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Resolved PB Application Screens look fuzzy in Chrome browser

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  1. Munther Khatib
    Munther Khatib
  2. PowerBuilder
  3. Saturday, 13 March 2021 01:50 AM UTC

Hi

We migrated our PB application from Appeon 6.5 server and PB 12.5 to Powerserver 2020 and PB 2019 R2. The Appeon 6.5 server was only compatible with IE browser.

The new PS 2020 is supposed to be compatible with all browsers. Since IE is going out of support, the users wanted to use Google Chrome.

During testing using Google chrome browser, Testers reported display issues (blurring and pixilation) in Chrome and Edge that cause eye strain. The screen looked fuzzy and with text difficult to read.

More space maybe needed between the characters too.


These issues are NOT happening when using the IE browser and screen looks clear.

 

I also learned that IE uses only powerserver plugin while chrome/Edge/Firefox 
need both the Appeonmultibrowser.exe and powerserver plugin.

I have already entered a ticket with standard support but we dont have a final solutions for this.

I wanted to check with other developers and experts on whether they had similar problem and how they fixed it.


Is there a fix or workaround for this problem?

Thanks,

  1. Browser
  2. Chrome
  3. PowerBuilder (Appeon)
  4. PowerServer
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Responses (4)
Kai Zhao @Appeon
Kai Zhao @Appeon Accepted Answer Pending Moderation
  1. Monday, 15 March 2021 00:17 AM UTC
  2. PowerBuilder
  3. # 1

Hi Munther,

It seems screen resolution related issue, Please try the solution below on all machines where users need to run the application on Chrome:

Step 1: Go to C:\Users\%current windows user%\AppData\Local\Appeon Multi-browser Plug-in, for example:
C:\Users\Appeon\AppData\Local\Appeon Multi-browser Plug-in.

Step 2: Right-click AppeonMultiBrowser.exe and go to Properties -> Compatibility -> Change high DPI settings -> check Override high DPI scaling behavior. Scaling performed by:
Application.

Step 3: Go to C:\Program Files (x86)\Google\Chrome\Application.

Step 4: Right-click chrome.exe and go to Properties -> Compatibility -> Change High DPI settings to UNCHECK Override high DPI scaling behavior.

Regards,
ZhaoKai

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Munther Khatib
  1. Munther Khatib
  2. Monday, 15 March 2021 00:24 AM UTC
Hi



I have tried it on my machine and did not notice any changes. I sent it to some test users to test it out. Still waiting for a test results from them on this.



  1. Helpful
Kai Zhao @Appeon
  1. Kai Zhao @Appeon
  2. Monday, 15 March 2021 01:46 AM UTC
Hi Munther,



What’s your screen resolution? Does the Chrome on your machine also have this issue?



Is the UI on Chrome the same as that on IE on your machine? If not, let's schedule a remote session to debug it. We would recommend you to make the remote session during our working time which is 9:00 ~ 17:00 (we are in UTC+8 ) thus we can get immediate help from the other team if necessary.



Regards,

ZhaoKai

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Marco Meoni
Marco Meoni Accepted Answer Pending Moderation
  1. Sunday, 14 March 2021 16:53 PM UTC
  2. PowerBuilder
  3. # 2

Hi Munther,

I have taken one large application deployed to Cloud PS 2020. Since a few years, it is accessed as IWA-only: several thousands end-users, no one ever reporting whatsoever issue with fonts or fuzzy aspects.

Today I gave it a whirl in a browser, and got surprised indeed. See attached image, IE is as clean and readable a IWA, while in Chrome (FF too) texts are clipped and blurry. Since IWA is supposed to use an embedded (32bit) Chrome browser running the same app that I am directly running in Chrome, I expected differences, if any, to happen between IWA/Chrome and IE. My app uses Trebuchet MS, but a quick test with Arial shows same issues above.

Would be interesting to hear from Appeon core team here.

Best,

.m

 

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mike S
  1. mike S
  2. Sunday, 14 March 2021 18:30 PM UTC
fwiw, i don't see these problems with Edge or chrome
  1. Helpful
Chris Pollach @Appeon
  1. Chris Pollach @Appeon
  2. Sunday, 14 March 2021 21:37 PM UTC
Hi Mike / Marco... FWIW: no App clarity issues for me when running PS Apps in Chrome or IWA. I am using Tahoma 8 point fonts. Thinking about moving to "segoe ui" font now as MS-Office seems to be adopting that font in W10.

Regards... Chris
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Munther Khatib
Munther Khatib Accepted Answer Pending Moderation
  1. Saturday, 13 March 2021 19:13 PM UTC
  2. PowerBuilder
  3. # 3

Yes I tried IWA and screen was similar to chrome. IWA is based on chrome.

IWA also might require security approval since it runs as a client server (outside browser).

I noticed too it  is little slower than chrome.

Application sues MS San Serif 8 font.

 

Munther

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Munther Khatib
  1. Munther Khatib
  2. Saturday, 13 March 2021 21:19 PM UTC
@armeen

Are you aware of this problem with Chrome and Edge? It seems it might be the multibrowser plugin since IE works fine.
  1. Helpful
Armeen Mazda @Appeon
  1. Armeen Mazda @Appeon
  2. Saturday, 13 March 2021 22:48 PM UTC
I haven’t heard of this before. You have the issue on multiple machines or just one machine? Do you reproduce the same issue on FireFox (that uses same exact plugin as Chrome)? If you change the font to Arial 10pt do you have same issue? What is Windows DPI set to?
  1. Helpful
Munther Khatib
  1. Munther Khatib
  2. Monday, 15 March 2021 00:23 AM UTC
Armeen

Yes, the issue happens on many users machines.

Firefox tester is reporting a different strange problem where other windows application would cause all windows to close down and drop off VPN.



I have noo tried changing fonts for screens. I will check windows DIP setting tomorrow.

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mike S
mike S Accepted Answer Pending Moderation
  1. Saturday, 13 March 2021 13:59 PM UTC
  2. PowerBuilder
  3. # 4

have you tried the installable web app?

what font are you using?

 

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