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Q&A

Welcome to the Power Users community on Codidact!

Power Users is a Q&A site for questions about the usage of computer software and hardware. We are still a small site and would like to grow, so please consider joining our community. We are looking forward to your questions and answers; they are the building blocks of a repository of knowledge we are building together.

General Q&A about software and hardware usage

Filters (None)
22%
+0 −5
How can I record merely heads in a video call?

To save Hard Drive space, how can I record merely the green rectangles below containing the heads of my family? I waste bytes if I record the areas crossed out in orange, like the backgrounds and ...

0 answers  ·  posted 1y ago by TextKit‭  ·  edited 1y ago by TextKit‭

60%
+1 −0
Adding option to pandoc call from RStudio

If ones uses RStudio to convert a rmarkdown file to pdf, RStudio will call pandoc with arguments like this: /opt/homebrew/bin/pandoc +RTS -K512m -RTS Untitled.knit.md --to beamer --from markdown+a...

2 answers  ·  posted 1y ago by samcarter‭  ·  last activity 1y ago by Canina‭

57%
+2 −1
Why doesn't permanently deleting emails dwindle the .ost's size, absent new emails?

My old backup email account never receives incoming emails. In Microsoft Outlook, I deleted at least 50 emails in the Inbox and Sent Items, then emptied "Deleted Items", but the .ost for this email...

0 answers  ·  posted 1y ago by TextKit‭  ·  edited 1y ago by TextKit‭

42%
+1 −2
Native Folder Synchronization on Android

What technically (or contractually) prevents cloud storage providers from implementing native support for folder synchronization in their Android apps?

0 answers  ·  posted 1y ago by AZeed‭  ·  reopened 1y ago by samcarter‭

66%
+2 −0
How to make selection and overwrite from register all from ex mode

MWE line 1 line 2 line 3 line 4 line 5 line 6 line 7 Go to "line 4": /line 4 ENT. Delete into register: dd. Replace everything with register using only ex mode. (Non-ex equivalent: gg...

1 answer  ·  posted 1y ago by mcp‭  ·  last activity 1y ago by Quasímodo‭

77%
+5 −0
How to copy files preserving one directory up

Have mkdir -p d1/d1_sd1/ d2/d2_sd1/ touch d1/d1_sd1/f1.txt d2/d2_sd1/f1.txt . ├── d1 │   └── d1_sd1 │   └── f1.txt └── d2 └── d2_sd1 └── f1.txt 4 directories, 2 files ...

1 answer  ·  posted 1y ago by mcp‭  ·  last activity 1y ago by mcp‭

60%
+1 −0
How to redraw screen putting specific line at top without moving cursor

MWE 5 4 3 2 1 0 Go to the end of the file: G. Question Using spacemacs, how do I put the line with 3 at the top of the screen without moving the cursor? With moving the cursor that wou...

1 answer  ·  posted 1y ago by mcp‭  ·  last activity 1y ago by mcp‭

75%
+4 −0
Setting a cookie with a userscript

Background: I'm using a websites which uses a pin code locally stored in a cookie for login. As firefox does not recognise the field to input the pin as a password field, it won't store the passwo...

2 answers  ·  posted 1y ago by samcarter‭  ·  last activity 1y ago by samcarter‭

71%
+3 −0
How do I make Xbox stop telling me that I have a free game pass on Windows 10?

On my Lenovo Legion, every single time I boot up Windows 10, I get confronted by an Xbox app popping up and telling me that I have a free game pass or something and to log in to claim it. Every tim...

1 answer  ·  posted 1y ago by Mithical‭  ·  last activity 1y ago by Olin Lathrop‭

71%
+3 −0
Outlook on the Web - Remove bold 'sender' heading row

While using Outlook on the web, when I sort mail by sender, my Inbox shows a heading row containing just the sender name in bold, with any emails from that sender below. How do I turn off those he...

0 answers  ·  posted 1y ago by mcalex‭

30%
+1 −5
Is a fanless PC good? [closed]

I would like to buy a fanless PC. Is a fanless PC good?

0 answers  ·  posted 1y ago by mccoy.rameer‭  ·  closed 1y ago by Canina‭

71%
+3 −0
Measure distance in pixels on screen

I'd like to draw a rectangle on the screen and get the dimensions in pixels of that rectangle. A bit like a ruler in order to measure the distance on screen. I'm using Sway version 1.8 on Arch Lin...

1 answer  ·  posted 1y ago by Matthias Braun‭  ·  last activity 1y ago by Matthias Braun‭

60%
+1 −0
Windows 11 ─ how to change default UAC shield icon

I want to manage the customization of the small icon in the right of any shortcut started with admin privilegies I already know how to change the arrow in shortcut: HKEY_LOCAL_MACHINE\SOFTWARE\...

0 answers  ·  posted 1y ago by TOVOT‭

75%
+4 −0
Commenting on multiple selections in Google Docs

How can one add one comment to two or more selections in Google Docs? It is clearly technically possible, since when you copy a section with a comment, any pasted text will link to the same commen...

1 answer  ·  posted 1y ago by Moshi‭  ·  last activity 1y ago by qohelet‭

27%
+1 −6
Free Windows 10 software for trimming videos (e.g. .mp4) from 2-10 GB?

Can you please recommend free software for my Windows 10 laptop, to trim videos from 2 to 10 GB? I've tried Lightworks, ShotCut. But they keep freezing after I apply my trim, and I must force-clos...

2 answers  ·  posted 3y ago by TextKit‭  ·  last activity 1y ago by mcalex‭

71%
+3 −0
How to make git push/pull work again?

I have a bunch of GIT repositories on my laptop, which have their "origin" set to repositories on GitHub. After a commit in a local repository, I do git push -u origin master to update the remot...

1 answer  ·  posted 1y ago by Olin Lathrop‭  ·  edited 1y ago by Moshi‭

git
60%
+1 −0
Move folder one level up on Thunderbird

I accidentally moved folder De under folder Laun in Thunderbird's folder side bar: How can I move De back to the same level as Laun and Archive? If I drag it and release it just between the oth...

1 answer  ·  posted 1y ago by Quasímodo‭  ·  edited 1y ago by Canina‭

50%
+0 −0
In Word, how can I set 'Header Position from Top' and 'Footer Position from Bottom' simultaneously for all pages?

I don't have time to set, or change, the 'Header Position from Top' and 'Footer Position from Bottom' for each page individually and manually! How can I set them all at once, in one fell swoop? Pl...

0 answers  ·  posted 1y ago by TextKit‭  ·  edited 1y ago by TextKit‭

62%
+3 −1
How to jump to original mark after overwriting

MWE In Vim: mm. o ESC mm (by accident, meant mn). Question How do I jump to the original mark m set in action 1.? Edit I'm sorry, what I meant was you issue mm when you meant 'm. (It al...

1 answer  ·  posted 1y ago by mcp‭  ·  edited 1y ago by mcp‭

66%
+2 −0
How to track down target atom for svg to pass to xclip

Background The xclip manual mentions use of targets: -t, -target specify a particular data format using the given target atom. With -o the special target atom name "TARGETS" can be used t...

0 answers  ·  posted 1y ago by mcp‭

60%
+1 −0
What in the HTML is preventing CutyCapt from capturing Altair output

Question I am using Altair to generate plots using python and pandas. What is preventing CutyCapt from capturing the plot in the html output? CutyCapt writes a blank png. MWE I am outputting ...

0 answers  ·  posted 1y ago by mcp‭  ·  edited 1y ago by mcp‭

75%
+4 −0
What is the magit equivalent of git switch branch?

What is the magit equivalent of git switch branch? I'm particularly interested in the situation where you cloned a repo, and want to checkout a remote branch locally. From the commandline that u...

0 answers  ·  posted 1y ago by mcp‭  ·  edited 1y ago by mcp‭

60%
+1 −0
How to add vertical line in the middle of two marks on image

Have This .png image of a plot: Want To add vertcal lines between the groupings: (0, 1, 2) LINE (3, 4, 5) LINE (6, 7, 8) I want to place the lines exactly in the middle of the grouping boun...

1 answer  ·  posted 1y ago by mcp‭  ·  last activity 1y ago by samcarter‭

71%
+3 −0
How to blockquote region in Emacs

Question Is there a command in emacs for "email quoting" an autofilled paragraph? Have Nullam eu ante vel est convallis dignissim. Fusce suscipit, wisi nec facilisis facilisis, est dui fermentu...

1 answer  ·  posted 1y ago by mcp‭  ·  last activity 1y ago by mcp‭

50%
+1 −1
How can I see old photos, so far down a Facebook page that scrolling down freezes the browser?

One relative has taken so many photos, that scrolling down to his pictures before 2020 takes too much time and effort. But once scrolling reaches his pictures uploaded in 2020, my browser froze. I ...

1 answer  ·  posted 1y ago by TextKit‭  ·  edited 1y ago by TextKit‭

40%
+0 −1
Does embedding an image, in an email, debauch its appearance or quality?

My bosses and colleagues prefer images to be embedded, rather than attaching an image to an email — not least because attachments can be wrongly flagged as spam, and because it's easier to see embe...

1 answer  ·  posted 1y ago by TextKit‭  ·  edited 1y ago by Quintec‭

80%
+6 −0
How to get rid of the ugly search icon rolled out in today's Windows 10/11 update?

Just updated Windows (2022-06-17, version Windows 10 Pro 21H2) and now there's an eye-catching, ugly icon in the taskbar, which graphics suggests that Windows' intended target audience is children ...

1 answer  ·  posted 2y ago by Lundin‭  ·  edited 2y ago by Lundin‭

42%
+1 −2
In Microsoft Word, how do I systematically add space before the Footnote Superscript?

Undoubtedly, it's too unproductive to add spaces manually before each Footnote SuperScript. I clicked on Manage Styles, but see no option to add such spaces PRODUCTIVELY. Word grayed out "Paragr...

0 answers  ·  posted 2y ago by TextKit‭  ·  edited 2y ago by TextKit‭

28%
+0 −3
Should I now delete backup files already stored on my SSD C Drive? Should I use free space on SSD C Drive?

On both my desktop and laptop, my Windows 11 C drives are on a 500 GB SSD. My D drives are on a 1 TB HDD. Desktop A Microsoft Support Engineer noticed that I backed up 300 GB of family videos on ...

1 answer  ·  posted 2y ago by TextKit‭  ·  last activity 2y ago by Lundin‭

75%
+4 −0
How to quickly change the maximum processor state in Windows 10?

I am using a Lenovo Legion laptop and one thing I have noticed is the fan working at full speed from time to time. This seems to be related to the CPU jumping to a high frequency to deliver more pr...

1 answer  ·  posted 2y ago by Alexei‭  ·  last activity 2y ago by Alexei‭

40%
+0 −1
In Word's Find and Replace, when to use # vs. (0, 9)? [closed]

I need to remove all the red text below with ‘Find and Replace’, but keep all green text. Input 1:23 Keep this line 1. 4:56 Keep this line 2. Snag Inputting ^#:^#^# removed the red text, b...

0 answers  ·  posted 2y ago by TextKit‭  ·  closed 2y ago by samcarter‭

81%
+7 −0
Using "Print using system dialogue" as default in Firefox

I'd like Firefox to automatically use the "Print using the system dialogue" setting: In older versions, I could use print.tab_modal.enabled = false in about:config to automatically get the ...

2 answers  ·  posted 2y ago by samcarter‭  ·  edited 2y ago by Alexei‭

77%
+5 −0
How do I get the Pixel (Android 12) to show the incoming phone number for probable spam?

I have a Pixel 5A running Android 12 (I assume stock Android because it's a Pixel, but I don't know how to tell). The phone app that came with it reports probable spam or scam calls by labeling th...

0 answers  ·  posted 2y ago by Monica Cellio‭

86%
+11 −0
Computer whining (~16khz noise coming from somewhere in the case)

My computer makes a very annoying high pitched noise under medium loads. I have been chasing this problem for a few days now and would appreciate any input you might have. System details: OS: Lub...

2 answers  ·  posted 2y ago by Darth_Muldoon‭  ·  last activity 2y ago by Olin Lathrop‭

80%
+6 −0
reduce gzip archive size if files are similar

I'd like to use the similarities between files to produce a gzip archive that's as small as possible. On gzip's Wikipedia entry it says that: gzip is not to be confused with the ZIP archive for...

1 answer  ·  posted 2y ago by Matthias Braun‭  ·  last activity 2y ago by Canina‭

75%
+4 −0
How do I fix Firefox fonts having extra spacing and weird numbers on Ubuntu?

After upgrading one of my computers to Firefox 99.0.1 on Ubuntu, it's started rendering some fonts—specifically DejaVu Sans and Arial, although there may be others—incorrectly. The actual words are...

1 answer  ·  posted 2y ago by Ullallulloo‭  ·  last activity 2y ago by Ullallulloo‭

75%
+4 −0
Android phone, name associated with incoming call?

This is regarding the regular phone app that came with my Android phone. Under App Info, it says App installed from Google Play Store and version 78.0.437276706. I haven't done anything deliberat...

1 answer  ·  posted 2y ago by Olin Lathrop‭  ·  edited 2y ago by Olin Lathrop‭

71%
+3 −0
Install Emacs with native compilation support on macOS

Emacs 28.1 has support for native compilation of Emacs Lisp, which is supposed to give a significant speed boost over regular Emacs Lisp. However, to take advantage of it, Emacs must be compiled w...

0 answers  ·  posted 2y ago by NateEag‭

66%
+2 −0
Block certain namespace webpages for anonymous users (non registered users) with some Information Security method

Per each general audience webpage (i.e. any main-namespace page such as an article page or Category: page), the MediaWiki content management system creates about 10 or 100 or 1,000 if not more webp...

0 answers  ·  posted 2y ago by deleted user

37%
+1 −3
Why's "Merge Layers" faded greyed out? Then how can I merge or combine these 3 colored areas?

Hello. Any Photoshop experts here? As practice, I am trying COLOR my black chair BLUE. As you can see from screenshots, I missed 2 spots that I had to color separately. But I don't want 3 separate...

1 answer  ·  posted 2y ago by Este‭  ·  last activity 2y ago by Ullallulloo‭

33%
+0 −2
Barring Undo — without reselecting and REcoloring the object — how can I UNcolor these blue tresses?

I can't use Undo, because I noticed these 2 tresses of blue hair LONG AFTER I used the Object Selection Tool. How can I restore the original hair color, without restarting from scratch? Do not ask...

0 answers  ·  posted 2y ago by Este‭  ·  edited 2y ago by Este‭

57%
+2 −1
Safe to delete [e0fe99ff-3983-409E-97D9-AA6223751C46].msi?

A Microsoft T3 Support Engineer confirmed that this .msi for a third party program, not Microsoft, because it doesn't appear in the Roaming > Microsoft folder. What's this .msi for? Can I safel...

2 answers  ·  posted 2y ago by Este‭  ·  edited 2y ago by Este‭

77%
+5 −0
Matrix solution software

I am trying to invert the matrix in the picture. I had done mistakes 3 times. And I heard someone in Khanacademy were saying "let computer do the hard tasks". I was trying to find better Matrix s...

3 answers  ·  posted 2y ago by Anonymous‭  ·  edited 2y ago by Quasímodo‭

71%
+3 −0
How to download all mail in Claws-mail

With Claws-mail, I want to be able to read all my mail even if offline, but the only way I know to download mail contents is by manually selecting it in the mail list. Additionally, navigating feel...

2 answers  ·  posted 2y ago by Quasímodo‭  ·  last activity 2y ago by dsr‭

33%
+1 −4
How can I command my Lenovo laptop — NOT a ThinkPad — to stop charging the battery, at a maximum cap level of my choice?

Update, after Olin Lathrop's answer. I phoned Lenovo Technical Support to ask why the "Battery Charge Threshold" in Olin Lathrop's answer doesn't appear in my Lenovo Vantage. Their engineer acces...

1 answer  ·  posted 2y ago by TextKit‭  ·  edited 2y ago by TextKit‭

81%
+7 −0
Increase contrast between current and other tabs in Firefox

In most recent Firefox versions I find it hard to distinguish the current tab at a glance, especially if the screen is set at low brightness. That is because the colors used for the current and oth...

2 answers  ·  posted 2y ago by Quasímodo‭  ·  last activity 2y ago by Quasímodo‭

75%
+4 −0
Control whether Firefox renders web pages in dark or light mode

It has been reported that, if on a dark theme in KDE, Firefox automatically renders some websites that support it (e.g. Duckduckgo does, but Codidact doesn't) in dark mode. How can I better contro...

1 answer  ·  posted 2y ago by Quasímodo‭  ·  last activity 2y ago by Quasímodo‭

75%
+4 −0
All file types associated with an application

How can I get a list of all file types for which a certain application is the default program? I know that I can get a list of all file types an application is capable of opening from the info.pli...

0 answers  ·  posted 2y ago by samcarter‭  ·  edited 2y ago by samcarter‭

50%
+2 −2
How to add a partition of Disk 1, to another partition of Disk 0?

I use Windows 10. How do I add the yellow partition to the red one, to increase the size of red? Green (833 GB) must be left alone, and must not be changed or moved.

1 answer  ·  posted 2y ago by TextKit‭  ·  last activity 2y ago by elgonzo‭

50%
+4 −4
Alternative to Google Adsense

I'm starting a small site with some online tools. Tried to include Google Adsense but I initially got rejected because the site was still on construction. Yet I've seen in the forums that they are...

0 answers  ·  posted 2y ago by nelson777‭  ·  edited 2y ago by Quasímodo‭