> I applied the patches, and I still have the same results on my laptop.
>
> I have a Dell Latitude C640 and my screen won't come back after a suspend.
> The machine works fine besides that.
OK, I think this is not related with ACPI CA code update.
Our device driver (maybe syscons?) or X server issue.
> Do you have any idea/advice how this can be debugged?
If you have this problem w/ X running, and don't have w/o X,
please try attached patches.
Thanks
Index: isa/syscons_isa.c
===================================================================
RCS file: /home/ncvs/src/sys/isa/syscons_isa.c,v
retrieving revision 1.17
diff -u -r1.17 syscons_isa.c
--- isa/syscons_isa.c 30 Jun 2001 10:15:06 -0000 1.17
+++ isa/syscons_isa.c 16 Feb 2002 13:11:50 -0000
@@ -88,6 +88,39 @@
return sc_attach_unit(device_get_unit(dev), device_get_flags(dev));
}
+static int sc_cur_scr;
+
+static int
+scsuspend(device_t dev)
+{
+ int retry = 10;
+ static int dummy;
+ sc_softc_t *sc;
+
+ sc = &main_softc;
+ sc_cur_scr = sc->cur_scp->index;
+ do {
+ sc_switch_scr(sc, 0);
+ if (!sc->switch_in_progress) {
+ break;
+ }
+ tsleep(&dummy, 0, "scsuspend", 100);
+ } while (retry--);
+
+ return (0);
+}
+
+static int
+scresume(device_t dev)
+{
+ sc_softc_t *sc;
+
+ sc = &main_softc;
+ sc_switch_scr(sc, sc_cur_scr);
+
+ return (0);
+}
+
int
sc_max_unit(void)
{
@@ -230,6 +263,8 @@
DEVMETHOD(device_identify, scidentify),
DEVMETHOD(device_probe, scprobe),
DEVMETHOD(device_attach, scattach),
+ DEVMETHOD(device_suspend, scsuspend),
+ DEVMETHOD(device_resume, scresume),
{ 0, 0 }
};
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