hi, i run release Fedora 39 KDE 5x / wayland drm with kernel 6.7.9-200.fc39.x86_64 x86_64 on ASUS PRIME X570-PRO motherboard, BIOS v5003 AMD Ryzen 7 3700X 8-Core Processor i've a DELL U2722D monitor BIOS vMT3102 connector is card1-HDMI-A-2 DDC/CI is enabled i've installed Intel Arc A380 from clean BIOS install, it boots fine -- gfxcard's identified, no apparent errors in system boot, & all appears to function on desktop. on system reboot -- via e.g., `shutdown -r now` -- the system reboots, with no logged errors. the Monitor displays "No HDMI signal detected", and drops into "Standby" mode. on BIOS post, the system hangs the white q-led (vga) is on; boot proceeds no further. simply hitting 'reset' button re-posts, and the system boots. no hang, no errors. this is 100% reproducible. i've done the usual dance of, replace the video card swap video slots reinstall both current & previous BIOS versions reset CMOS remove/reseat all cards, RAM nothing, so far, fixes the hang on post, with immediate success after 'reset' behavior without any solid proof yet, i suspect power management (DPMS?) is involved ... here's the current dump of (lots) system info, etc. https://gist.github.com/pgnd/9209983f5ca478b06bd5055188567f19 what further diagnostics/fixes are helpful/relevant here? if this isn't the right forum, kindly point? thx o/
