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-rw-r--r--man/r128.man15
1 files changed, 13 insertions, 2 deletions
diff --git a/man/r128.man b/man/r128.man
index 201f3dfb..5168a48e 100644
--- a/man/r128.man
+++ b/man/r128.man
@@ -19,7 +19,8 @@ full support for 8, 15, 16 and 24 bit pixel depths, hardware
acceleration of drawing primitives, hardware cursor, video modes up to
1800x1440 @ 70Hz, doublescan modes (e.g., 320x200 and 320x240), gamma
correction at all pixel depths, a fully programming dot clock and robust
-text mode restoration for VT switching.
+text mode restoration for VT switching. Dualhead is supported on M3/M4
+mobile chips.
.SH SUPPORTED HARDWARE
The
.B r128
@@ -108,7 +109,11 @@ are used, the system may hang.
Enable or disable use of an OS-specific framebuffer device interface
(which is not supported on all OSs). See fbdevhw(__drivermansuffix__)
for further information.
-Default: off.
+Default:
+.BI on
+for PowerPC,
+.BI off
+for other architectures.
.TP
.BI "Option \*qDMAForXv\*q \*q" boolean \*q
Try or don't try to use DMA for Xv image transfers. This will reduce CPU
@@ -135,6 +140,12 @@ on PowerPC and
.B on
on other architectures.
+.PP
+.B Dualhead Note:
+Changing modes on crtc2 in dualhead mode causes problems in
+some configurations. The workaround is to switch the mode, change to another
+VT, then change back.
+
.SH "SEE ALSO"
__xservername__(__appmansuffix__), __xconfigfile__(__filemansuffix__), xorgconfig(__appmansuffix__), Xserver(__appmansuffix__), X(__miscmansuffix__)
.SH AUTHORS