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I have been experiencing "application X not responding " Linux Ubuntu since unknown "version upgrade ".
Posted inquiry about it on several forums and so far no response.
My guess is it has to do with Ubuntu "multitasking"... but guessing does not solve the issue..
Reason for this post
my hobby program - tracking radio response (pings) from meteor - runs "system call"
which takes roughly 12 seconds to complete - on the good day.
When Ubuntu decides to " application (my program ) not responding"
it takes about 5 to 7 seconds to post the message and then my system call
completion is unpredictable...most of the time Ubuntu does not recover..
HENCE
I am asking this forum to recommend alternative to Ubuntu
which is "user friendly " to QT.
I did ask Mrs Google and read few "reviews" , they are void of comments as far as
programming application , likes QT , so that is why I am posting this here.
I do not care if Linux flavor X is "Windows like" or faster then a speeding bullet...
I need to get rid of "application not responding ". Period.
Thanks for reading and have a happy festivus...
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What hardware platform is your app running on?
Are you sure it's Ubuntu and not the hardware you're running on?
Does it have enough memory?, etc..
As the aircraft designer said, "Simplicate and add lightness".
PartsBin an Electronics Part Organizer - Release Version 1.3.0 JaxCoder.com
Latest Article: SimpleWizardUpdate
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I do not know how to describe "hardware platform".
I have been running Ubuntu WITHOUT this problem for over 10 years.
As I said it started recently, after about three or four version upgrade.
It affect ANY application , not just my C++ code.
I have 8GB RAM and NEVER seen it over 50% usage.
I appreciate your comments, however, I have had it and if it is a system hardware
issue it will show up in another OS. Then it will be end of guessing.
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Whenever an app gets into a "not responding" state, it usually can be attributed to its UI thread being blocked by a long-running task, and the solution typically is to move that long-running task to a background thread. But since it's been working fine "for over 10 years", and is happening with multiple, unrelated (?) apps, it's hard to blame that. I'd say you're probably correct in that there's something else in one of the prior upgrades that has introduced a problem that wasn't there before.
You could start rolling back to previous versions, but (a) I don't know how much of a hassle this is going to be for you and (b) it's still going to be a needle in a haystack. But, if you go back far enough to demonstrate, say, that a version that used to work no longer does...then it could be failing hardware, such as a disk taking its sweet time to respond and affecting every application. But if you could pinpoint a specific version where the problem reappears (when moving from version X to version X+1), then at least you could start looking at a change log.
I can't think of much else to add at this point other than good luck. I can only imagine just how frustrating this sort of thing can be.
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Salvatore Terress wrote: I do not know how to describe "hardware platform".
He means, "what are you running it on? A PC, Raspberry Pi, etc.".
If, by any chance, it's a Raspberry PI, check dmesg to make sure that you have neither low voltage nor high temperature conditions.
Also check your SDR USB dongle for overheating.
So old that I did my first coding in octal via switches on a DEC PDP 8
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I found - years ago - Fedora to be the best for me...
I occasionally using Qt, and it works for me, however the IDE comes with it is far from being good... but it may be a global issues and not specific to me...
"If builders built buildings the way programmers wrote programs, then the first woodpecker that came along would destroy civilization." ― Gerald Weinberg
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You may like to try the suggestion at Ubuntu 22.04 too eager[^]. However, more importantly, you really need to find out what is taking so long to process.
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Amazon.de now offers The Who - Who's Next | Life House [SDE with 10 CD + 1 BD] for 133 EUR !
https://www.amazon.de/Whos-Next-10CD-BluRay-Who/dp/B0CB91MQBY/ref=sr_1_1?crid=ENWZY4BROF10&keywords=the+who+who%27s+next+super+deluxe&qid=1703352171&sprefix=%2Caps%2C109&sr=8-1[^]
Within germany inc. shipping.
I don't know how much shipping within the EU costs and for US or UK you have to check for shipping costs and probably taxes.
Many say Who's Next is one of the greatest Rock Albums of all times and I can say they are right!
I use Amazon Music Unlimited for streaming and this SDE (Super Deluxe Edition) is very good.
The original album, the Pete Townshend Life House demos (CD2 and 3) and Sessions, Outtakes and Singles (CD 4, 5 and 6) are great!
The live concerts are not so important for me:
CD 7 + 8 live at the Young Vic [Theatre] 1971
CD 9 + 10 Live At The The Civic Auditorium, San Francisco, USA / 1971
Perhaps someone is interested and can save some money.
EDIT:
For shipping costs and/or taxes please contact Amazon customer service!
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Well it amused me, anyway[^]
Told you I'd be back, but I'll be doing it slowly - I have a backlog of several months worth of sleep to catch up on, and my concentration is a bit short as a result.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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"Ho, ho". And good to hear from you Paul; let's hope the mending process continues.
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I was just contemplating emailing you - we've missed you.
In a closed society where everybody's guilty, the only crime is getting caught. In a world of thieves, the only final sin is stupidity. - Hunter S Thompson - RIP
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Take it easy, Paul. "Time takes time."
But it is good to hear from you again.
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012
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Good to hear from you!
"In testa che avete, Signor di Ceprano?"
-- Rigoletto
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Good to hear from you again and best Christmas wishes to you!
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Welcome back, at your own pace.
As the aircraft designer said, "Simplicate and add lightness".
PartsBin an Electronics Part Organizer - Release Version 1.3.0 JaxCoder.com
Latest Article: SimpleWizardUpdate
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That was a good re-entrance! 
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Amused me too!  Welcome back.
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Welcome, Paul. Sleep away, friend.
Software Zen: delete this;
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Ho, Ho, Ho.
Happy whatever you celebrate.
>64
There is never enough time to do it right, but there is enough time to do it over.
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Welcome back, and it's very good to see you!
Will Rogers never met me.
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It's good to see you back!
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
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Sidetracking - you trailer:
Wouldn't real freedom be to say that two plus two make five? That would include a lot of religious freedom as well!
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You are assuming that there is no objective reality, and that therefore reality is whatever the Powers That Be claim that it is.
You may recall that in George Orwell's Nineteen Hundred and Eighty Four, Winston Smith worked in the Ministry of Truth, whose only reason for existence was to "correct" data so that it appeared that the Party was always right.
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
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