use the eMac PowerMac4,4 connector table on eMac PowerMac6,4

avoids black screen on boot

patch from Alex Deucher in
https://gitlab.freedesktop.org/drm/amd/-/issues/2844

reported and tested by Nuno Vasconcellos

diff --git a/sys/dev/pci/drm/radeon/radeon_combios.c b/sys/dev/pci/drm/radeon/radeon_combios.c
index 25146cc..379081f 100644 (file)
--- a/sys/dev/pci/drm/radeon/radeon_combios.c
+++ b/sys/dev/pci/drm/radeon/radeon_combios.c
@@ -1500,7 +1500,8 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
                } else if (of_machine_is_compatible("PowerMac3,5")) {
                        /* PowerMac G4 Silver radeon 7500 */
                        rdev->mode_info.connector_table = CT_MAC_G4_SILVER;
-               } else if (of_machine_is_compatible("PowerMac4,4")) {
+               } else if (of_machine_is_compatible("PowerMac4,4") ||
+                          of_machine_is_compatible("PowerMac6,4")) {
                        /* emac */
                        rdev->mode_info.connector_table = CT_EMAC;
                } else if (of_machine_is_compatible("PowerMac10,1")) {