82
votes
Accepted
What is the difference between screen with resolution 2560*1440 with zoom - 200% and screen with resolution 1280*720?
It looks like you are referring to "zoom 200%" in some OS settings.
When you use 1280*720 everything is rendered in this resolution and then scaled up as a bitmap (by your monitor). The final image ...
- 74.3k
48
votes
Accepted
How does VGA work with resolutions higher than the maximum resolution?
"VGA" has two meanings:
A specific graphics card, the IBM Video Graphics Array from 1987, which supported resolutions up to 640×480 (now known as the "VGA" resolution), and which ...
- 454k
40
votes
Change screen resolution of Ubuntu VM in Hyper-V
I'm running Ubuntu 22.04 and only needed the following PowerShell command:
set-vmvideo Ubuntu -horizontalresolution:1920 -verticalresolution:1080 -resolutiontype single
(Replace Ubuntu with your VM ...
- 501
38
votes
Accepted
Change screen resolution of Ubuntu VM in Hyper-V
Below worked for me. Tested on Ubuntu 20.04 | Host Windows 11.
Open grub file.
sudo nano /etc/default/grub
Change value of GRUB_CMDLINE_LINUX_DEFAULT with below. Replace 3840x2160 with your highest ...
- 496
37
votes
Windows 10 v1803: How to change "Active signal resolution" to match "Desktop resolution"
I had the same problem, and for me at least clicking on "Display adapter properties for Display 2" let me pick the right resolution.
I went to Settings>System>Display>Advanced ...
- 471
33
votes
Accepted
Why does the screen display dead pixels at 144 Hz, but not at 60 Hz?
A contact field issue. Avoid using 144 Hz and plan to replace the display panel.
What you show are essentially not dead pixels. Dead pixels are individual pixels, not the entire line. What you see is ...
- 13.5k
29
votes
What is the difference between 4K, UHD and QHD? Do we agree on one official resolution?
Giacomo1968’s answer is correct, but stated briefly from common usage (among people not lying):
4k is ambiguous and may refer to 3840 x 2160 or 4096 x 2160, or potentially others.
UHD (in this context)...
- 391
29
votes
Accepted
Laptop showing resolution beyond its normal maximum, when plugged into a screen
It is because it is doing screen mirroring and assuming that the external display is your "primary" display. As a result it is rendering at the maximum "native" resolution and then scaling it down for ...
- 92.7k
28
votes
How can I confirm the "change screen resolution dialog" in Windows 10 using keyboard only?
Press Tab, then Enter or Space.
- 381
28
votes
Accepted
What is it called when a monitor adds black areas to the displayed content because the resolution doesn't match?
What is this phenomena called?
It is not quite 100% clear what you are asking about, but I guess the best answer would be "basic geometry". In television and movies, it is called ...
- 3,322
27
votes
Is there a way to turn an HD TV into a smaller computer monitor?
This is a general answer that applies to using TVs as computer monitors in general.
If the TV has a digital input (HDMI, DisplayPort or DVI) use that. Never use the VGA input on a TV unless there is ...
- 31.5k
26
votes
Change the default resolution of Remote Desktop Connection (mstsc)
You can also edit the .rdp file directly. I usually just open it in notepad. You can edit and save just like any regular text file. The properties that I most commonly edit are desktopwidth, ...
- 361
25
votes
Accepted
Can a laptop with 1080p native resolution output 4K signal to an external monitor?
Yes, and a longer probably Yes.
Yes #1
The output on the laptop screens completely independant of the output on attached monitors. It is no problem to have a very low resolution laptop screen (say ...
- 65.2k
24
votes
Windows RDP -- Possible to resize resolution on-the-fly?
I am just putting this here for visibility, full credit to @Sevin7 for their comment above:
Use the Microsoft Remote Desktop app from the windows store instead of the version baked into windows. It ...
- 412
23
votes
Accepted
How can two laptops have the same resolution and screen size but different pixel densities?
They can't, some parameters have been reported incorrectly. You can verify this yourself as follows.
There is a convenient pixel density calculator at this website. The calculation is trivial (from ...
- 4,440
22
votes
Setting display resolution beyond 1024x768 with headless Windows 10?
I experienced something similar when trying to stream from a computer that only had network and power connected; here's what worked for me (source):
Open regedit, navigating to
HKLM\SYSTEM\...
- 321
22
votes
How does VGA work with resolutions higher than the maximum resolution?
VGA is an older signalling standard where a pixel is transmitted on
only three pins by using analog voltages.
Each of these voltages is represented as a voltage level between
0 volts (no intensity) ...
- 481k
21
votes
Monitor not displaying native resolution
In my case, the monitor itself needed to 'reboot'.
Disconnect the monitor from the mains power and disconnect the display cable from the back of the pc/laptop. Wait about 30 seconds. Reconnect the ...
- 311
21
votes
Split monitor into virtual monitors
I use DisplayFusion and while the screen splitting functionality works well, it can't overcome applications (games, browser videos that you make "full screen", etc) that tell Windows they want to go ...
- 319
21
votes
I can't set full HD resolution in my Lenovo
You may have inadvertently purchased the HD model with a max resolution of 1366x768.
According to the specifications, the HD model has a resolution of 1366x768, and the FHD has a specification of ...
- 27.9k
20
votes
Finding Image resolution in PDF file?
slhck's answer and scruss' comment deserve to be updated : pdfimages now (at least since version 0.26.5) explicitely lists x-ppi and y-ppi. Here is an sample output :
$ pdfimages -list example.pdf
...
19
votes
Ubuntu on Virtualbox screen is too small, can't change resolution
In order to make the screen bigger, follow the next steps.
Start the VM
Click in Devices > Insert Guest Additions CD image...
You'll see a CD icon in your Favorites (left side). Double click on it
...
- 1,417
17
votes
Accepted
Mouse cursor on multiple screens with different PPI
Virtual wall
LittleBigMouse fixes the virtual wall problem in its current version, as Flexo013 pointed out in his answer
Continuous Mouse ($3.79 on ms store) also fixes the issue by allowing to set ...
- 570
16
votes
Scale < 100% on Windows 10
You must use a registry hack to get scaling values below 100%:
Open the Registry, navigate to HKCU\Control Panel\Desktop, and double-click on LogPixels to edit. If there is no LogPixels, create a new ...
- 41.8k
15
votes
High Resolution Screenshot
This can be achieved in Chrome as of v59:
Announcement in the developer blog
Video tutorial
Summary of steps (if you prefer text):
Open Developer tools
Toggle the device toolbar
Set the desired ...
- 4,203
15
votes
Accepted
How to change VM resolution to higher Hyper-V?
One way to change your resolution is via the following:
Open Terminal
Enter sudo vi /etc/default/grub
Find the line GRUB_CMDLINE_LINUX_DEFAULT
Modify the line with the resolution you want, ex: ...
- 1,777
14
votes
Accepted
Cloning a 4K panel to a 1080p monitor
Recently I found a nice way to solve this. Im answering on my own question so everybody having the issue can read it. I now use a 4K screen getting the full 3840x2160 px output from my GTX 970 and a ...
- 441
14
votes
Windows 10 v1803: How to change "Active signal resolution" to match "Desktop resolution"
Wasted a lot of time on this till I found a general solution that works with all GPUs:
go to Advanced Display Settings -> Display adapter properties for display -> List All Modes
Select any lower ...
- 166
13
votes
How to change screen resolution of VNC server without restarting it?
With TigerVNC Windows VNC client (viewer) auto resolution works out of the box. No need to set anything anywhere, on the client or on the server. When you first connect to your server, the resolution ...
- 387
13
votes
Setting display resolution beyond 1024x768 with headless Windows 10?
It appears that with recent Windows versions the regedit paths had changed. Keys starting with SIMULATED are no longer showing up, but NOEDID are the ones to use (as of October 2020).
I managed to set ...
- 231
Only top scored, non community-wiki answers of a minimum length are eligible