This is the BETA release for LMDE 3 “Cindy”.

LMDE 3 Cindy

LMDE is a Linux Mint project and it stands for “Linux Mint Debian Edition”. Its main goal is for the Linux Mint team to see how viable our distribution would be and how much work would be necessary if Ubuntu was ever to disappear. LMDE aims to be as similar as possible to Linux Mint, but without using Ubuntu. The package base is provided by Debian instead.

There are no point releases in LMDE. Other than bug fixes and security fixes Debian base packages stay the same, but Mint and desktop components are updated continuously. When ready, newly developed features get directly into LMDE, whereas they are staged for inclusion on the next upcoming Linux Mint point release.

Important info:

The release notes provide important information about known issues, as well as explanations, workarounds and solutions.

To read the release notes, please visit:

Release Notes for LMDE 3

System requirements:

  • 1GB RAM (2GB recommended for a comfortable usage).
  • 15GB of disk space (20GB recommended).
  • 1024×768 resolution (on lower resolutions, press ALT to drag windows with the mouse if they don’t fit in the screen).


  • The 64-bit ISO can boot with BIOS or UEFI.
  • The 32-bit ISO can only boot with BIOS.
  • The 64-bit ISO is recommended for all modern computers (Almost all computers sold since 2007 are equipped with 64-bit processors).

Upgrade instructions:

  • This BETA release might contain critical bugs, please only use it for testing purposes and to help the Linux Mint team fix issues prior to the stable release.
  • It will be possible to upgrade from this BETA to the stable release.

Bug reports:

  • Bugs in this release should be reported on Github at
  • Create one issue per bug.
  • As described in the Linux Mint Troubleshooting Guide, do not report or create issues for observations.
  • Be as accurate as possible and include any information that might help developers reproduce the issue or understand the cause of the issue:
    • Bugs we can reproduce, or which cause we understand are usually fixed very easily.
    • It is important to mention whether a bug happens “always”, or “sometimes”, and what triggers it.
    • If a bug happens but didn’t happen before, or doesn’t happen in another distribution, or doesn’t happen in a different environment, please mention it and try to pinpoint the differences at play.
    • If we can’t reproduce a particular bug and we don’t understand its cause, it’s unlikely we’ll be able to fix it.
  • Please visit to follow the progress of the development team between the BETA and the stable release.

Download links:

Here are the download links for the 64-bit ISO:

A 32-bit ISO image is also available at

Integrity and authenticity checks:

Once you have downloaded an image, please verify its integrity and authenticity.

Anyone can produce fake ISO images, it is your responsibility to check you are downloading the official ones.


We look forward to receiving your feedback. Many thanks in advance for testing the BETA!

First of all, I’d like to thank our sponsors and all the people who sent us donations. Your help is appreciated. We’ve had to overcome tough issues since the start of this project in 2006, this last month in particular hasn’t been easy, but we’ve never had to worry about income. We often say it, but it is very true, you empower us, we’re able to focus solely on the distribution itself and it feels like a real privilege.

Sleepless nights

A mistimed MESA update in Xenial temporarily broke Ubuntu and Linux Mint upgrades. We were able to block it on the 7th of July, and ask people to revert the upgrade with Timeshift. On the 9th, everything was resolved, and the upgrade path was fixed and re-opened.

More recently, a grub update triggered an issue in one of our own packages. That issue could only be triggered by a new grub update and so it had gone undetected during QA and the BETA test. Although it was fixed in a matter of hours in the repositories, it still affects our installation ISO images and it breaks EFI installations when the live session is connected to the Internet. The release notes were updated to ask people to install offline. New 64-bit ISO images for Linux Mint 19 Cinnamon, MATE and Xfce were produced with the fixed package and they passed QA yesterday. These new ISOs will replace the current images in the days to come.

Be careful with Kernel 4.15.0-24. A critical issue causes some computers to boot really slowly, or not to boot at all. Ubuntu is aware of it and working on a fix. We’ve also received negative feedback from the 4.15 kernel series in Mint 18.x (based on Ubuntu Xenial). Although Ubuntu decided to switch the HWE series towards it, the 4.15 series doesn’t appear to support some proprietary drivers yet (nvidia-3.04 and nvidia-340 among them).

We’re also aware of regressions in the Bionic base affecting VPN, Samba, Wine (recently fixed). Ubuntu 18.04 is a brand new base and we’re sure it will settle, receive bug fixes and get more mature with time.

Of course our attention is mostly focused on the problems and we quickly forget about all the improvements. We had a great Linux Mint 19 release, we also received a huge amount of positive feedback and we’ve seen many great changes when moving from 16.04 to 18.04.


LMDE 3 will feature 2 different installers. In addition to our own “live-installer”, you’ll also find Calamares in the application menu.

Although live-installer works well and is very easy for us to maintain, troubleshoot and improve, Calamares is ahead when it comes to partitioning schemes and it provides the ability to use LUKS full-disk encryption.

Both installers support BIOS and EFI installations. We’ll be interested to hear your feedback.

LMDE 3 is currently in QA and its BETA release is planned for the end of the month.

Cinnamon 4.0

In continuation with the “snappiness” improvements which came in Cinnamon 3.8, the team is currently looking at VSync, and in particular at CLUTTER_VBLANK which sets Sync to VBlank in Cinnamon.

Although Vsync prevents screen tearing from happening, it also has a performance cost. That cost is visible in Cinnamon when dragging a window with the mouse. As you move the mouse cursor left and right, you can notice that the window which is dragged under it doesn’t move exactly “with it”, but with a slight delay, as if there was some sort of elastic band between the cursor and the window it’s holding.

Removing Vsync removes that delay. Windows drags are then immediate and fully responsive. FPS measures also seem to confirm this observation and higher FPS figures lead us to believe this could have other positive impacts on Cinnamon’s performance.

The problem then is screen tearing.

On modern NVIDIA GPUs we’re able to get rid of screen tearing by using “Force Composition Pipeline” in NVIDIA-Settings. With Vsync disabled in Cinnamon we then enjoy a faster desktop environments with no screen tearing.

The team is currently looking into this and testing on a variety of different setups and graphics cards. There’s no guarantee we’ll find a “one size fits all” solution and be able to ship a Cinnamon 4.0 environment which will be fast and without screen tearing for everybody out of the box. If we can’t we’ll probably make it easier for people to tune their environment, with more information on screen-tearing, performance and the ability to set Vsync in the System Settings.

If you want to test this on your current Cinnamon setup, you can restart cinnamon with:

And to restart it without Vsync:

See if you see a difference in terms of FPS and when you move windows across the screen. Screen tearing, when it happens, is mostly visible in movies or when scrolling lists up and down. Test with non-fullscreen windows (full-screen windows can skip composition in Cinnamon, so that’s a different thing altogether).


Linux Mint is proudly sponsored by:

Platinum Sponsors:
Private Internet Access
Gold Sponsors:
Linux VPS Hosting
Silver Sponsors:

Bronze Sponsors:
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AYKsolutions Server & Cloud Hosting
7L Networks Toronto Colocation *
BGASoft Inc
David Salvo
Community Sponsors:


Donations in June:

A total of $10,126 were raised thanks to the generous contributions of 492 donors:

$250, Tim W.
$200, Abdu A.
$109 (8th donation), Frederic L. aka “nofrog”
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$109 (3rd donation), Timothy W.
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$109, Theo R.
$109, S. B.
$109, Eric P. K.
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$100, Bruno Weber
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$100, Ben C.
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$75, James L.
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$54 (4th donation), Paul S. E. aka “Paul”
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$54, Götz H.
$54, Barton H.
$54, Peter R.
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$54, Gourmelon H.
$54, Sascha S.
$50 (26th donation), Anthony C. aka “ciak”
$50 (9th donation), Thomas T. aka “FullTimer1489”
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$50 (6th donation), Michael G. aka “Vaughn”
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$50, Murray M.
$50, Karl G
$50, Ray W.
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$33, Robert M.
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$30, Volodymyr N.
$30, Omnipotence Software
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$30, Thomas W.
$27 (2nd donation), Ralf R.
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$27, Johannes B.
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$24, Eugeniusz M.
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$10, Jeffrey O. aka “Loloy D
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$6 (6th donation), Michel B.
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$5 (18th donation), Todd A aka “thobin”
$5 (17th donation), Kouji Sugibayashi
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$5, Jose S. B. aka “josalbon”
$5, Christian W.
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$5, Jacek O.
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$5, Dipl.-Ing.(FH) Andreas Gerlich
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If you’ve been waiting for this I’d like to thank you for your patience.

It is now possible to upgrade the Cinnamon, MATE and Xfce editions of Linux Mint 18.3 to version 19.

The upgrade instructions are available at:

Upgrade for a reason

“If it ain’t broke, don’t fix it”.

Linux Mint 17, 17.1, 17.2 and 17.3 are supported until 2019 and Linux Mint 18, 18.1, 18.2 and 18.3 are supported until 2021.

You might want to upgrade to Linux Mint 19 because some bug is fixed or because you want to get some of the new features. In any case, you should know why you’re upgrading.

As excited as we are about Linux Mint 19, upgrading blindly for the sake of running the latest version does not make much sense, especially if you’re already happy and everything is working perfectly.

Make sure to read the release notes and to know about the new features so you have all the information you need before deciding whether you want to upgrade.

Make sure also to try Linux Mint 19, in live mode, to know if it works well with your hardware.

Take your time

Read all the instructions and take the time to understand them, ask for help if you’re stuck.

The instructions will ask you to make backups, to prepare system snapshots and to try Linux Mint 19 in live mode. Don’t rush into upgrading and do not take shortcuts.

Don’t panic

If you’re stuck or wondering about something don’t hesitate to ask for help:

  • You can post here in the comments section.
  • You can ask for help in the forums.
  • You can connect to the IRC (from within Linux Mint, launch Menu->Internet->Hexchat). If you’re new to IRC, please read this tutorial.