Screen graininess/distortion in some applications, Xorg 1.20.11, i3 4.17.1, gfx intel i915
by Grobbendonk from LinuxQuestions.org on (#5QQSQ)
Hi,
I'm getting a problem with some applications I'm running on this laptop, where things like menus, tooltips and graphic buttons glitch as they first display.
The glitches update and correct within a couple of seconds, but also pause display of other things while they happen, so if I'm running my cursor over a menu bar or graphical option, the glitch on the first hover stops the next pop-up/hover rendering. Sometimes, the glitching is repeatable, sometimes it only happens on the first display (like there's a cache of the image and the cache holds the right one).
The glitch looks like a short line of pixels have been displaced in the image, usually staggered through the whole lot. It is very much like the sort of left/right glitching TV and film often use to indicate a disturbed display of something.
Example applications are the Mu editor (big icons at the top glitch), the tooltips for the extension icons in Chrome and Vivaldi, and the icons on screenrec. But applications like Franz, Netbeans and Steam do not do it at all.
One thing I suspect may be quite telling is that if I start the glitching applications as root from the command line, they do not glitch.
I've tried making my root environment the same as my plain user one (setting all the XDG environment variables root doesn't usually have for example), but root still has no problem running them.
I'm stuck on what to look at next, any pointers would be very welcome!
Xorg 1.20.11,
Window manager is i3 4.17.1,
Graphics card (sorry, not actually sure, hwinfo chucks out a lot of numbers, but includes intel i915)
DISTRIB_ID=Pop
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Pop!_OS 20.04 LTS"
I'm getting a problem with some applications I'm running on this laptop, where things like menus, tooltips and graphic buttons glitch as they first display.
The glitches update and correct within a couple of seconds, but also pause display of other things while they happen, so if I'm running my cursor over a menu bar or graphical option, the glitch on the first hover stops the next pop-up/hover rendering. Sometimes, the glitching is repeatable, sometimes it only happens on the first display (like there's a cache of the image and the cache holds the right one).
The glitch looks like a short line of pixels have been displaced in the image, usually staggered through the whole lot. It is very much like the sort of left/right glitching TV and film often use to indicate a disturbed display of something.
Example applications are the Mu editor (big icons at the top glitch), the tooltips for the extension icons in Chrome and Vivaldi, and the icons on screenrec. But applications like Franz, Netbeans and Steam do not do it at all.
One thing I suspect may be quite telling is that if I start the glitching applications as root from the command line, they do not glitch.
I've tried making my root environment the same as my plain user one (setting all the XDG environment variables root doesn't usually have for example), but root still has no problem running them.
I'm stuck on what to look at next, any pointers would be very welcome!
Xorg 1.20.11,
Window manager is i3 4.17.1,
Graphics card (sorry, not actually sure, hwinfo chucks out a lot of numbers, but includes intel i915)
DISTRIB_ID=Pop
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Pop!_OS 20.04 LTS"