more often I boot to the black login screen. By reading this forum, I've found that "sudo service gdm start" usually starts the graphical desktop (although mostly with the mouse and or kbd frozen). This is a clean install, with the proprietary ATI driver added. I am dismayed, because this is so different from my earlier experience with Ubuntu. Don't know if these problems are somehow linked, or quite how to proceeds. Just looking for more stability.

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Software :: Lock Keyboard (and Mouse) But Leave Display Visible?

Jan 10, 2010

I'd lie to leave the display intact and updating while locking the keyboard and mouse. Ideally, a password would unlock the keyboard but hot keys would work as well. Is there already software to do this? Or a Gnome "screen saver" that doesn't effect the monitor?

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Ubuntu :: Unity Leaves Computer With Purple Background And Large X For Mouse Cursor

May 13, 2010

I added the unity ppa and installed unity to check it out thinking I could just switch back with


dpkg-reconfigure gdm

Unity left me with just the purple familiar backdrop and a large black X as the mouse cursor. In running the above statement I'm left with the background and cursor only. how to get unity working and/or how to get back to gnome?

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OpenSUSE Hardware :: Screen Moves To The Left, Leaves Black Band... But Mouse Is Working On Absolute Places?

Oct 22, 2010

I have a Dell Vostro 1220, with Intel 4 Series Express Chipset Family graphics card. I work on OpenSuse 11.3 (64bit), on the latest kde.I work on an extended 1680x1050 screen on the left of my laptop screen (1280x800). I set this with Kxrandr and it worked great,a while... Now, it shows a black band on the right side of my laptop screen. I can live with that. But the mouse does not recalculate for this difference, so that I need to click 1 inch to the right of where I want to click.

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Ubuntu :: Mouse Randomly Locks Up?

Sep 19, 2010

Once in a while, my mouse pointer will just lock up and then when I try to kill the X server by pressing Ctrl + Alt + Backspace on my keyboard, it quits the desktop and it shows my wallpaper. It does not go back to the login screen. How do I fix this problem?

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Fedora X86/64bit :: Mouse Button Locks

Sep 30, 2010

I downloaded Fedora 13 (x86_64) just two or three days ago, and installed it in VMWare Workstation. The problem that I am having is that the OS will randomly think that I am holding down the left mouse button, which I am clearly not. I only installed the base system (development pack), and did not add any of ther other repositories. I would really like to be able to use Fedora 13, and not just have it sitting there on my HDD, and also use it as a server operating system (because of the configuration tools)

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OpenSUSE Hardware :: 11.2 - System Locks Up When Using USB Mouse?

Feb 12, 2010

At first I thought this was a scanner problem, but I've found that if I'm using the mouse while I'm scanning or sometimes just flipping back and forth with my usb kvm the keyboard and mouse become useless. If I'm scanning while I use the mouse, the system locks up. Here is what I'm seeing in /var/log/messages.

After executing xsane:

Feb 12 11:10:41 bnmlinux xsane: io/hpmud/musb.c 1987: invalid usb_open: Permission deniedFeb 12 11:10:41 bnmlinux xsane: io/hpmud/musb.c 1987: invalid usb_open: Permission deniedFeb 12 11:10:41 bnmlinux xsane: io/hpmud/musb.c 1987: invalid usb_open: Permissi
on deniedFeb 12 11:10:41 bnmlinux xsane: io/hpmud/musb.c 1987: invalid usb_open: Permissi


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Ubuntu :: USB Keyboard Locks Up After Resume From Suspend

Feb 20, 2010

When I suspend my computer and then resume later in the day my USB keyboard locks up. The only way I have found to reset the keyboard is to disconnect the USB cable from the USB port and then reconnect it.

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Ubuntu Installation :: Mouse Locks When Loading Rhythmbox In 9.10?

May 1, 2010

I have been using Ubuntu for quite a while now and have upgraded from 9.04 to 9.10 using the upgrade system.However, I now have an issue with Rhythmbox that wasn't there in 9.04 - whenever I load it the mouse stops working and the light on it starts flashing (it is a trackball).It only happens when I load Rythmbox and nothing else I have come across and happens each time. I have tried uninstalling Rhythmbox and re-installing but it is still the same.I have also searched the forum and googled the problem to no avail.I am using Ubuntu 9.10 on a Intel P4 with 2GB memory, more than sufficient hard disk space spare.

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Ubuntu :: Gnome Screensaver Locks Up Display

Dec 25, 2010

Dell PoweEdge 1600SC
ATI Radeon HD 2400 Pro 256MB PCI graphics adaptor
Ubuntu 9.10 "Karmic Koala"
Linux 2.6.31-22-generic #69-Ubuntu SMP Wed Nov 24 08:51:08 UTC 2010 i686
ATI fglrx drivers
Set up for dual-head display using two Princeton 19" monitors
Using the Gnome desktop and screensaver

At some point, I suspect since the last kernel upgrade, I've begun experiencing a problem when the screen locks: I tap a key on the keyboard and the monitors wake up, but I get no "unlock" dialog. I can usually Ctrl-Alt-F1, login and gracefully reboot the system, but sometimes I have to hit hard reset. For now I've disabled the screensaver in "System -> Preferences -> screensaver" (I assume that'll stop the problem), but that's not an optimal solution.

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Hardware :: <PrintScreen> Key Locks Up Keyboard In Ubuntu 10.10 Alpha 2

Jul 6, 2010

Basically, whenever I press <PrintScreen> I cannot type anything and on some rare occasions my X crashes.

I have Ubuntu 10.10 Alpha 2 on an Acer Aspire One AOA110-1545.

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Ubuntu :: Thunderbird Install - Keyboard Locks When Password Requested

Feb 22, 2011

I'm trying to install thunderbird, and I found the instructions.
Open terminal window / Code: sudo aptitude update /
I am then prompted for my password, but they keyboard will not register any keystrokes! [new paragraph] I love ubuntu and what it does for me security-wise. I love that it is opensource. I really do. But I have yet to install a single program on it, without extensive help from the help forums and a process taking days at the minimum.

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Fedora Security :: Mouse Pointer Locks In SELinux Sandbox Window?

May 29, 2011

Running firefox in a SELinux sandbox - periodically the mouse refuses to leave the sandbox (i.e., gets stuck in the browser, refusing to traverse across the window border onto the desktop). This usually happens once in a while, though periodically once every 15 mins or so - no particular pattern, no pattern in the websites visited either.

The setup is as follows:

- Fedora 15 with a bare metal X install (TWM, desktop locked down ala a kiosk install - I will try a different wm to see if that makes any difference at some point)

- VPN (having been through a few VPN providers not all are equal, and this is a pretty good one, running OpenVPN at the mo. - I will try L2TP when I get round to it)

- Firewall locked down to the max.

- As far as reasonably can be done, no direct access to the machine - the install at least in theory is untainted

Does anyone know of a SELinux forum? Can't see anything myself or at least in the first instance.

I'm assuming this is a MITM problem - largely 'cos I have crime sitting on my (Internet) ass. Same problem with SL6 also, so not Fedora specific. I shall put the security spin into a VM and develop my network engineer skills at some point!

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Ubuntu :: How To Get Mouse Buttons Active?

Nov 20, 2010

My mouse has 5 buttons, first 3 are traditional right-left-scroll wheel, plus two buttons for back and forward in the browser history.How do I get these two buttons active?I'm running 10.10 in a virtual machine in virtualbox,

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Debian Multimedia :: Numlockx Can't Active Keyboard Led

Jan 12, 2011

I use Debian Squeeze and I'm experiencing a problem that did not occur in Lenny. The app numlockx is capable of turning my numlock on and off, but it can not change my keyboard led status.

For example, if my numlock is off and, consequently, numlock led is off too, when I run "$ numlockx on" the numlock starts working just well, but the led remains off. The same happens if numlock/led is on and I run "$ numlockx off", the numlock stop working just as expected, but the led remains on. it seems numlockx 1.1-10 (Squeeze version) can effectively change numlock, but it can't change keyboard led.

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Ubuntu :: Keyboard No Longer Active During Boot?

Jan 6, 2011

I just replaced my RAM, and searched for the best way to do a memory test in Ubuntu. I ran across this page:


...which says:


Turn On or Restart the system Hold down Shift to bring up the GRUB menu. Use the arrow keys to move to the entry labeled Ubuntu, memtest86+ Press Enter. The test will run automatically, and continue until you end it by pressing the Escape key
Allow the test to run for at least one full pass

So I did exactly that. The GRUB menu appeared, but I had no keyboard control, and thus couldn't select anything. I've tried rebooting several times with different keyboards, and they all show 3 green lights at the very beginning of boot, but become unavailable by the time GRUB appears.

So I booted to a Live CD and the keyboard worked just fine inside that session. But it's still gone during boot. When I'm booting without a CD in the drive (booting to the internal HD as usual), it goes straight to the GRUB list, with no keyboard control, and I'm stuck indefinitely.

how to either bypass this stuck GRUB screen, or somehow restore normal keyboard functionality during early boot?

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Debian :: Fast Mouse Scroll Up / Down Changes Active Window

Aug 12, 2015

Fresh install of Debian 8.1, have not changed a single setting anywhere. Was scrolling in the web browser and noticed that if I scrolled up or down fast enough the active window changes. Using kde as the desktop environment. Also this has nothing to do with the browser as it happens with anything I have open. Heck trying to scroll in console and having a document open just flips between the two of them. Only way this does not happen is if I scroll slow enough.

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Red Hat / Fedora :: Display Active Mounted Filesystems Using C?

Feb 10, 2011

I want the sample code to display the active mounted filesystems for a particular user from VM server.

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Ubuntu / Apple :: Keyboard Not Active On MacBookPro/VMWARE/ 10.04

May 1, 2010

Using VMWARE Fusion 3.01 on Macbook Pro 15", C2D 2.8Ghz, installed Ubuntu 10.04 on a virtual disc, no problems installing. boots up, offers me my mac username/password logon, but no keyboard entry registers, Cursor is in the password box, tried external PC keyboard, same lack of keyboard enry. So deleted Virtual disc.

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OpenSUSE Install :: Crash: Server Is Already Active For Display 0

Jan 24, 2010

I think I've totally destroyed my Suse install, but I have no idea what happened.

I was running Yast's "Create a backup" utility and my screen totally went black and kicked me to the login screen. I was unable to log in, except to a terminal.

So, then I tried to restart X (by typing startx) and I get "Fatal server error: Server is already active for display 0"

I've tried running the repair utility, and it doesn't work. Through a number of commands, I was able to start up a second X session, but that wasn't really much help.

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General :: Lost StartX - Black Screen With Active Mouse Cursor

May 25, 2010

Redhat Ent Linux ES Release 2 (Taroon 8)
Kernel 2.4.21-4.ELsmp
startx(1): initialize X session - Linux man page

I thought I'd look into methods of recovering from a lost password for future use, how to change the passwd and shadow should I need to. So I started an X session, vi'd my .swp files then logged off. Perhaps I changed one of these files accidentally, but my intent was just to view them which I did. After starting up my computer the next day and logging in I began an X session - "startx". The session appears to have started, but with a black screen and an active mouse cursor.

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Ubuntu / Apple :: Screen On Display Entirely Black - External Monitor Never Becomes Active

Apr 3, 2011

Just did a fresh install of Natty B1 (previously had alpha 2).. I noticed this issue w/ A2, as well.. plugging in the exterminal monitor (via mini-displayport-to-vga connector) will do the following:

1) turn the screen on the laptop's display entirely black (but not turn it off).. i can move and see the mouse cursor.. but everything on the window appears to not rending or "painted" black..

2) external monitor never becomes active..

the only way to recover is to kill/restart X or reboot after disconnecting the extmon.. having extmon plugged in from boot produces the same results (and it doesn't seem to ever become active during boot up). sometimes this won't happen right away if i plug in the external monitor.. but opening the Monitors system prefs dialog will definitely cause (or detect displays) ,etc I waited to see if the issue would fix itself w/ the beta update, but it hasn't.. Any other 8,1 owners out there that can verify this issue? My (totally uninformed) guess is that it's due to differences in the display/gfx hardware and thunderbolt integration(?)

(I've seen a verification verifications of working-out-of-the-box.. but they were from 8,2 and 8,3 owners (which have discrete graphics cards))... If anyone's gotten this to work with some config stuff, I'd love to see that as well (since the wiki page for 8,1 says it works ootb). If someone could let me know where I should look to capture error output when the above issue occurs, that would be awesome.

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Ubuntu Networking :: Check The Network Connection Applet, It Display Active Information Of Eth0?

Jun 7, 2010

I have a question regarding the configuration of Network Connection. My wired connection is fine right now and when I check the network connection applet, it display active information of eth0. However, when I click the Configure button, the Network Connection window appears but there's nothing in the Wired panel. Should there be a eth0 in that panel? I remember I had one before, but after I messed with some configuration of VPN, my network became unstable and I remove the Network Manager to try to solve the problem. Since then, there's nothing in my Network Connection window, though I can still connect to my router with eth0. Now even after I reinstalled the Network Manager, I still don't get anything.

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Fedora :: Keyboard & Mouse Not Available In X?

Jan 11, 2011

I've got a problem with input devices not being available under X.

I've installed F13 with 'minimal' type, i.e. no desktop environment.

After a lot of struggle, I managed to install quite a few packages (after configuring network!) and the Nvidia (proprietary) driver, disabling the nouveau driver.

I got to mention that nvidia installer offered me to create a xorg.conf on its own with its drivers configured for X. But the thing is if I type X or Xorg the screen turns black meaning that X is running but I don't see anything. Looking at /var/log/Xorg.0.log, I see this message:

AllowEmptyInput is on, devices using drivers 'kbd' or 'mouse' will be disabled.

Then, later on, i installed gnome thinking it'll take care of these input devices but the same happens in the gnome login screen too. Both Keyboard and mouse are not working.

I've tried adding the Option "AllowEmptyInput" "off" or Option "AllowEmptyInput" "false" in my xorg.conf under both the input devices section and also the server layout section, but all in vain.

I'm sure I'm missing some setting or something. I've also looked at a few bugs logged in the RedHat bug DB but their resolution of setting the AllowEmptyInput to false doesn't work in my case.

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Slackware :: Keyboard And Mouse In 13.1

Dec 7, 2010

I've been using Slackware for ages... since like 1997 or 1998. I have a Slackware 3.x CD around here somewhere. I'm usually the one explaining how Linux works to everyone else. I even got GnuCash working on Slackware. So these two problems ...

1. Keyboard in Xorg. It seems to work, except the down arrow and the page down buttons are mapped as something else (the down arrow causes TEXT TO DISAPPEAR...I've had to type this like three times now...). After a bunch of searches, it looks like a problem with HAL and evdev (whatever that is). I tried setting the model in KDE's Regional control panel but that had no effect.

Xorg.conf settings for this section... you can see some remnants from prior attempts:

I did check that event1 refers to the keyboard. The keyboard is a Microsoft Internet Keyboard that works fine; the arrow keys work great outside of X.

2. Mouse in Xorg. The scroll wheel wants to scroll side to side instead of up and down. This also happens to be a Microsoft product (I like their mice... my wife brought the Microsoft keyboard into the relationship...). It's just a wheel optical 3-button mouse, nothing special. Again, none of my usual xorg.conf edits seem to work; here's what I have right now.

Again, I checked that the mouse is event2.

Someone really should make an upgrade guide for people like me that have been using it for years and aren't really following the tech that explains new features like hal and evdev (I know hal has been around for a couple versions, but I've never gotten involved with it until now). Or maybe there is one and I'm just not aware of it. Basically I just want it to just work, which is why I use Slackware in the first place!

I should mention I did have both working under Slackware 13.1 on this machine until Windows conveniently erased my root partition for me, so I got to do a completely clean Slackware install for the first time in a LONG time. That's when the issue arose. Because I was in a rush, I did a full install. I assume the previous setup was using non-hal/non-evdev methods, but I might as well set this one up using the new methods, right?

I'm using Slackware64 13.1, running on a Core 2 Quad Q8300 @ 2.50 GHz. Hardware is fine - both mouse and keyboard work under Windows XP, and like I said the keyboard is fine outside X. It has to be some configuration problem ...somewhere.

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Debian :: Unable To Use Either Keyboard Or Mouse?

Aug 29, 2011

For some reason I am unable to use either my keyboard or my mouse. No problem in etch up until now, even after rebooting.

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Ubuntu :: Can't Use Mouse And Keyboard At Same Time

Jul 8, 2010

I can't seem to use my mouse and keyboard at the same time.I am running Ubuntu 11.04 64-bit

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