its just random data in the framebuffer (the region of memory allocated for compositing the screen output, kind of like a blank canvas that gets repainted with even screen refresh)
I am sure you know the basic principle of how RAM works, and that its volatile, looses data when powered off etc. etc.
so every time you turn your device off, this region of memory can be affected by random data electrical fields (by nature and electrical things around you) and it has random data stored in it due to these fields switching on and off the transistors inside…
you can simulate this effect by FIRST entering framebuffer console (ctrl + alt + f1)
and executing cat /dev/urandom/ > /dev/fb0
how to fix ? @hyphop might know the answer better than me
linux-rc, mesa-git (glamor on), manjaro kde plasma, all settings default…
Its not a big issue, but just for minor milliseconds, i am seeing glitches on screen which fix themselves… i think its something related to the screen compositer but not sure… I am using x11 session, will also try wayland today to see if its any better… i will try to take a picture as well, but its very momentary so its difficult.
@Spikerguy
I updated a fresh clean manjaro install and didn’t install any Linux RC or Mesa git. Just out of box update but I faced issue of desktop black issue. Then I followed advice to create noglamoregl in usrsharex11xorg and now desktop is normal but all colors are inverted, YouTube icon is green and mostly all things are green.
EDIT : the login page has correct colors but as soon as I enter password and desktop loads, it’s all greenish and random colors as shown in above picture.
Ok, I installed linux-rc and mesa-git again and disabled the noglamoregl script. I also set the governor to performance for all cores… Now the desktop colors are good, overall smoothness is much much better and mouse flickering is very improved but still flickers…
I used cpupower-gui to change the governors and till now everything looks much improved.
I also saw that kwayland session is unstable and crashes a lot, is there any way to improve it or better to use x11 for now?
Lastly, if i want to convert manjaro-kde to manjaro gnome, should i follow this arch wiki steps or is there any updated procedure for this nowadays? Or if its not recommended?
THis WIki:
Downloaded 21.04 from manjaro website and tried to flash thhhrough Krescue but it didn’t let me, telling image not suitable for vim3.
I think hyphop should upload the new images to dl. Khadas. Com so we can download in Krescue through proper way.
Also tried to make a boot able SD using 21.03 but it failed to properly boot and went to emergency mode terminal after the initial loading splash screen… @Spikerguy
Boot script version, which you downloaded from the release. Need Android in emmc to boot from sd card.
Uboot version which can be flashed directly on emmc and can be repacked for krescue. I didnt build it yet for 21.04 yet.
There is basically nothing new in old and new releases if you upgrade the old images you will have the latest packages. While you can flash new kresq image once it is available.
Whenever i reboot or shut down manjaro, the process hangs at
A stop job is running for WPA SUPPLICANT
A stop job is running for NETWORK manager.
It takes a lot of time, and usually i tend to force reboot or shutdown by pulling the plug. Can you please help in the right direction as i have googled but not found any proper solution.
[yasir@yasirvim ~]$ sudo systemctl disable watchdog
[sudo] password for yasir: Failed to disable unit: Unit file watchdog.service does not exist.
[yasir@yasirvim ~]$
Further today I also tried to mask the wpa_supplicant service however as soon as i did that, nmcli and nmtui were unable to detect any wireless network.
When I try to remove/uninstall wpa_supplicant using pamac, it tries to uninstall a whole load of other plasma things which i suspect might break my OS so i didnt uninstall.
