Okay this problem is somewhat serious...
I changed the rendering backend to Open GL 3.1, according to this post in this forum about 5 tweaks for KDE desktop, following the instructions and checking if my PC supports 3.1; and KWin crashed... I had to reboot, and after rebooting all of my previous applications started one by one, slowly and part by part!
I'm feeling something is off about the desktop- it doesn't feel that smooth and fast as before, somewhat lagging I think, and I'm seeing shimmering screen/stuttering when I scroll in Firefox...
Below is the screenshot of the compositor and what it says now:
Below is my specs after running
glxinfo | grep -i opengl
OpenGL vendor string: Intel Open Source Technology Center OpenGL renderer string: Mesa DRI Intel(R) Haswell Desktop OpenGL core profile version string: 4.5 (Core Profile) Mesa 17.1.8 OpenGL core profile shading language version string: 4.50 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile OpenGL core profile extensions: OpenGL version string: 3.0 Mesa 17.1.8 OpenGL shading language version string: 1.30 OpenGL context flags: (none) OpenGL extensions: OpenGL ES profile version string: OpenGL ES 3.1 Mesa 17.1.8 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10 OpenGL ES profile extensions:
The screenshot I provided says I can alternatively enable Xrender; when I run
inxi -Fx, you guys can see that there's a message about xrandr, that it's not found(this has being shown since installation):
Resuming in non X mode: xrandr not found. For package install advice run: inxi --recommends System: Host: apollonius Kernel: 4.9.48-1-MANJARO x86_64 (64 bit gcc: 7.1.1) Desktop: KDE Plasma 5.10.5 (Qt 5.9.1) Distro: Manjaro Linux Machine: Device: desktop System: ASUS product: All Series Mobo: ASUSTeK model: H81M-C v: Rev X.0x BIOS: American Megatrends v: 2401 date: 06/02/2015 CPU: Quad core Intel Core i5-4460 (Haswell rev.3) (-MCP-) cache: 6144 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 25549 clock speeds: max: 3400 MHz 1: 800 MHz 2: 803 MHz 3: 800 MHz 4: 810 MHz Graphics: Card: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller bus-ID: 00:02.0 Display Server: N/A drivers: intel (unloaded: modesetting) tty size: 133x34 Audio: Card Intel 8 Series/C220 Series High Definition Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0
Bottom line, what's my next step and what should be done now?