Fyne doesn't recognize my screens DPI

heytyshawn commented 1 year ago

Checklist

[X] I have searched the issue tracker for open issues that relate to the same problem, before opening a new one.
[x] This issue only relates to a single bug. I will open new issues for any other problems.

Describe the bug

When I run any fyne app the text is twice as big and blurry. I have another monitor plugged in and I have to move the window between screens to get it to scale down properly.

How to reproduce

Run your app.
Move the window to another monitor (that you have plugged in)
Move the window back

You may have to do it 3-4 times but it'll eventually scale it down properly.

Screenshots

Example code

package main

import (
    "fmt"
    "time"

    "fyne.io/fyne/v2/app"
    "fyne.io/fyne/v2/widget"
)

func main() {
    a := app.New()
    win := a.NewWindow("Title")

    clock := widget.NewLabel("")
    updateTime(clock)
    win.SetContent(clock)
    go func() {
        for range time.Tick(time.Second) {
            updateTime(clock)
        }
    }()
    win.Show()
    a.Run()
    fmt.Println("Program closed!")
}

func updateTime(clock *widget.Label) {
    clock.SetText(time.Now().Format("Time: 03:04:05"))
}

Fyne version

v2.3.0

Go compiler version

go1.19.3 windows/amd64

Operating system

Windows

Operating system version

Windows 11

Additional Information

SYSTEM MODEL: ASUS Tuf Gaming FX505DT OS: Windows 11 64 bit PROCESSOR: AMD Ryzen 5 3550H with Radeon Vega Mobile Gfx

heytyshawn commented 1 year ago

this is my first time opening an issue so let me know if i did something wrong

andydotxyz commented 1 year ago

Thanks for this. Just for clarity, the text is the right size - but the window is too large, is that correct?

heytyshawn commented 1 year ago

i'm sorry for the late reply, the window is the correct size I believe but the text is upscaled and blurry. I have to move it between monitors for it to sccale down.

heytyshawn commented 1 year ago

actually i after running the demo, the window is also too big at first and all the text are also upscaled and blurry when you launch the app. i screenshotted it over vs code so you could compare it to their text size. once i move the window back and forth between monitors everything scales down to the right size as shown in the screenshots

before

after

heytyshawn commented 1 year ago

Thanks for this. Just for clarity, the text is the right size - but the window is too large, is that correct?

I'm not sure if I have to use the reply feature in order to ping you

andydotxyz commented 1 year ago

Can you please describe the resolution, physical size and arrangement of each of your monitors?

Please can you switch fyne_Demo to the "Advanced" tab and quit it? Then load again. On the initial load read out the scale value, tell us the new value when you move to the other monitor, and then again what the value is when you move back?

Thanks!

jackbillstrom commented 1 year ago

@andydotxyz This one seems to turn cold, however I'm experiencing the same issue on my Ubuntu desktop.

When I run go run fyne.io/fyne/v2/cmd/fyne_demo@latest and visit the "Advanced tab" I get the following values (in barely a second)

Scale 1.00
Texture Scale 1.00

But then it flashes and turns into:

Scale 1.30
Texture Scale 0.77

I haven't activated any scaling on my Ubuntu 23.04 laptop.