Re: picom fails to initialize backend Reply #15 – 28 October 2020, 21:50:31 is modesettings KMS enabled?please read https://wiki.archlinux.org/index.php/hybrid_graphicshttps://wiki.archlinux.org/index.php/PRIMEold, but helpful https://www.unixmen.com/using-hybrid-graphic-card-intel-amd-arch-linux/ (no ati driver, use amdgpu)You have 2 graphics cards, you need special setting. Which GCard run at boot? Intel or ATI? Can you set it? if not probably Intel first... seems, that picom is your last problem
Re: picom fails to initialize backend Reply #16 – 29 October 2020, 14:38:05 Thank you for the articles! I'm doing it as described in the unximen article; when only using the Intel card, picom seems to run fine and with the --experimental-backends flag most screentearing is gone too. I'll use the AMD card when necessary with DRI_PRIME=1. Thanks for your help!