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As gm10 said. Also (if applicable) a switch from VGA (analog) connection to HDMI or DVI (both digital) might help.

Obviously both your graphics card and your monitor must have such a connector, and you need the right cable for that as well.

Step D you mean ... d. From the menu, launch Update Manager. In the toolbar of Update Manager: View - Linux kernels Install the very latest kernel in the list I did that ! I could only see Linux kernel 4.15.0-42.45 in update manager . Bollocks. See (click on the image to enlarge it): https://i.post...

Might be upgrade woes. First try a clean installation of Mint 19.

well. thanks for hanging out in this forum and trying to help people who ask for it. You're welcome. I just don't feel helped but just told to not customize my system. I said no such thing. I said to create a new user account for testing purposes , definitely not to replace your main account with i...

kaefert wrote: ⤴

Mon Nov 19, 2018 8:40 am

I'm asking for help on debugging the problem

That's exactly what you're getting. It's called: elimination of user tweaks as potential culprits. Narrows down the investigation field.

not on how to start with a fresh user directory...

Suit yourself, brother.

Create a new user account, log into that new account, don't change anything at all in it (certainly don't install widgets and such), and test again.

https://www.phoronix.com/scan.php?page=article&item=linux-420-stibp&num=1 - The Spectre/Meltdown Performance Impact On Linux 4.20, Decimating Benchmarks With New STIBP Overhead - Written by Michael Larabel in Software on 17 November 2018 https://www.phoronix.com/scan.php?page=news_item&px=Linux-Tor...

Thanks...but concy only gives a very coarse grained overview of cpu and the system as a whole. I need as detailed as possible. My Conky, of which you see the screenshots on the web page I referred you to, is very basic and only scratches the surface of what Conky is capable of. See: https://linux.d...

Try what Conky can do for you:
https://sites.google.com/site/easylinux ... forxubuntu

You didn't apply step d of the how-to that I recommended in my previous message. That would have given you the latest 4.18 kernel. As to your reluctance to try pre-release kernels: there are some fine Dutch sayings for that. Translated: "If it can't be done the way it should, it should be done the w...

Try this: 1. Disable power management for your wifi chipset: https://sites.google.com/site/easylinuxtipsproject/internet#TOC-Disable-power-management-for-the-wireless-card (item 2.1, right column) 2. Install another driver: https://sites.google.com/site/easylinuxtipsproject/reserve-7#TOC-The-rtlwifi...

The infamous Mint mouse scroll wheel problem. Never heard of it. Neither did I, but then I'm only a Linux desktop user since 2006. :lol: An amusingly dramatic topic title and first post, but OK, all joking aside.... Generate an overview of your system like this: - Launch a terminal window (this is ...

That means you're OK: everything works well on the default open source drivers. Nothing to do.

majpooper already referred to my website (thanks!) but I'll give you some direct links as well: Security: https://sites.google.com/site/easylinuxtipsproject/security Cleaning: https://sites.google.com/site/easylinuxtipsproject/4 Speeding up: https://sites.google.com/site/easylinuxtipsproject/3 Have ...

Check the support section of the manufacturer of your laptop for an updated BIOS. When available, install it. No avail? Then try the latest kernel of the 4.18 series , by means of the reliable canonical-kernel-team PPA: https://sites.google.com/site/easylinuxtipsproject/2#TOC-Install-a-brand-new-uns...

Please generate an overview of your system like this: - Launch a terminal window (this is how to launch a terminal window) ; - make the terminal window full screen, to avoid chopped lines; - Copy/paste this command into the terminal: inxi -Fxz (if you type: the letter F is a capital letter) Press En...

Installed any Flatpaks?

Did you ever use BleachBit? That software wrecking ball can cause something similar, when you abort it before it has finished.

Try this progressive scheme:
https://sites.google.com/site/easylinux ... adjustable
(item 4 and further, left column)

Don't use sudo for systemd-analyze . Quite unnecessary, and may even have negative side effects. Why is it so? Because systemd-analyze also works without sudo, and because unnecessarily running an application with root authority always carries the risk of messing up file permissions. :wink: