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Screen resolution



 
 
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  #1  
Old November 15th 15, 04:54 AM posted to alt.comp.os.windows-8
Stan Brown
external usenet poster
 
Posts: 2,904
Default Screen resolution

I have an Asus Zenbook laptop, running Windows
8.1. Screen resolution is set to 1920x1080,
which is the recommended size. There's no
external monitor, and I've never connected
one.

But programs are not seeing that resolution.
For example, I used a test image in Irfanview,
and a 1280x720 image took up the whole screen
exactly. (Irfanview is set to show images at
100%.) I don't have Magnifier running, or
anything like that.

It took me a while to recognize this, because
the screen looks really sharp and crisp, but
as far as I know it's been this way since I
got this laptop

When I maximize a window, it takes the visible
screen and doesn't overflow past the screen
limits.

This is Windows 8.1. Intel HD Graphics 5300.
When I bring up Intel HD Graphics in Control
Panel, display settings are Basic and
Advanced, but when I click Advanced it says
this display doesn't support any advanced
settings.

In Device Manager, the laptop's monitor is
listed as "Generic PnP Monitor".

I googled for this, but all I found was advice
to right-click the desktop and select screen
resolution. My screen resolution is correct.
Out of desperation, I tried setting it down to
1600x900 and then up to 2910x1080 again, but
that didn't help.

If anyone can shed any light, I'll be
grateful.

--
Stan Brown, Oak Road Systems, Tompkins County,
New York, USA

http://BrownMath.com/

http://OakRoadSystems.com/
Shikata ga nai...
Ads
  #2  
Old November 15th 15, 06:51 AM posted to alt.comp.os.windows-8
Paul
external usenet poster
 
Posts: 18,275
Default Screen resolution

Stan Brown wrote:
I have an Asus Zenbook laptop, running Windows
8.1. Screen resolution is set to 1920x1080,
which is the recommended size. There's no
external monitor, and I've never connected
one.

But programs are not seeing that resolution.
For example, I used a test image in Irfanview,
and a 1280x720 image took up the whole screen
exactly. (Irfanview is set to show images at
100%.) I don't have Magnifier running, or
anything like that.

It took me a while to recognize this, because
the screen looks really sharp and crisp, but
as far as I know it's been this way since I
got this laptop

When I maximize a window, it takes the visible
screen and doesn't overflow past the screen
limits.

This is Windows 8.1. Intel HD Graphics 5300.
When I bring up Intel HD Graphics in Control
Panel, display settings are Basic and
Advanced, but when I click Advanced it says
this display doesn't support any advanced
settings.

In Device Manager, the laptop's monitor is
listed as "Generic PnP Monitor".

I googled for this, but all I found was advice
to right-click the desktop and select screen
resolution. My screen resolution is correct.
Out of desperation, I tried setting it down to
1600x900 and then up to 2910x1080 again, but
that didn't help.

If anyone can shed any light, I'll be
grateful.


My guess is, your "DPI" is set to 150%, in an
initial attempt to make fonts bigger. In WinXP
days, you dialed "DPI" to make the fonts in
dialog boxes a bit bigger. Even if some of the
letters dropped off the side of the dialog box :-)

Now, Windows has a separate control for letters in
title bars and so on. But I'm still a bit confused
about what the global DPI control is supposed to do,
and why does the odd application seem to be doing the
wrong thing. The DPI setting is applied to more than
a few dialog fonts now.

http://www.tenforums.com/tutorials/5...dows-10-a.html

Applications like Firefox, have at their disposal
physical screen info, as well as virtual screen info
(the ratio of which is "DPI"). And may report the
wrong thing. Causing content of the wrong size to
be delivered from web sites (such as one News site I
use here, where the Flash videos are too wide).

My suspicion is, developers don't know what they're
supposed to be doing with this info. Even in Linux,
I see people fighting with "HiDPI" issues.

Paul
  #3  
Old November 15th 15, 02:34 PM posted to alt.comp.os.windows-8
Neil
external usenet poster
 
Posts: 714
Default Screen resolution

On 11/14/2015 10:54 PM, Stan Brown wrote:
I have an Asus Zenbook laptop, running Windows
8.1. Screen resolution is set to 1920x1080,
which is the recommended size. There's no
external monitor, and I've never connected
one.

But programs are not seeing that resolution.
For example, I used a test image in Irfanview,
and a 1280x720 image took up the whole screen
exactly. (Irfanview is set to show images at
100%.) I don't have Magnifier running, or
anything like that.

It took me a while to recognize this, because
the screen looks really sharp and crisp, but
as far as I know it's been this way since I
got this laptop

When I maximize a window, it takes the visible
screen and doesn't overflow past the screen
limits.

This is Windows 8.1. Intel HD Graphics 5300.
When I bring up Intel HD Graphics in Control
Panel, display settings are Basic and
Advanced, but when I click Advanced it says
this display doesn't support any advanced
settings.

In Device Manager, the laptop's monitor is
listed as "Generic PnP Monitor".

I googled for this, but all I found was advice
to right-click the desktop and select screen
resolution. My screen resolution is correct.
Out of desperation, I tried setting it down to
1600x900 and then up to 2910x1080 again, but
that didn't help.

If anyone can shed any light, I'll be
grateful.

The relationship between screen resolution and displaying images in an
application is indirect and may not necessarily have a 1:1 pixel count.
Since your Windows screen resolution is set correctly, it is reasonable
to assume that the settings in the app are causing the variance you see.
As Wolf points out, if you display that image at 100%, it should not
take up the entire screen. OTOH, if your settings in the app "optimize"
the display of the image to fit the screen, there's no telling what the
actual image/pixel relationship might be without a calculator. I
wouldn't worry about it, unless you are trying to achieve a specific
pixel size for the image.

--
Best regards,

Neil
  #4  
Old November 15th 15, 03:56 PM posted to alt.comp.os.windows-8
Stan Brown
external usenet poster
 
Posts: 2,904
Default Screen resolution

On Sun, 15 Nov 2015 00:51:35 -0500, Paul wrote:
Stan Brown wrote:
[quoted text muted]

If anyone can shed any light, I'll be
grateful.


My guess is, your "DPI" is set to 150%, in an
initial attempt to make fonts bigger.


You nailed it, Paul! Thank you!

The URL you gave was for Windows 10, which apparently has a really
different UI, but they also have one for Windows 8.1:

http://www.eightforums.com/tutorials...g-size-change-
displays-windows-8-1-a.html

I had been to the Display screen under Personalize before, but "Make
test and other items on the desktop smaller or larger" didn't
resonate for me because full-screen programs were using the full
screen. If only they'd used the term "DPI" I might have had a clue.

There are three available positions for the slider, which was
initially set to the largest. (Based on my experiences with
Irfanview, that must be 150%. I don't know why they don't show the
percentages when you're adjusting only one display.) I tried the
smallest, which I guess is 100% and it's actually too small for
comfortable reading. The medium setting (125%) seems usable without
glasses, at least if I'm not too tired.

Thanks again!

--
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
http://BrownMath.com/
http://OakRoadSystems.com/
Shikata ga nai...
  #5  
Old November 15th 15, 04:38 PM posted to alt.comp.os.windows-8
Stan Brown
external usenet poster
 
Posts: 2,904
Default Screen resolution

On Sun, 15 Nov 2015 08:21:49 -0500, Wolf K wrote:

Irfanview displays the complete image by default. Check the info-bar at
the bottom of the screen, you should see less than 100% when you display
an oversize image. Use the +/- zoom button on the toolbar to change the
displayed size.

BTW, don't fiddle with the resolution setting. You can use Windows
Personalize to increase the sizes of fonts in labels, menus, etc, and
desktop icon size.


Thanks for posting. I know how to use Irfanview settings, and I have
set "Fit to screen (large images only)". I've no reason to think this
was an Irfanview problem.

My point was that that's how I know that Irfanview was seeing the
screen size as 1280x720 even though the resolution was set to the
recommended 1920x1080.

As you know, it's possible to display Irfanview's zoom percentage in
fullscreen. Anything larger than a 1280x720 image showed a zoom less
than 100%, indicating Irfanview thought it was too big for the
screen.

I didn't mention earlier, but what initially twigged me to the
problem was that I have a lot of local Web pages with images 1550
pixels wide. Firefox was displaying only part of all of them, with
horizontal scroll bars. I knew that couldn't be right, on a display
with 1920 horizontal resolution.

For Firefox, there's a setting layout.css.devPixelsPerPx in
about:config. I've been experimenting with that, but the final
setting will depend on whether I keep Windows DPI size at 125%
(Thanks, Paul!) or go back to the default 150%.

--
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
http://BrownMath.com/
http://OakRoadSystems.com/
Shikata ga nai...
  #6  
Old November 24th 15, 07:02 AM posted to alt.comp.os.windows-8
Charlie
external usenet poster
 
Posts: 182
Default Screen resolution

On 11/15/2015 8:34 AM, Neil wrote:
On 11/14/2015 10:54 PM, Stan Brown wrote:
I have an Asus Zenbook laptop, running Windows
8.1. Screen resolution is set to 1920x1080,
which is the recommended size. There's no
external monitor, and I've never connected
one.

But programs are not seeing that resolution.
For example, I used a test image in Irfanview,
and a 1280x720 image took up the whole screen
exactly. (Irfanview is set to show images at
100%.) I don't have Magnifier running, or
anything like that.

It took me a while to recognize this, because
the screen looks really sharp and crisp, but
as far as I know it's been this way since I
got this laptop

When I maximize a window, it takes the visible
screen and doesn't overflow past the screen
limits.

This is Windows 8.1. Intel HD Graphics 5300.
When I bring up Intel HD Graphics in Control
Panel, display settings are Basic and
Advanced, but when I click Advanced it says
this display doesn't support any advanced
settings.

In Device Manager, the laptop's monitor is
listed as "Generic PnP Monitor".

I googled for this, but all I found was advice
to right-click the desktop and select screen
resolution. My screen resolution is correct.
Out of desperation, I tried setting it down to
1600x900 and then up to 2910x1080 again, but
that didn't help.

If anyone can shed any light, I'll be
grateful.

The relationship between screen resolution and displaying images in an
application is indirect and may not necessarily have a 1:1 pixel count.
Since your Windows screen resolution is set correctly, it is reasonable
to assume that the settings in the app are causing the variance you see.
As Wolf points out, if you display that image at 100%, it should not
take up the entire screen. OTOH, if your settings in the app "optimize"
the display of the image to fit the screen, there's no telling what the
actual image/pixel relationship might be without a calculator. I
wouldn't worry about it, unless you are trying to achieve a specific
pixel size for the image.

I have a "Yoga 2 Pro" that has a 4K display screen. The Intel video
utility has most of the fancy options locked out. Don't know if this is
due to the 4300 video chip or Lenovo. I've never figured out how to
get an app to scale properly unless I change down to 1920x1080 or so.
I'd need a magnifying glass to really use the full resolution.
  #7  
Old November 24th 15, 06:27 PM posted to alt.comp.os.windows-8
Neil
external usenet poster
 
Posts: 714
Default Screen resolution

On 11/24/2015 1:02 AM, Charlie wrote:
On 11/15/2015 8:34 AM, Neil wrote:
The relationship between screen resolution and displaying images in an
application is indirect and may not necessarily have a 1:1 pixel count.
Since your Windows screen resolution is set correctly, it is reasonable
to assume that the settings in the app are causing the variance you see.
As Wolf points out, if you display that image at 100%, it should not
take up the entire screen. OTOH, if your settings in the app "optimize"
the display of the image to fit the screen, there's no telling what the
actual image/pixel relationship might be without a calculator. I
wouldn't worry about it, unless you are trying to achieve a specific
pixel size for the image.

I have a "Yoga 2 Pro" that has a 4K display screen. The Intel video
utility has most of the fancy options locked out. Don't know if this is
due to the 4300 video chip or Lenovo. I've never figured out how to
get an app to scale properly unless I change down to 1920x1080 or so.
I'd need a magnifying glass to really use the full resolution.

Resolution options can only be resolved by having a current driver
compatible with the device and OS. App scaling should not be a problem,
since most parameters are set by Windows. You should be able to adjust
text size with your current video utility or with Windows' graphics options.

--
Best regards,

Neil
  #8  
Old November 26th 15, 12:22 AM posted to alt.comp.os.windows-8
Charlie
external usenet poster
 
Posts: 182
Default Screen resolution

On 11/24/2015 12:27 PM, Neil wrote:
Resolution options can only be resolved by having a current driver
compatible with the device and OS. App scaling should not be a problem,
since most parameters are set by Windows. You should be able to adjust
text size with your current video utility or with Windows' graphics
options.

Resolution options can only be resolved by having a current driver
compatible with the device and OS. App scaling should not be a problem,
since most parameters are set by Windows. You should be able to adjust
text size with your current video utility or with Windows' graphics
options.

I agree - - But the drivers and video C/P are Intel.
There is no update beyond what is currently installed (Lenovo or Intel)
The problem get into an area that evidently was not documented properly
by MS in the developers documentation.

In any case the issue is with the 4k resolution. Change to a lower
"standard" one, and things behave more or less normally.
I'd suspect that many of the apps were never tested completely at this
resolution.
 




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