I had this problem when using Lubuntu 19 and lived with it, knowing that I would be installing version 20 this year and assuming it was just a bug that would be cleared up in the next LTS. But it is still there.
When I am scrolling a web page in Firefox the lines of text seem to ripple horizontally, almost like there is ridge in the screen, but of course there isn’t.
I’d like to know what causes this, and if there is a simple fix for it as it can make quite uncomfortable viewing.
Firstly there is no Lubuntu 19, as Lubuntu is a desktop release and uses the yy.mm release format; having more than a single release per year (as do server releases). Ubuntu has specialist snap based releases that do use yy, but Lubuntu uses debs as it’s base packaging system as all yy.mm releases do.
It sounds like you’re talking about screen tearing, which if I’m right, will require knowledge of your video hardware at a minimum. It relates to the kernel module (driver) used by the linux kernel, and my goto command to get this detail is sudo lshw -C video (list hardware of class video) You can find the kernel module in use looking for the “driver=”.
Once this is known you have clues to find the configuration file, where a ‘tear’ flag may be set to fix the issue, or other options explored. I’ll provide another ~recent query related to tearing on this site for clues as to what I’m thinking. (it may not relate exactly unless you have the same hardware, but with module details you’ll know what to look for).
Hi guys, thanks for responding.
I have tried running compton as that seemed the easiest option (I’m not very technically -minded), but it doesn’t seem to have helped. In fact it might be worse.
I ran the line of code guiverc suggested and got the following:
Looking at the Archlinux post in the linked to topic I managed to find the x11/xorg.conf.d file, but that’s where the similarity ended. I saw nothing about drivers.
Hi, Although the tearing does seem to be only affecting FireFox, the suggestion from Thomas-N does not help resolve it.
I’ve had another look at the archlinux post and I don’t understand any of it well enough to know where to start.
I may have to put up with it again, it’s only really intrusive when scrolling at speed or on heavily worded pages. A lot o f tearing issues seem to relate to video playback, which is something I don’t do much but I will check it out in case it helps.