Re: G5 powermacs

[Havard Eidnes <he%NetBSD.org@localhost>]

>> Some things to try:
...
>> - in genfb.c, comment out the RI_8BIT_IS_RGB and RI_ENABLE_ALPHA flags.
>>   This will prompt genfb to setup a traditional 16 colour ANSI palette
>>   instead of an R3G3B2 one suitable for anti-aliased fonts. The colours
>>   may look wrong ( since we inherit whatever OF set up ), but should be
>>   readable.

I've now tried that as well, and it produced the same result as
the previous version: screen goes all-black, video signal is
still there, but nothing is visible.  The difff I tried with is
attached.

Regards,

- Håvard

Index: genfb.c
===================================================================
RCS file: /cvsroot/src/sys/dev/wsfb/genfb.c,v
retrieving revision 1.61
diff -u -r1.61 genfb.c
--- genfb.c     1 Jun 2017 02:45:12 -0000       1.61
+++ genfb.c     10 Jun 2017 13:51:18 -0000
@@ -556,9 +556,11 @@
        if (ri->ri_depth == 32 || ri->ri_depth == 24) {
                bool is_bgr = false;
 
+#if 0
                if (ri->ri_depth == 32) {
                        ri->ri_flg |= RI_ENABLE_ALPHA;
                }
+#endif
                prop_dictionary_get_bool(device_properties(sc->sc_dev),
                    "is_bgr", &is_bgr);
                if (is_bgr) {
@@ -580,8 +582,10 @@
                }
        }
 
+#if 0
        if (ri->ri_depth == 8 && sc->sc_cmcb != NULL)
                ri->ri_flg |= RI_ENABLE_ALPHA | RI_8BIT_IS_RGB;
+#endif
 
 
        rasops_init(ri, 0, 0);