Hi all. Okay, I've got one more problem that's shown up which I know isn't a problem with the system itself, as it runs fine with Mint 18.3 when I test it. In fact, it's rock solid under Mint 18.3, so I've been able to rule out hardware issues with the system via that method (sorry for jumping ship for a while, but I had to try and narrow down the problem one way or another) and ruled it out. Anyhow, what happens is this, and I'll show a few examples so you know what I'm dealing with.
1. Thunderbird is one program that this is known to happen with. When I download mail, and the download reaches 100%, it freezes for up to a minute before I can do anything. It doesn't freeze at any other time, and it only seems to be when it's writing to the disk. This happens every single time I download mail.
2. Firefox and Waterfox, when downloading files, as soon as the file completes, it'll freeze for about the same amount of time as though waiting for something to timeout.
3. Pidgin will randomly freeze when sending messages to someone. I hit enter and it just sits there for about 30 seconds before something happens. Again, not all the time. Just sometimes, and at random times. But when the freeze happens it's usually for the same amount of time.
The only common element I can think of between these three is system notifications. Because with Thunderbird and Firefox/Waterfox, when the email finishes coming in, a popup will appear saying either "new mail" (thunderbird), "download completed" (firefox/waterfox), or the systray icon will change for Pidgin. Again, all notifications. So I'm kinda thinking I might be butting up against a system notification of some kind that times out after about 30 seconds, but I have no idea what notification as the native Plasma notification system is turned off, deferring all notifications directly to the individual programs themselves. This was tested with two different SSD drives (a Sandisk and a Samsung 860) and it does it the same on both, so I'm not thinking that it's a disk issue, and as I said, it doesn't do it under Mint, so I'm trying to narrow down what in Kubuntu is causing this, and the only thing I can point the finger at is system notifications at this point. Anyhow, if any of you have some ideas, I'm game.
1. Thunderbird is one program that this is known to happen with. When I download mail, and the download reaches 100%, it freezes for up to a minute before I can do anything. It doesn't freeze at any other time, and it only seems to be when it's writing to the disk. This happens every single time I download mail.
2. Firefox and Waterfox, when downloading files, as soon as the file completes, it'll freeze for about the same amount of time as though waiting for something to timeout.
3. Pidgin will randomly freeze when sending messages to someone. I hit enter and it just sits there for about 30 seconds before something happens. Again, not all the time. Just sometimes, and at random times. But when the freeze happens it's usually for the same amount of time.
The only common element I can think of between these three is system notifications. Because with Thunderbird and Firefox/Waterfox, when the email finishes coming in, a popup will appear saying either "new mail" (thunderbird), "download completed" (firefox/waterfox), or the systray icon will change for Pidgin. Again, all notifications. So I'm kinda thinking I might be butting up against a system notification of some kind that times out after about 30 seconds, but I have no idea what notification as the native Plasma notification system is turned off, deferring all notifications directly to the individual programs themselves. This was tested with two different SSD drives (a Sandisk and a Samsung 860) and it does it the same on both, so I'm not thinking that it's a disk issue, and as I said, it doesn't do it under Mint, so I'm trying to narrow down what in Kubuntu is causing this, and the only thing I can point the finger at is system notifications at this point. Anyhow, if any of you have some ideas, I'm game.
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