strange issue, keyboard inputs locked by emacs? - linux

I have a crazy problem on CentOS.
I was doing some editing in emacs when I accidentally hit some keys. Next thing I know, none of my regular keystrokes work.
I wasn't able to close emacs no matter what I tried (mouse on X doesn't work either).
I logged in from another PC and killed the emacs process.
However, this still doesn't fix the problem. Now, when I click my desktop shortcut, I can open another konsole, however, I can't type anything into that console!
When I click on the X to close it, I get this black hand, not the regular arrow.
Further, hitting enter doesn't do anything, and any keystrokes I type don't show up in the terminal.
However, if I type s, the Search heading on the terminal window drops down.
Does anybody know how to get out of this weird mode so I can use my PC again?
EDIT: More information. I think my linux is stuck in something similar to Windows ALT mode. For instance, in Windows, when you hit ALT, followed by F, the File menu will drop down. On my PC, when I hit F, the File menu immediately comes down on the active terminal. However, I cannot for the life of me get out of this mode. Been stuck for over an hour now!!

Hitting the ALT key may have solved the problem. I'm not sure if that was what ended up fixing it, but after I hit the ALT key a bunch of times, I got the VNC display to work properly again.

Related

vi not recognizing scrolling, scrolls terminal instead

I have an instance of vi on a remote server that is not behaving like it used to, and I'm not sure what made this happen.
On my local shell, (and the remote server before this started happening), if I scroll with my mouse/touchpad, it would navigate the cursor within vim. I have checked my .vimrc and there's nothing in it relating to the mouse, and I did not make any changes to it before this issue started.
The only thing I can think of is that a few weeks ago, I was trying to figure out how I could split two files in the same vi instance so I could yank from one file to another, and I tried some : commands that I didn't really understand (didn't get any productive results). And also, I ran tmux once, but I don't think there are any . files that are applying unwanted settings (not sure).
I can't find anything to check the vi settings being applied, but I know that my .vimrc is working, and it's not anything in there (if I comment everything out it still behaves this way).
I just want my vi to respond the same way.
Describing the problem more exactly:
If I scroll, the cursor doesn't move, instead it scrolls on the terminal window, and it shows the previous bash commands instead of scrolling the file being edited. If I navigate using vim keys, it still works.
Randomly, I discovered that it actually had to do with the a specific terminal instance that was causing the issue. Closed it, opened a new one, no issue now. If anyone has any insight on why this could've been, I'd love to know.
.vimrc applies to vim not vi, doesn't it ?
the problem of scrolling might come from your terminal emulator as well.
I usually use embedded terminal in VS code which is not ideal (since it's not made for administration ...) but it's practical with keybinds to jump from one window to another, copy paste ...
I know some colleagues who use, mobaXterm or mremoteNG on windows.
I know I should give a go to Terminator, but it's on linux only and I don't want to run a local vm just for that.

Black Screen with cursor before log in

I have tried all the possible solutions to solve it given in the internet. But my problem does not solved.
So I want to reset my pc. If so is my pc get back to normal state. Previously I have resetted my pc for another problem. Is my resetting option works again. My friends said that reset options works only once...
Can anybody suggest me what to do??
The issue here seems to be that Windows thinks you have a new monitor that does not exist.
The most common solution that seems to have worked for many people (did not actually work for me, but worth a try): Wait long enough so the mouse cursor to appear when you move the mouse. (blank screen with a white mouse cursor) Then press the Ctrl and enter your login password. Wait until login competed then press Win+P keys, down arrow keys twice, and enter to extend display. (this spans your monitors onto one display)
The solution that worked for me was to unplug all monitors, reboot (hard reset, holding down power button), then plug in just one monitor. (may need to reboot again)
I solved the issue by pressing
Press Ctrl+alt+Esc.
Task Manager Window Appears,Then Click File
Option above,then Select Run New Task from the options that are
listed.
3.Create New Task Window appears and type "explorer" and press Ok. Screen Appears and Restart your laptop again .
You can try the following solution. It works perfectly. 1. Press Ctrl+alt+del 2. Select Task manager 3. Select File option above 4. Click Run new task 5. Type "explorer.exe" and press Enter You'll screen appears again!!

Mouse scrolling in vim scrolls terminal window

I am just getting started using Vim and came across :set mouse=a which I've found really useful for navigating a file, however for some reason when I try and scroll now it scrolls the whole terminal window and not just the vim window.
Then I scroll up and can see the terminal outside Vim
Any ideas on how to fix this? I've tried resetting mouse= and exiting and re entering vim.
The problem was that I had accidentally disabled Allow Mouse Reporting in error.
Checking Menu > View > Allow Mouse Reporting or Cmd + R has fixed it!
I think the cheap answer to your question is that you should be navigating through files in vim using motion commands, Ctrl + d, etc. It might seem slow at first, but it really becomes more natural down the line.
That said, if you are on Mac and using Terminal, you might need to hold the Fn to temporarily disable mouse support. (Check this out for reference: OS X Terminal Mouse Support
Also, you can always try MacVim, which supports mouse scrolling out of the box.
If neither of those solutions work for you, some more information would be helpful for troubleshooting, e.g., your operating system, recent changes to your vimrc, etc.

Focus follow mouse in vim

I am aware that the mousefocus option is only supposed to work in gVim. But I was wondering, if it's possible to have the console Vim switch to different windows in response to mouse clicks, would it be not possible to easily add following mouse movement to it, too?
I'm an xmonad user, I love the focus following the pointer feature, I do a lot of pdf viewing and browsing while writing in Vim, and I'd be so much happier if I didn't have to keep mentally switching back and forth between two different types of focus changing.
If that's completely not possible, I guess opening new Vim windows (as with :split) in new instances of the terminal is no easier to do?
It would not be at all simple to add this. Using the mouse within the terminal works by vim sending control codes to the terminal requesting that mouse actions be sent as part of the input stream. Terminals only report clicks not changes in the pointer position, so vim has no way of knowing where the mouse is.
With major changes it would likely be possible for a vim with X support to get pointer activity directly from the X server, but that would likely be reported by pixel rather than by character so further work would need to be done before it could determine which vim window is currently under the pointer.
set mouse=a
should do the trick but it will probably depend on your terminal emulator. See :help 'mouse'.
This works for Windows 7/Cygwin 32bit mintty/vim 7.3: (I DO NOT use gvim!)
Having installed this: http://ehiti.de/katmouse/, I can scroll the window under my cursor without having to have clicked to select a window, click-selecting of single vim-windows works, too. It does not pull the vim window to the foreground, if another window overlaps it, if that is what you desire. Still it can be scrolled without click-selecting it first.
So:
Check if there exists a software paket for your distribution, that implements your desired mouse behavior on the OS level. When this works for my self-compiled vim in cygwin, it might very well work with console vim on linux, too.
This post here serves as evidence, that it is possible at all, that is the reason this was not made a comment. When I am on linux again I will investigate this further and update this post, but that might take a while.
On set mouse=a: The vim help states you a need a terminal capable of handling mouse inputs, further information can be found here. :help ttymouse might also be helpful, i.e. if you have a xterm-compliant console, but :help term is set to something else.
UPDATE: (Freshly installed Fedora 19 with packages, no self-compiled stuff.)
Fedora 19 + se mouse=a = scrolling in single console vim window with several buffers opened next to each other independently works, too. Window manager used is LXDE.

Whack vim screen drawing errors

Something extremely weird is happening when I open files in vim, and I can't remember doing anything that would have caused it.
Weird behaviors include:
no text being visible until I highlight it in visual mode, at which point it is visible from thereon. ":redraw!" does not make anything visible.
line 1 missing
occasionally the cursor appears one line below where it is editing
statuses become permanent and scroll up from the bottom, rather than just redrawing at the bottom
the vim text not extending to the bottom of the vertically maximized window
I lack the reputation to post screenshots but I'll happily provide any other information that could help in a diagnosis.
ETA: Ah! My .vimrc specified a column/row size. I've removed that line, and so far things are behaving well. Thank you!
vim is terminal based, and errors like this happen when the terminal you are using does not match the terminal vim thinks you are using. Most people use vim with terminal emulators. This kind of thing can happen when you resize the emulator window and vim does not find out about it, or more rarely, when the terminal-identifying-string specified in the environment does not match the terminal emulator you are running.
Without more details about the platform on which you are running vim, it is hard to be more specific-- but as a tip: don't resize the emulator window after it is created but before running vim.
Terminal emulators are supposed to communicate size changes back to the program running within them, but this is not 100% foolproof, especially when you are logged in to a remote machine within the emulator.
If you're doing this from a UNIX (Linux et al), try running :!resize to force your terminal to re-adjust its size parameters. At the very least it'll tell you what the system thinks your window is sized to, which may not match its actual size.
I had a similar problem when using vim with bash. When I switched from bash to zsh, it gave redraw errors where, while I typed, the cursor or screen would appear to go down one row for every 10 characters I typed. Scrolling with arrow keys also caused major display problems along the same lines, but worse.
I had this line in my previous .vimrc, I believe it was to set the color for vim
set t_256
I changed it to set term=xterm=256color and the problem went away.

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