MikeS <MikeS@fred.com> wrote:

On 10/05/2023 21:07, pinnerite wrote:

On Wed, 10 May 2023 18:06:23 -0000 (UTC)
Chris <ithinkiam@gmail.com> wrote:

pinnerite <pinnerite@gmail.com> wrote:

I have just replaced my 20 year old monitors for new wide screen tyoes. >>>
Windows 10 though still comes up in 4:3 format.

Can it be changed?

Of course! Right click the desktop and select "Display Settings" or
similar.

Even I could work that out. :)

So it shows Scale and layout 100% (recommended)
Display resolution 1289 x 960

Display Orientation - Landscape (greyed out)

Multiple displays (Didn't detect) irrelevant anyway

Advanced display settings - no changeable entries

This is a virtual Win-10.

Perhaps the limitation is because the driver is part of virtualbox.

Thank you.

Have you installed the correct VirtualBox Extensions?

Ditto. Be sure it is using VirtualBox's video driver. Also, check VM's settings.
--
"From infancy you have known the holy Scriptures, which are able to make you wise for salvation through faith in Christ Jesus." --2 Timothy 3:15. Slammy techy & worky Tuesday. Quiet cold mostly cloudy national shrimp hump day? Yay 4 LAL & 76ers!
Note: A fixed width font (Courier, Monospace, etc.) is required to see this signature correctly.
/\___/\ Ant(Dude) @ http://aqfl.net & http://antfarm.home.dhs.org.
/ /\ /\ \ Please nuke ANT if replying by e-mail.
| |o o| |
\ _ /
( )

--- SoupGate-Win32 v1.05
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On 5/10/2023 4:07 PM, pinnerite wrote:

On Wed, 10 May 2023 18:06:23 -0000 (UTC)
Chris <ithinkiam@gmail.com> wrote:

pinnerite <pinnerite@gmail.com> wrote:

I have just replaced my 20 year old monitors for new wide screen tyoes.

Windows 10 though still comes up in 4:3 format.

Can it be changed?

Of course! Right click the desktop and select "Display Settings" or
similar.

Even I could work that out. :)

So it shows Scale and layout 100% (recommended)
Display resolution 1289 x 960

Display Orientation - Landscape (greyed out)

Multiple displays (Didn't detect) irrelevant anyway

Advanced display settings - no changeable entries

This is a virtual Win-10.

Perhaps the limitation is because the driver is part of virtualbox.

Thank you.

There may be many combinations of things from a cosmetic
point of view in a VirtualBox Windows Guest. But it boils
down to a VESA-like display (similar to a raw frame buffer
in a sense). VESA resolutions include some 4:3 and some 5:4 items.

On 6.1.38 Linux Host, Windows Guest, you grab the corner of
the VirtualBox Window and pull it wider, and the screen resizes.
The "Display" panel in Windows, ends up with a custom resolution
entry shown in it.

I don't see a reason, right off hand, why you could not pull
that across two displays.

Also, another point about VirtualBox. The "Enable 3D acceleration"
does not do good things to the colours in the Windows Guest taskbar
and Notifications pane. The window works properly with the
"Enable 3D acceleration" off. And, as a bonus, if you run "dxdiag"
in Windows 10, the Display characteristics there shows the
three acceleration options as being operational. It means the
display really is compatible, when "Enable 3D acceleration" == OFF.

Paul

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pinnerite <pinnerite@gmail.com> wrote:

On Wed, 10 May 2023 18:06:23 -0000 (UTC)
Chris <ithinkiam@gmail.com> wrote:

pinnerite <pinnerite@gmail.com> wrote:

I have just replaced my 20 year old monitors for new wide screen tyoes.

Windows 10 though still comes up in 4:3 format.

Can it be changed?

Of course! Right click the desktop and select "Display Settings" or
similar.

Even I could work that out. :)

So it shows Scale and layout 100% (recommended)
Display resolution 1289 x 960

That's an unusual resolution. What's the resolution of the monitor?

Display Orientation - Landscape (greyed out)

Multiple displays (Didn't detect) irrelevant anyway

Advanced display settings - no changeable entries

This is a virtual Win-10.

Perhaps the limitation is because the driver is part of virtualbox.

Now that would have been very useful information to have in the OP.

Have you installed the VBox extensions in Windows? What happens when you
resize the Vbox window?

Thank you.

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On 5/10/23 10:58, pinnerite wrote:

I have just replaced my 20 year old monitors for new wide screen tyoes.

Windows 10 though still comes up in 4:3 format.

Can it be changed?

Usually, yes.

On my qemu-kvm virtual machines,
I can just drag the windows size around
and it tracks any weird size and shape
I give it. (My host if Fedora 37.)
Qemu-kvm spoils me!

TIA

Hi Pine,

Is it working okay on the host machine?

If it is, your VM needs its video driver
updated. Maybe choose a better virtual
graphic card for it too.

And make sure your guest drivers (or whatever
they are called) are installed and updated
on your guest.

Also make sure your host hypervisor
is also up to date.

-T

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On 5/11/2023 2:39 AM, Chris wrote:

pinnerite <pinnerite@gmail.com> wrote:

On Wed, 10 May 2023 18:06:23 -0000 (UTC)
Chris <ithinkiam@gmail.com> wrote:

pinnerite <pinnerite@gmail.com> wrote:

I have just replaced my 20 year old monitors for new wide screen tyoes. >>>>
Windows 10 though still comes up in 4:3 format.

Can it be changed?

Of course! Right click the desktop and select "Display Settings" or
similar.

Even I could work that out. :)

So it shows Scale and layout 100% (recommended)
Display resolution 1289 x 960

That's an unusual resolution. What's the resolution of the monitor?

Display Orientation - Landscape (greyed out)

Multiple displays (Didn't detect) irrelevant anyway

Advanced display settings - no changeable entries

This is a virtual Win-10.

Perhaps the limitation is because the driver is part of virtualbox.

Now that would have been very useful information to have in the OP.

Have you installed the VBox extensions in Windows? What happens when you resize the Vbox window?

You get weird sizes when you grab a corner and resize it.

Yet, that seems to work. The menu within Windows (guest) itself,
only has VESA values... if you did not mess with it.

Unlike a real graphics card, there are unlikely to be any
rules about divisible by 8 and divisible by 2.

Paul

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On 5/11/2023 3:28 AM, T wrote:

Hi Pine,

Is it working okay on the host machine?

If it is, your VM needs its video driver
updated.  Maybe choose a better virtual
graphic card for it too.

And make sure your guest drivers (or whatever
they are called) are installed and updated
on your guest.

Also make sure your host hypervisor
is also up to date.

-T

The 6.1.38 VBox has a WDDM 1.3 driver in the Guest Additions,
so it has a pretty good driver. DXDIAG claims all three
acceleration options are operating. Compositing works OK
(just keep the Experimental hardware acceleration turned off).
The hardware acceleration, causes the Task Bar to not render
properly, and that's a good reason to leave it off.

VBox is up in the 7.xx range now, so the one deployed
in the Package Manager is a stable one. They don't even
deploy 6.1.40 .

Benefits of VBox, is you don't need a "decoder ring" to run it :-)
I've run QEMU KVM several times now, and it's a roller coaster
ride.

Paul

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Chris wrote:

pinnerite wrote:

Display resolution 1289 x 960

That's an unusual resolution.

Probably a typo for 1280x960

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Paul <nospam@needed.invalid> wrote:

On 5/11/2023 2:39 AM, Chris wrote:

pinnerite <pinnerite@gmail.com> wrote:

On Wed, 10 May 2023 18:06:23 -0000 (UTC)
Chris <ithinkiam@gmail.com> wrote:

pinnerite <pinnerite@gmail.com> wrote:

I have just replaced my 20 year old monitors for new wide screen tyoes. >>>>>
Windows 10 though still comes up in 4:3 format.

Can it be changed?

Of course! Right click the desktop and select "Display Settings" or
similar.

Even I could work that out. :)

So it shows Scale and layout 100% (recommended)
Display resolution 1289 x 960

That's an unusual resolution. What's the resolution of the monitor?

Display Orientation - Landscape (greyed out)

Multiple displays (Didn't detect) irrelevant anyway

Advanced display settings - no changeable entries

This is a virtual Win-10.

Perhaps the limitation is because the driver is part of virtualbox.

Now that would have been very useful information to have in the OP.

Have you installed the VBox extensions in Windows? What happens when you
resize the Vbox window?

You get weird sizes when you grab a corner and resize it.

Yet, that seems to work. The menu within Windows (guest) itself,
only has VESA values... if you did not mess with it.

Unlike a real graphics card, there are unlikely to be any
rules about divisible by 8 and divisible by 2.

Yes, I am aware of all that. The OP seems to have done or not done
something to mess it up.

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Chris wrote:

Andy Burns <usenet@andyburns.uk> wrote:

Probably a typo for 1280x960

Ah, yes true. However, not a 4:3 as the OP stated.

err ...
1280/320 = 4
960/320 = 3

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Andy Burns <usenet@andyburns.uk> wrote:

Chris wrote:

pinnerite wrote:

Display resolution 1289 x 960

That's an unusual resolution.

Probably a typo for 1280x960

Ah, yes true. However, not a 4:3 as the OP stated. If that was the case
it'd be 1280x1024.

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Chris wrote:

Andy Burns <usenet@andyburns.uk> wrote:

Chris wrote:

pinnerite wrote:

Display resolution 1289 x 960

That's an unusual resolution.

Probably a typo for 1280x960

Ah, yes true. However, not a 4:3 as the OP stated. If that was the case
it'd be 1280x1024.

1280x1024 is 5:4
- i.e not really a true 4:3 aspect ratio

It's been years since I've seen a monitor running 1280x1024.
Maybe on those old 17 in. LCD(TFT?) displays?

--
...w¡ñ§±¤ñ

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On 5/11/23 10:26, ...winston wrote:

Chris wrote:

Andy Burns <usenet@andyburns.uk> wrote:

Chris wrote:

pinnerite wrote:

Display resolution 1289 x 960

That's an unusual resolution.

Probably a typo for 1280x960

Ah, yes true. However, not a 4:3 as the OP stated. If that was the case
it'd be 1280x1024.

1280x1024 is 5:4
 - i.e not really a true 4:3 aspect ratio

It's been years since I've seen a monitor running 1280x1024.
Maybe on those old 17 in. LCD(TFT?) displays?

Some old CRT monitors could handle 1280x1024, although on the one I had
that was the maximum resolution and it was blurry. I used 1024x768 (4:3)
on that.

--
Mark Lloyd
http://notstupid.us/

"Faith is an absolutely marvelous tool. With faith there is no question
too big for even the smallest mind." [Rev. Donald Morgan (b. 1933),
"Atheist theologian"]

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On 5/11/2023 11:26 AM, ...winston wrote:

Chris wrote:

Andy Burns <usenet@andyburns.uk> wrote:

Chris wrote:

pinnerite wrote:

Display resolution 1289 x 960

That's an unusual resolution.

Probably a typo for 1280x960

Ah, yes true. However, not a 4:3 as the OP stated. If that was the case
it'd be 1280x1024.

1280x1024 is 5:4
 - i.e not really a true 4:3 aspect ratio

It's been years since I've seen a monitor running 1280x1024.
Maybe on those old 17 in. LCD(TFT?) displays?

The monitor to the left of me, is 1280x1024 and is 5:4.
The monitor is made by NEC. "Multisync LCD1765"
Bought Mar 11, 2003. Still works.

The viewing angle suggests it may not be twisted nematic.
It also has a gloss finish.

VGA only, so used with various adapters over the years.
The video card has no VGA to drive it.

It might be using piezoelectric HV modules to
make the high voltage for the CCFL tubes (which
may last longer). The tubes are getting a bit
on the brownish side so the image is not
"original brightness".

Normally, the high voltage modules fail before
the tubes do. On this one, the CCFL tubes are likely
to be the limiting factor.

Paul

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Paul wrote:

On 5/11/2023 11:26 AM, ...winston wrote:

Chris wrote:

Andy Burns <usenet@andyburns.uk> wrote:

Chris wrote:

pinnerite wrote:

Display resolution 1289 x 960

That's an unusual resolution.

Probably a typo for 1280x960

Ah, yes true. However, not a 4:3 as the OP stated. If that was the case
it'd be 1280x1024.

1280x1024 is 5:4
  - i.e not really a true 4:3 aspect ratio

It's been years since I've seen a monitor running 1280x1024.
Maybe on those old 17 in. LCD(TFT?) displays?

The monitor to the left of me, is 1280x1024 and is 5:4.
The monitor is made by NEC. "Multisync LCD1765"
Bought Mar 11, 2003. Still works.

The viewing angle suggests it may not be twisted nematic.
It also has a gloss finish.

VGA only, so used with various adapters over the years.
The video card has no VGA to drive it.

It might be using piezoelectric HV modules to
make the high voltage for the CCFL tubes (which
may last longer). The tubes are getting a bit
on the brownish side so the image is not
"original brightness".

Normally, the high voltage modules fail before
the tubes do. On this one, the CCFL tubes are likely
to be the limiting factor.

   Paul

Hi, Paul.
Thanks for confirming LCD and 5:4 resolution(thought it applied to an
ancient era of devices and resolution use).
Mark also noted, the 5:4 aspect ratio was applicable to CRT devices.

--
...w¡ñ§±¤ñ

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Andy Burns <usenet@andyburns.uk> wrote:

Chris wrote:

Andy Burns <usenet@andyburns.uk> wrote:

Probably a typo for 1280x960

Ah, yes true. However, not a 4:3 as the OP stated.

err ...
1280/320 = 4
960/320 = 3

Ah, err... whoops!

Thanks for the correction.

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..winston <winstonmvp@gmail.com> wrote:

Chris wrote:

Andy Burns <usenet@andyburns.uk> wrote:

Chris wrote:

pinnerite wrote:

Display resolution 1289 x 960

That's an unusual resolution.

Probably a typo for 1280x960

Ah, yes true. However, not a 4:3 as the OP stated. If that was the case
it'd be 1280x1024.

1280x1024 is 5:4
- i.e not really a true 4:3 aspect ratio

It's been years since I've seen a monitor running 1280x1024.
Maybe on those old 17 in. LCD(TFT?) displays?

Yep. Had one of them.

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On 11/05/2023 16:26, ...winston wrote:

snip <

It's been years since I've seen a monitor running 1280x1024.
Maybe on those old 17 in. LCD(TFT?) displays?

My monitor, a 19" Acer AL1906 run is running at the recommended
resolution of 1280x1024 @ 60Hz.
Apparently it can run at 1280x1024 @ 75Hz, but I only ever look into
these settings if I have a need to.
I also don't upgrade for the sake of it. If it works, it's fine by me.

--
Regards
wasbit

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wasbit <wasbit@nowhere.com> wrote:

On 11/05/2023 16:26, ...winston wrote:

snip <

It's been years since I've seen a monitor running 1280x1024.
Maybe on those old 17 in. LCD(TFT?) displays?

My monitor, a 19" Acer AL1906 run is running at the recommended
resolution of 1280x1024 @ 60Hz.
Apparently it can run at 1280x1024 @ 75Hz, but I only ever look into
these settings if I have a need to.
I also don't upgrade for the sake of it. If it works, it's fine by me.

[OT:]

N.B. You (your nym) have been forged [1] in the comp.mobile.android
group, starting around May 7. The abuse seems to have stopped, but I
thought to let you know.

There was at least one other victim and probably two.

[1] The forgery was not all that 'good', but most people would probably
not spote the difference(s).

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Paul wrote:

On 5/11/2023 11:26 AM, ...winston wrote:

Chris wrote:

Andy Burns <usenet@andyburns.uk> wrote:

Chris wrote:

pinnerite wrote:

Display resolution 1289 x 960

That's an unusual resolution.

Probably a typo for 1280x960

Ah, yes true. However, not a 4:3 as the OP stated. If that was the
case it'd be 1280x1024.

1280x1024 is 5:4
- i.e not really a true 4:3 aspect ratio

It's been years since I've seen a monitor running 1280x1024.
Maybe on those old 17 in. LCD(TFT?) displays?

The monitor to the left of me, is 1280x1024 and is 5:4.
The monitor is made by NEC. "Multisync LCD1765"
Bought Mar 11, 2003. Still works.

Multisync LCD1970GX sitting to my right. Has DVI-D and VGA. Have a VGA to HDMI adaptor that works fine. Still use it. I think it was purchased in
2005.
--
<Bill>

Brought to you from Anchorage, Alaska

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On Wed, 10 May 2023 23:24:01 +0000
ant@zimage.comANT (Ant) wrote:

MikeS <MikeS@fred.com> wrote:

On 10/05/2023 21:07, pinnerite wrote:

On Wed, 10 May 2023 18:06:23 -0000 (UTC)
Chris <ithinkiam@gmail.com> wrote:

pinnerite <pinnerite@gmail.com> wrote:

I have just replaced my 20 year old monitors for new wide screen tyoes. >>>
Windows 10 though still comes up in 4:3 format.

Can it be changed?

Of course! Right click the desktop and select "Display Settings" or
similar.

Even I could work that out. :)

So it shows Scale and layout 100% (recommended)
Display resolution 1289 x 960

Display Orientation - Landscape (greyed out)

Multiple displays (Didn't detect) irrelevant anyway

Advanced display settings - no changeable entries

This is a virtual Win-10.

Perhaps the limitation is because the driver is part of virtualbox.

Thank you.

Have you installed the correct VirtualBox Extensions?

Ditto. Be sure it is using VirtualBox's video driver. Also, check VM's settings.

I didn't mean to cause such trouble! :)

1) Yes it was a typo. It should be 1280 x 960 which is 4:3
2) The VirtualBox version I have is 7.0.8 and the extensions match.
3) VirtuaBox frame fits the entire screen (1920 x 1080)
4) The windows image sits in the middle and cannot be stretched.
I managed with a 17.4 inch screen for over 20 years so ....

Thanks all,

Alan




--
Mint 21.1, kernel 5.15.0-67-generic, Cinnamon 5.6.7
running on an AMD Phenom II X4 Black edition processor with 16GB of DRAM.

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On 5/12/2023 1:20 PM, pinnerite wrote:

On Wed, 10 May 2023 23:24:01 +0000
ant@zimage.comANT (Ant) wrote:

MikeS <MikeS@fred.com> wrote:

On 10/05/2023 21:07, pinnerite wrote:

On Wed, 10 May 2023 18:06:23 -0000 (UTC)
Chris <ithinkiam@gmail.com> wrote:

pinnerite <pinnerite@gmail.com> wrote:

I have just replaced my 20 year old monitors for new wide screen tyoes. >>>>>>
Windows 10 though still comes up in 4:3 format.

Can it be changed?

Of course! Right click the desktop and select "Display Settings" or
similar.

Even I could work that out. :)

So it shows Scale and layout 100% (recommended)
Display resolution 1289 x 960

Display Orientation - Landscape (greyed out)

Multiple displays (Didn't detect) irrelevant anyway

Advanced display settings - no changeable entries

This is a virtual Win-10.

Perhaps the limitation is because the driver is part of virtualbox.

Thank you.

Have you installed the correct VirtualBox Extensions?

Ditto. Be sure it is using VirtualBox's video driver. Also, check VM's settings.

I didn't mean to cause such trouble! :)

1) Yes it was a typo. It should be 1280 x 960 which is 4:3
2) The VirtualBox version I have is 7.0.8 and the extensions match.
3) VirtuaBox frame fits the entire screen (1920 x 1080)
4) The windows image sits in the middle and cannot be stretched.
I managed with a 17.4 inch screen for over 20 years so ....

Thanks all,

Alan

[Picture]

https://i.postimg.cc/Jnrj0zcw/VBOX-slightly-modal-DISPLAY-adjustment-options.gif

If your session is not allowing you to get what you want, there are
two adjustment options in the Guest window menus to help.

But I cannot describe what they do, in 25 words or less.

In the Windows Guest, right click the desktop and select the "Display" item. Try to select a lower resolution value, as a temporary measure.

Next, use the "Auto-Resize Guest Display". Now, the window
should be smaller than your monitor. Grab the corner and drag it
to resize. Inside the Guest, the driver will be adding a new
value to the available display resolutions, which match what
you're doing by grabbing the corner of the Guest frame.

And don't panic, if grabbing the corner of the window and moving
it, does not cause Windows Guest display to resize. Use the
"Auto-Resize Guest Display" and try again.

Some combination of those controls, you'll (eventually)
get what you want.

Paul

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On 12/05/2023 16:41, Frank Slootweg wrote:

wasbit <wasbit@nowhere.com> wrote:

On 11/05/2023 16:26, ...winston wrote:

> snip <

It's been years since I've seen a monitor running 1280x1024.
Maybe on those old 17 in. LCD(TFT?) displays?

My monitor, a 19" Acer AL1906 run is running at the recommended
resolution of 1280x1024 @ 60Hz.
Apparently it can run at 1280x1024 @ 75Hz, but I only ever look into
these settings if I have a need to.
I also don't upgrade for the sake of it. If it works, it's fine by me.

[OT:]

N.B. You (your nym) have been forged [1] in the comp.mobile.android
group, starting around May 7. The abuse seems to have stopped, but I
thought to let you know.

There was at least one other victim and probably two.

[1] The forgery was not all that 'good', but most people would probably
not spote the difference(s).

Thanks for letting me know.

--
Regards
wasbit

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 5/12/2023 1:20 PM, pinnerite wrote:

I didn't mean to cause such trouble! :)

1) Yes it was a typo. It should be 1280 x 960 which is 4:3
2) The VirtualBox version I have is 7.0.8 and the extensions match.
3) VirtuaBox frame fits the entire screen (1920 x 1080)
4) The windows image sits in the middle and cannot be stretched.
I managed with a 17.4 inch screen for over 20 years so ....

Thanks all,

Alan

I used a Lubuntu 18.04 and Virtualbox 5.2.42 for this test.

[Picture]

https://i.postimg.cc/kgjTYvQD/virtualbox-5242-full-screen-and-back.gif

That's roughly an attempt at 3840x2160.

In 5.2.42 (no VboxSVGA), there seems to be a 1920x1440 limitation.
A note in a bugtracker, notes that an earlier version of VirtualBox,
the developer modded the max resolution so an Apple Retina display
would work, but I suspect that change was backed out later.

In the picture you can see I got 3840x2160 from it. These are some
of the ingredients. The "official way" to add a resolution, is like this.

VBoxManage.exe setextradata "Windows 10" CustomVideoMode1 "3840x2160x32" <=== 5.2.42 limited 1920x1440

Now, that basically edits one line in the .vbox file. There
are actually several lines in there that matter (but they
still cannot really override the 1920x1440 limit).

</MediaRegistry>
<ExtraData>
<ExtraDataItem name="CustomVideoModel" value="3840x2160x32"/>
<ExtraDataItem name="GUI/LastGuestSizeHint" value="3840,2160"/>
<ExtraDataItem name="GUI/LastNormalWindowPosition" value="91,110,3840,2204"/>
</ExtraData>
<Hardware>

If you go to Windows 10 and use the Display panel and review the
properties of the graphics, initially it might show 3840x2160. But
if you ask Windows 10 to act on the setting, VirtualBox "sanitizes"
the setting attempt and forces the setting back to 1920x1440.

If, however, you lay the groundwork, as in the above text lines, then do

<right-control> F

for Full Screen operation, again, the operation will fail, the screen
will turn black. Now, press the full screen toggle again.

<right-control> F

The resolution now comes back as 3840x2160. It did not get sanitized.

But the thing is, if you so much as touch the frame of the window,
or do just about any desktop operation, it's going to force it back
to 1920. So this attempt, remains a "bar bet" and not a practical thing,
in VBOX 5.2.42 (Win10 Guest on Linux host).

Paul

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 5/15/2023 10:36 AM, Mr. Man-wai Chang wrote:

On 11/5/2023 1:58 am, pinnerite wrote:

I have just replaced my 20 year old monitors for new wide screen tyoes.

Windows 10 though still comes up in 4:3 format.

Can it be changed?

You didn't mention the brand and model of your display adapter!

LinuxMint is likely the Host OS.

The hosting software is VirtualBox.

The Guest OS is Windows 10.

The Guest video driver, depends on whether VirtualBox Guest Additions
have been installed in the Guest OS. Without Guest Additions,
the "Microsoft Basic Display Adapter" driver installs. It has 4:3 resolutions. If you install Guest Additions, the WDDM Driver for Windows8+
is installed, which has very similar resolutions to "Microsoft Basic Display Adapter".

Looks like this.

[Picture]

https://i.postimg.cc/qR6GJ77r/Win10-Guest-On-Linux-Mint.gif

Paul

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 11/5/2023 1:58 am, pinnerite wrote:

I have just replaced my 20 year old monitors for new wide screen tyoes.

Windows 10 though still comes up in 4:3 format.

Can it be changed?

You didn't mention the brand and model of your display adapter!

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)