General :: Mapping X11 Modifier To Shift_R

Feb 10, 2010

I cannot set mod3 to the Shift_R key with xmodmap.
matthew@lokal:~/.fvwm/Default$ xmodmap -e "add mod3 = Shift_R"
X Error of failed request: BadValue (integer parameter out of range for operation)
Major opcode of failed request: 118 (X_SetModifierMapping)
Value in failed request: 0x17
Serial number of failed request: 11
Current serial number in output stream: 11

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General :: Re-mapping Non-standard Keys To Modifier Keys?

Apr 7, 2011

I'm running Debian (Squeeze) and I have a toshiba portege m700. It has five buttons on the front just under the screen, which are the only ones accessible when you flip the screen over into tablet mode. One of them is for rotating the screen, and another is for switching to external display. I want to remap the remaining three to control, alt and super so that I can use shortcuts with the stylusThe problem is, when I used showkey to find out the key codes, I found out that each button generates more than one key code:Button 1:

key 126 press >> super_r, although this is distinct from the actual super key (125)
key 7 press >> 6
key 7 release
key 126 release

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General :: IPossible To Convert AppsKey To A Modifier Key In Debian?

Sep 24, 2010

I never use the <AppsKey> (or <Menu>), and I want to convert it to a modifier key, e.g. Mod4, Mod5, etc. So as to utilize some shortcuts like <Mod5>+<Shift>+J.

Is it possible in Debian/Linux?

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Hardware :: Keyboard Fn Modifier Key (not F1 - F12)

May 18, 2010

Using: Ubuntu Lucid Lynx (Gnome).
I have a physical disability which makes pressing the <Ctrl><Alt> key combination very hard, but it would be nice to have that key combination available to me for keyboard shortcuts. I've never got on with 'Sticky Keys' and don't want to use that as a solution, it takes me so long that it is self-defeating as a shortcut key combination. I use a reduced size keyboard, a Cherry ML4100 (image below), which has a 'Fn' key between the left <Ctrl> and <Alt> keys, this 'Fn' key when pressed in conjunction with F1 or F2 will simulate a F11/F12 key press (see image), it also allows the use of a 'num pad' with the u,i,o,p, etc. keys to the right of the centre of the keyboard but which I never use.

In System -> Preferences -> Keyboard Shortcuts I can not currently use the 'Fn' key at all, it is totally ignored, the system just does not recognize it. Eg. If I press <Fn><A> only 'A' is recognized. What I'd like to do is somehow map the 'Fn' key so that when pressed at the same time as <Ctrl> it simulates a <Ctrl><Alt> key press, while still leaving 'Fn' to work as usual generating F11/F12 key presses when F1/F2 is pressed with it. Alternatively if I could set up the 'Fn' key to work as a shortcut with any other key, EG. <Fn><LeftArrow> to switch to the left workspace, and then map F11 and F12 to another key combination - in fact this second solution would be preferable.

However the xev utility, which I had hoped would provide me with a key mapping code for 'Fn', does not even register when 'Fn' is pressed on its own, but when 'Fn' is pressed with F1 it gives what I suppose is the the F11 key code (it is a different code to what is shown when F1 is pressed on its own). I am beginning to suspect that what I am trying to do is not possible. My disability means that using keyboard shortcuts is a really good way of my doing things, much faster than the mouse, so I'd like a lot set up, and I mean far more than most people would ever use, including starting a dozen or so regularly used apps, I'm running out of what I can do with <Ctrl><Shift>, so really need to simulate <Ctrl><Alt> or have the 'Fn' key active when setting my Keyboard Shortcuts, EG. <FN><A>.

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CentOS 5 :: Win Key Not Acting Like A Modifier Key

May 27, 2010

This just started happening, but I haven't logged out or rebooted in a while, so I'm not sure what could be causing this. I have setup some keyboard shortcuts to use the Win modifier key (Mod4, Super, whatever). The keyboard shortcuts utility in KDE list it as the Win key so that is how I will refer to it. Some example shortcuts: Win+t starts a terminal, Win+m toggles windows maximize mode. I had these setup and they were working fine on this install that I've had for about a month, but they stopped working today. I can still use Ctrl, Alt, and Shift as modifier keys and they work fine.

I open the keyboard shortcuts utility in KDE Control Center (kcontrol) and start to set a new keyboard shortcut. i.e. I click on the button to "build" a keyboard shortcut. I can press the Win key and it shows that it detects it, but when I press the 't' key, the shortcut is just set as 't' instead of Win+t. I can also push shift+win and that shows in the builder but when I press the 't' key, the shortcut is now set to 'shift+t', so it seems like the Win key is acting funky.

CentOS version 5.4
KDE version 3.5.4-25.el1.centos.1

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Ubuntu :: Modifier Keys Do Not Work Through VNC

Aug 30, 2010

I've been an ubuntu user for a few years now, I just never joined the forums since I never really had problems with my installations. Today, however, is completely different. I recently converted my server from windows 2k3 to ubuntu server 10.04, and have been setting ssh and VNC so that I can access it remotely. Both x11vnc and ssh are installed and working fine, as I can connect to the server from my Macbook, but here is where it gets weird. When in VNC, none of the modifier keys work(shift, ctrl, alt, super) and caps lock only works half the time. (I have to press it twice to turn it on and twice to turn it off).

Server Specs:
Dell Poweredge 2500
1x Intel Pentium III 1Ghz (coppermine)

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Hardware :: Map Mouse Button To Modifier Key

Sep 19, 2010

I have a MX 518 which as 5 additional buttons, I'm trying to bind the thumb button to Control or Shift. I'm fighting against it since yesterday, I tried many things : easystroke, imwheel, xbindkeys/xvkbd. I'm a bit new to Linux so I can still miss something very important. I read a tutorial about that mouse, all went well but it isn't explained how to set up what I wish.

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Software :: Mouse Button As Modifier?

Apr 20, 2011

As I'd like to be able to fully control my desktop with both my keyboard and my mouse, I wrote a .xbindkeysrc.scm script to make two of my eight mouse buttons work as modifiers. For instance, b:9 + wheel now changes volume.

Only problem is, I accomplish this by emulating a key press with a modifier held, and the modifier seems to stick randomly after the mouse buttons have been released.

I would be very happy if anyone could point out the errors in the script below (or with the software used, I don't know how reliable xvkbd is).

(define (display-n str)
"Display a string then newline"
(display str)


The first part declares some base functions for the keystrokes to be sent with xvkbd. Also, the function to reset the bindings on relesae of the modifier is here. (As you may see, I already tried to put in some code to specifically reset the modifiers, with no results.) The second part contains the default bindings for buttons 10-12 when no modifier is held. The third and fourth part specify the actions when modifiers are held, usually to send a keystroke or to run a command. The fifth part performs the bindings for the first, second and third level.

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Debian :: XKB - Super - Not A Modifier In Custom Layout

May 29, 2011

I've written my custom keyboard layout, where I'm trying to remap the Menu key as Super. The key gets remapped, however Super is not recognized as a modifier key, unlike with a standard layout I've used as a comparison. What puzzles me is that the left Windows key, which I never refer to in my custom layout stops working as well.

Here is the relevant section of my custom layout:

Output of xev command shows the key has been remapped correctly:

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Ubuntu :: Turn CapsLock Into A Unique Modifier Key

Aug 23, 2010

I would like to use Caps Lock as its own UNIQUE modifier key (not merely replace it with Ctrl). I have figured out how to do this on windows but not yet in Ubuntu. Here is what I'm looking for:

1. When I press "Caps Lock" on its own, it is equivalent to the Escape key (or at least sends the "escape" command).
2. When I press Caps Lock + <new key>, it does other stuff.

I have figured out how to get EITHER ONE of these to work, but not both at the same time. For example, I have figured out how to turn Caps Lock into the unique "Super" modifier using xbindkeys and xmacro (this achieves #2). I have also figured out how to switch the escape and capslocks keys altogether to achieve #1. But I can't figure out how to get both outcomes at the same time!

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Ubuntu :: How To Use Super Key As Standalone Button And Modifier

Nov 21, 2010

Predefinations: From here on in, I will refer to the "Windows Key" on the keyboard as the "Super Key" (Linux terminology)

Consider a user's experience in Windows:
* UseCaseA: Accessing the start menu --> "Super Key" open the menu.
* UseCaseB: Open the "run dialogue" --> "Super Key" + R
* UseCaseC: Open win explorer --> "Super Key" + E
* etc.

In GNOME/ubuntu however, apparently there is this odd limitation in that the "Super Key" cannot be both a standalone key, and a modifier key. Is it still the case? Currently running Ubuntu 10.04 and 10.10. Apparently in KDE this works, and in Windows it's worked since Windows95. How can we achieve this functionality in Ubuntu/gnome?

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Software :: Map Open Link In New Tab Modifier (Firefox)

Aug 27, 2010

I have many bindings on the control key. I cannot ctrl-click to open a new tab now. How do I change which modifier to use? I do not want to change the accelkey globally, only for opening a link in a new tab!

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General :: Where Are Special Key Mapping Saved

Aug 12, 2010

I've found several how-to's, but the "problem" is that all the ones I've found up to now involve using xmodmap. I'm not radically opposed to that, but, with debian, for some reason, I don't need it. I don't have a Xmodmap file, and yet, the special keys have their "names", instead of NoSymbol (on xev). Anyone knows where the settings are, whenever one does not use xmodmap?To make things weirder I've tried to create a Xmodmap to use with arch from debian, but it get the names all wrong, for some reason. (I used xmodmap -pke > .Xmodmap). I guess that whatever debian does, it has nothing to do with xmodmap then.

But I think it may not be possible. Besides not using xmodmap, on debian I have the correct keyboard layout set without having any command (well, at least not on my openbox startup script... it could be somewhere along all those "deeper" startup scripts, on /etc/rc.#/, I guess... I'm going to check there now), while on arch I have a "setxkbmap" on my openbox startup script.

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General :: Mapping Folders Via RDP Session

Mar 3, 2010

Is it possible to connect local folders to the remote windows machine via RDP session?For example Microsoft's RDP Client has a feature that will connect local hard drives to the remote machine when you open a RDC.I need to copy files but I can't use smbmout because of firewall.

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General :: Mapping With The Router Vyatta?

May 5, 2010

I am new working with vyatta routers and my problem is next:I am installing 5 ip cameras and i am using vyatta router. someone could help me how can i access remotrly by internet to my internal lan where are my cameras instaled. i have read about dnat but i'm not sure if also need to configure ports tha i previosly asigned to cameras i get confuse with that because only find mapping configuration ip address but not ports.

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General :: Keyboard Mapping - Lowercase 'v' Is Not Working

Oct 7, 2010

I have quite a strange issue with (supposedly) my keyboard mappings.

while using GNOME session:

lowercase 'v' is not working as it should - no keypress is reaching apps; while I'm holding V key depressed, gnome-terminal console shows a hollow cursor (just like when input focus is in some other window) and nothing is printed; uppercase 'V' is working just fine (that is Shift+V); if I press AltGr + V, a lowercase 'v' is printed; if I'm typing quickly, sometimes pressing V key to get a lowercase 'v' is not just being ignored, but also the next symbol typed is swallowed and not printed out; this issue is present for the USA keyboard layout, as well as for the Russian keyboard layout.

while using TTY console (Alt+Ctrl+F1, etc):

everything works as it should (i.e. lowercase ' is printed whenever I press it);
no problems with the physical keyboard.

I haven't done any editing of any gnome/X configs and/or keyboard mappings.

This is my Ubuntu 10.04 Linux version:

$ uname -a
Linux hostname 2.6.32-25-generic #44-Ubuntu SMP Fri Sep 17 20:05:27 UTC 2010 x86_64 GNU/Linux

Update - stty output:

$ stty -a
speed 38400 baud; rows 43; columns 151; line = 0;
intr = ^C; quit = ^; erase = ^?; kill = ^U; eof = ^D; eol = M-^?; eol2 = M-^?; swtch = M-^?; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W;


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General :: Mapping The Windows Key To The KDE Start Menu?

Nov 23, 2010

Is it possible to make the Windows key on a keyboard actually do something in Linux? Like pop up the KDE menu or something?

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General :: Generic Mapping Tools (GMT) Text?

Mar 13, 2010

Bellow is a script I'm running to produce several diagrams but I just can't get the pstext command to produce any text

#Script "plotdata" for the assessment


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General :: Setup DM In RHEL5 And Mapping A Device To It?

Apr 5, 2010

How to setup Dynamic Multipathing in RHEL5 and mapping a device to it? I have a RHEL5 server which is connected with a HP BLADE Server. I have installed DM software. Now I want to map BLADE Server's LUN space with a directory of my RHEL5 Server.

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General :: Mapping A Folder Between Two Virtual Installs?

Feb 23, 2011

I am working on a few different Linux related self-education projects, and I'm trying to stump myself as much as possible so I can learn as quickly as possible. Using VMWare, I have several Linux and Windows flavors I am using for various purposes. To the point, I have an Ubuntu server (text only) and a Fedora desktop installed, and I need to figure out how to map a drive on the Fedora VM so that I can access it on the Ubuntu server VM. I have installed Samba on both, and I can send a ping from one to the other with no problems. I guess I just need some help with the command line syntax?

On a related note, I have NOT been able to figure out how DNS works in a setup like this, so when I say I can ping them, it is by IP address only. I'll work on the DNS stuff soon, but for right now, I just need access to my Fedora VM, unless for some reason you can ONLY set this up via DNS.

Ubuntu server
Fedora desktop -
Folder I need to access: [Fedora desktop]/home/[username]/downloads/

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General :: Squid URL Mapping - Proxy Application

Jul 20, 2011

Using squid, can you proxy the [URL] through the site [URL]. From the end-user perspective they would go to and maintain the [URL] and squid would proxy the application at [URL]. More simply the application available at [URL] would load into the namespace/domain [URL].

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General :: Ubuntu : Change Keyboard Mapping?

Nov 1, 2010

I want to change my right alt key to perform a spacebar function.

how do I do this?

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General :: Mapping Memory Space To A Path/filename?

May 4, 2010

I'm working with a lot of data, but always the same. I have, say 2GB that I keep loading 100 times a day from a local disk to do some computations.I was wondering if anyone knew if it is possible to read it once for all and then access it like a file but with the speed of RAM access. I would be looking for something like: Code: file2mem ~/mybigdatafile.dat ~/mybigdata_thats_now_accessed_superfast.dat And then the data is accessible in a way like with a symlink...

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General :: Create A Relationship Between Two OS Like Mapping Network Drive?

Feb 13, 2011

in my windows7 laptop, I installed a virtualbox 4.0 then Fedora 14 as OS. Can I transfer the files from Linux system to windows syatem? I mean can I create a relationship between two OS like mapping network drive?

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General :: Mapping Sftp/scp As A Drive Letter Without User Logins?

Aug 24, 2011

I'm trying to find a software which could map sftp/scp services to a windows drive letter. I know there are quite a bunch of those available, but i haven't found a single one which could run with SYSTEM or Netservice privileges or have decent command line options so i could elevate the program myself. The mapped drive should be available for other services running on the same server.

Most of the programs (sftp netdrive, expandrive, etc) have only option to startautomatically only when someone logs in. Because of that they are useless to me.Their inability to handle non-interactive starts is a bummer too. FTP->SFTP wrappers don't count as solution despite of integrated windows support for ftp drives. The way they are handled in windows makes ftp mapping unusable without some external ftp drive mapper software.

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General :: How To Find The /dev/Device Mapping For NFS File System In RHEL

Jun 19, 2010

Found the below from RedHat Knowledgebase

The Completely Fair Queuing (cfq) scheduler in Red Hat Enterprise Linux 5appears to have worse I/O read performance than in version 4. It appears as though the Completely Fair Queuing I/O scheduler (cfq) has a regression and thus exhibits reduced read-side throughput which can affect performance for both local and NFS mounted file systems.

One way to mitigate this is to set the cfq's slice_idle parameter to zero. To change this value, execute the following command echo 0 > slice_idle in the /sys/block directory appropriate for your situation, as shown below:

echo 0 > /sys/block/hda/queue/iosched/slice_idle

We are using NFS file systems in RHEL 5.3. I would like to know how to find which /dev/Device is being used by the NFS file systems, so that I could try setting the slice_idle to '0' to see if there is any difference in performance? In /etc/fstab I only see the actual NAS volumes for the NFS file systems.

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General :: Mapping With Series From Master File And Calculate Count?

Sep 7, 2010

My shell script is calculating the count of each shortcode series wise whose sample output is as follows:


9124 1
9172 1
9173 4


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General :: Find Mapping Between Man Section Number And It's Description In Standalone Mashine?

Aug 14, 2010

where I can to find mapping between man section number and it's description in standalone mashine.In other words, where I can to find description of some man section when I have not connection to Internet? For example:

1 -> User commands
2, 3 -> Linux programmer's manual
and so on..

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General :: Mapping Kernel Virtual Address Space To Physical Memory Zones?

Nov 4, 2010

As i undertsand - out of 1GB of the virtual Address space for Kernel from 3GB to 4GB of the process address space, Kernel image (code, data, bss, stack, heap) resides staring @0x0 address. Vmalloc area starts either at the end of Physical ram size or at 896M. This 896M cap is mandated to ensure that minimum of 128MB is reserved as vmalloc_reserve for vmalloc,kmap etc.

Is the understanding correct? Now trying to map Physical Zones into this 1GB address space

Initial 16MB is mapped to ZONE_DMA
16MB - 896MB is mapped to ZONE_NORMAL
896MB - 1024MB is mapped to ZONE_HIGHMEM

Does this mean that Kernel image is residing in ZONE_DMA area? Any call to vmalloc() in kernel code will return address beyond 896M? insmod of any LKM will internally invoke vmalloc() to obtain contiguous area - where will this code physically located along with rest of kernel code in ZONE_DMA or in ZONE_HIGHMEM?

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General :: "Permanently" Mapping A Drive In Vista Home To SAMBA Network Share?

Jan 28, 2011

OK, this is really little to do with Linux, as my question really involves my Vista Home machines. Anyone know good methods to have Windows Vista (Home Edition) machines stay mapped to a SAMBA share on a Linux server? I'm using user-level security on the server (Ubuntu Server 10.10), and it (generally) works really well, but I can't get the rest of my family to use it, as (understandably), they don't want to have to type in their password to the share every time they log in to the Vista machines (or my one XP machine left, for that matter), plus the problems when it occasionally decides it's already tried to connect once and failed, and refuses to "restore" the connection, ugh. I currently have one Win7 machine, and surprisingly, with the Win7 Home Premium edition, it actually "remembers" the passwords to the SAMBA shares.

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