alan-g59 Well, my point was more about trying to find out what Mint is doing differently than Solus; I was not really trying to suggest that you should try anything, other than finding what driver you were using with Mint ...
I don't really know what you are trying to do with the intel.modset=0, and no, I would not mess with any of this.
In MY COMPUTER, if I want to use the modesetting driver, I just edit 20-intel.conf file, and replace the driver by modesetting, similar to the config example here https://wiki.gentoo.org/wiki/Intel. However, I don't know if this is the Solus way of doing thing; I just did it as some point for testing purposes.

      Hothr Well, I rode it. However, I'm sad to announce that /etc/portage/make.conf file in Solus doesn't exist. That's why I can't enable glamour on the /etc/X11/xorg.conf.d/20-modesetting.conf file, wich does exist.

          alan-g59 The /etc/portage/make.conf is something specific to Gentoo; it doesn't exist in Solus, and doesn't have to. Maybe I was not clear enough in my link (sorry about that), so forget about it. What I wanted to show was simply where in the 20-intel.conf the modesetting argument should be.

              Hothr Sorry. I'm not a native english-speaker so sometimes I've got comprehension problems. This is even worst when someone doesn't write but… Speak.

              Well, to get it better, I have to ask you the next thing : in the /etc/X11/xorg.conf.d/20-intel.conf file, do I have to replace Driver "intel" by driver "intel" "modesetting" ?

              I just get myself lost. Please, help me.

                  alan-g59 For my computer, I would just put Driver "modesetting" (but keep the Section "Device", Identifier, EndSection), logout and login. But be prudent when playing with drivers ... It can lead to black screen ...

                      Hothr It could totally work but everything was slower. At scrolling, at minimizing a window, at maximizing a window, etc. Even a new tearing appeared scrolling on Vivaldi browser..

                      But it was right on Telegram for example.

                      So I think something is missing in the configuration you proposed me.

                      I truly believe we can do it but we need patience.

                          Hothr

                          Section "Device"
                          Identifier "Intel Graphics"
                          Driver "intel"
                          Option "TearFree" "true"
                          Option "AccelMethod" "sna"
                          EndSection

                          AND

                          Graphics:
                          Device-1: Intel 2nd Generation Core Processor Family Integrated Graphics
                          vendor: Micro-Star MSI driver: i915 v: kernel bus ID: 00:02.0
                          Display: x11 server: X.Org 1.20.5 driver: intel resolution: 1920x1080~60Hz
                          OpenGL: renderer: Mesa DRI Intel Sandybridge Desktop v: 3.3 Mesa 19.0.6
                          direct render: Yes

                            6 days later

                            Any news ? I still have that problem

                            I also have older sony vaio laptop with sandybridge and I've solved my tearing in Firefox with hardware acceleration enabled because Firefox hardware acceleration is disabled by default.
                            In address bar type about:config and search "layers.acceleration.force-enabled" and just double click it so the value is "true". In "preferences" in Firefox under performance I've unchecked "Use recommended performance settings"...just in case, and leave "Hardware acceleration" checked 🙂. And also in 20-intel.conf file I only have Tearfree option and that even solved my problem with gnome mpv when client side decorations are "on"
                            I am using Gnome version of Solus.
                            Hope this will help you.

                              MTech It could totally be a solution for Firefox. But it is not for Telegram and Thunderbird apps for example. That problem is so awful. :/

                              Anyways, thanks you Mtech.

                                  alan-g59 No problem. It's a common problem on all linux disrtibutions because of xorg. Maybe you can try Fedora because Fedora is using Wayland by default.

                                      MTech I did not have that problem when I was a Linux Mint Cinnamon user.

                                      And fact is Budgie desktop is not available with Fedora.

                                      I felt in love with Solus because of Budgie. Also, because Solus is very light (only 2GB ram is required), not like Ubuntu Budgie.

                                      Overmore, because Solus updates all his softwares, including Libreoffice. This is not the case of Linux Mint. To have recent versions of softwares, you have to use flatpack or snap. (Worst of all, Linux Mint could totally prohibite Snap in the future to protect apt.)

                                      Finally, I love Solus because this OS is easier than a Fedora distro or a Manjaro distro.

                                      So yes, switching to other OS is not the solution. The solution could be configuring this to fix this. How ? That's the question. 😭

                                        alan-g59 Preferences -> Advanced -> Config Editor
                                        Then it's pretty much the same as in Firefox, just keep in mind that Thunderbird engine is always a few versions behind the Firefox one so settings that have been added in the recent versions of Firefox won't work.

                                            May be the compositor is having issue..recently i tried i3 WM with compton and firefox started screen tearing ....Same machine with Budgie there is no screen tearing...Anyone have knowledge about Budgie compositor (changing compositor settings) can give a try and let us know plz.

                                              kyrios I added this to Thunderbird. Thanks. But Telegram still does this to me… 🙁

                                              viyoriya If you think the problem is due to the Solus compositor, well… Maybe.

                                              What compositor uses Linux Mint Cinnamon ?

                                                  viyoriya We just pushed an update of compton today, previous update was in April so between first half of April and this afternoon it wasn't touched.

                                                    8 days later