ffs_whatever's post in No output da HDMI — Open Core — i5 9600k — ROG STRIX H370i was marked as the answer
June 3, 2020
Ragazzi non potete capire (anzi certo che potete capire) che gioia...
Ci siamo riusciti. Descrivo qui il problema e soluzione sperando che nessun'altro debba beccarsi questo mal di testa.
PROBLEMA:
Intel UHD 630 mostra solo 7MB di VRAM, schermo nero in HDMI.
HARDWARE:
ASUS ROG STRIX H370i
Intel i5 9600k / i5 8400
SMBIOS: 18,1 / 19,1
SOLUZIONE:
La config postata qui da @br6 funziona.
Mi capita di dover staccare e riattaccare il cavo HDMI dopo / durante il logo di boot.
Ma a questo punto mi sta più che bene.
Ho rimandato indietro la 5500XT.
DeviceID: 923E0000
AAPL,ig-platform-id: 0000923E
I valori delle patch sono:
Conn0: BusID = 5 — Index 1 — Pipe 18 (0x12)
Conn1: BusID = 2 — Index 2 — Pipe 18 (0x12)
Conn2: BusID = 4 — Index 3 — Pipe 18 (0x12)
Conn3: BusID = 0 — Index 0xFFFFFFFF — Pipe 0 (Dummy Conn)
Riporto qui l'intera sezione Devices / DeviceProperties:
<key>PciRoot(0x0)/Pci(0x2,0x0)</key>
<dict>
<key>AAPL,ig-platform-id</key>
<data>AACSPg==</data>
<key>device-id</key>
<data>kj4AAA==</data>
<key>framebuffer-con0-busid</key>
<data>BQAAAA==</data>
<key>framebuffer-con0-enable</key>
<data>AQAAAA==</data>
<key>framebuffer-con0-flags</key>
<data>xwMAAA==</data>
<key>framebuffer-con0-index</key>
<data>AQAAAA==</data>
<key>framebuffer-con0-pipe</key>
<data>EgAAAA==</data>
<key>framebuffer-con0-type</key>
<data>AAgAAA==</data>
<key>framebuffer-con1-busid</key>
<data>AgAAAA==</data>
<key>framebuffer-con1-enable</key>
<data>AQAAAA==</data>
<key>framebuffer-con1-flags</key>
<data>xwMAAA==</data>
<key>framebuffer-con1-index</key>
<data>AgAAAA==</data>
<key>framebuffer-con1-pipe</key>
<data>EgAAAA==</data>
<key>framebuffer-con1-type</key>
<data>AAgAAA==</data>
<key>framebuffer-con2-busid</key>
<data>BAAAAA==</data>
<key>framebuffer-con2-enable</key>
<data>AQAAAA==</data>
<key>framebuffer-con2-flags</key>
<data>xwMAAA==</data>
<key>framebuffer-con2-index</key>
<data>AwAAAA==</data>
<key>framebuffer-con2-pipe</key>
<data>EgAAAA==</data>
<key>framebuffer-con2-type</key>
<data>AAgAAA==</data>
<key>framebuffer-con3-busid</key>
<data>AAAAAA==</data>
<key>framebuffer-con3-enable</key>
<data>AQAAAA==</data>
<key>framebuffer-con3-flags</key>
<data>IAAAAA==</data>
<key>framebuffer-con3-index</key>
<data>/////w==</data>
<key>framebuffer-con3-pipe</key>
<data>AAAAAA==</data>
<key>framebuffer-con3-type</key>
<data>AQAAAA==</data>
<key>framebuffer-patch-enable</key>
<data>AQAAAA==</data>
</dict>
Grazie del supporto!
Tral'altro ieri notte ho fatto anche l'USB Mapping come consigliato da @Gengik84.
Oggi posso urlare a gran voce: G R A Z I E I N T E R N E T :rotfl: