Oh, sorry, for my x670 ProArt, with 7945 and/or 7950X3D, the DVI onboard is ok with both iGPU. like you with your 7000 serie.
with RTX cohabitation , just one monitor plugged on the onboard with iGPU for win desktop and the MB is acting as passtrough when i force the use of the RTX (games for ex).Note: the radeon run at full turbo speed to print 1440p desktop, and minimum 2Gb vram, 4Gb to pass all RTX signal when running games, the minimum is 2000MHz for me to keep a good signal.
And with one monitor on each, no trouble anymore, all desktops print well, i can choose with Radeon software, windows, and nvidia drivers on which i launch a game or software (video decode with cuda or cpu, and with One video recode with AMF, one with Nvidia, one with CPU only, all at the same time, a benchmark in backgrond and runing into a game, the CPU work well, no lag nor bug or whatelse, a eal hapiness those cpu, the more we load them, the more they well run ).
Thank for your info, i better understand the "Relay" role of the usb-c to dvi connection, the manual isn't very clear on this capability, USB-C monitors are relatively new.
Not a good news for me, i've planned to buy a 9950x...I will wait a bit..Good luck for the following.
PS: I had to manually fix the iGPU clock in the Ai-Tweak menu of the bios, if not, i was unable to stay more than 10 seconds in bios without a freeze or another bug. Under Windows, dwm.exe error, black screen, flicker and other surprises....And i think the CPU Vcore impact the GPU vcore when manually setted, auto setting on my MB is the most stable despite somes bugs related to lack of power in certain circonstances (those CPU are very hungry, and the relative fast start of some apps need some too immediate current, the send delay of the PSU give me sometime win err WHEA, pre leak... so i launch 2 apps at the same time..) Fix VCORE resolve those, but make appears others. just choose your pain.
