configure.ac | 2 +-
src/via_display.c | 21 ++++++++++-----------
2 files changed, 11 insertions(+), 12 deletions(-)
New commits:
commit d234cdf68ea6a27718a948918b3075ad257e8a0f
Author: Kevin Brace <kevinbr...@gmx.com>
Date: Mon Jun 13 11:17:23 2016 -0500
Version bumped to 0.4.180
This version fixes a regression that occurred at Version 0.4.177.
IGA1 now works fine with 1920 horizontal (Y direction) screen
resolution. Sorry about the inconvenience.
Signed-off-by: Kevin Brace <kevinbr...@gmx.com>
diff --git a/configure.ac b/configure.ac
index 339da33..d06b965 100644
--- a/configure.ac
+++ b/configure.ac
@@ -23,7 +23,7 @@
# Initialize Autoconf
AC_PREREQ(2.57)
AC_INIT([xf86-video-openchrome],
- [0.4.179],
+ [0.4.180],
[https://bugs.freedesktop.org/enter_bug.cgi?product=xorg&component=Driver/openchrome],
[xf86-video-openchrome])
commit c1a81a30a30d5bc571d9498a52f4780713808de1
Author: Kevin Brace <kevinbr...@gmx.com>
Date: Mon Jun 13 11:06:51 2016 -0500
IGA1 horizontal total limit is now 4128
There was a bad commit with commit c768c86. This broke the screen of
people who used a monitor capable of 1920 X 1080 screen resolution.
The regression is now fixed.
Signed-off-by: Max Rus <off_m...@mail.ru>
Signed-off-by: Kevin Brace <kevinbr...@gmx.com>
diff --git a/src/via_display.c b/src/via_display.c
index e58d7dc..d156121 100644
--- a/src/via_display.c
+++ b/src/via_display.c
@@ -1223,17 +1223,16 @@ viaIGA1ModeValid(ScrnInfoPtr pScrn, DisplayModePtr mode)
"Entered viaIGA1ModeValid.\n"));
/* Note that horizontal total being written to VGA registers is
- * shifted to the right by 3 bit positions, and then 5 is subtracted
- * from it. Hence, to check if the screen can even be valid,
- * opposite of that needs to happen. That being said, to check if the
- * number is within an acceptable range, 1 is subtracted from 5, hence,
- * 4 (5 - 1) is multiplied with 8 (i.e., 1 is shifted 3 bit positions to
- * the left) and the resulting 32 is added to 2048 to calculate the
- * maximum horizontal total IGA1 can handle. Ultimately, 2080 is the
- * largest number VIA IGP's IGA1 can handle safely. This is how
- * VIA Technologies gets to claim that IGA1 (i.e., VGA) is capable of
- * 1920 dots in the horizontal (Y) direction. */
- if (mode->CrtcHTotal > (2048 + ((1 << 3) * 4)))
+ * shifted to the right by 3 bit positions since only 9 bits are
+ * available, and then 5 is subtracted from it. Hence, to check if
+ * the screen can even be valid, opposite of that needs to happen.
+ * That being said, to check if the number is within an acceptable range,
+ * 1 is subtracted from 5, hence, 4 (5 - 1) is multiplied with 8 (i.e.,
+ * 1 is shifted 3 bit positions to the left), and the resulting 32 is
+ * added to 4096 (9 + 3 bits) to calculate the maximum horizontal total
+ * IGA1 can handle. Ultimately, 4128 is the largest number VIA IGP's
+ * IGA1 can handle. */
+ if (mode->CrtcHTotal > (4096 + ((1 << 3) * (5 - 1))))
return MODE_BAD_HVALUE;
if (mode->CrtcHDisplay > 2048)
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