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xserver-xorg: fix 16bit modes

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Discovered on beaglebone black

(From OE-Core rev: 21fcb42d97e90eb76283b69ab876729f4cee7ad7)

Signed-off-by: Andreas Müller <schnitzeltony@googlemail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Andreas Müller
2017-01-26 16:33:56 +01:00
committed by Richard Purdie
parent b76161a9a8
commit 6254e28b31
2 changed files with 47 additions and 0 deletions
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46
meta/recipes-graphics/xorg-xserver/xserver-xorg/0003-modesetting-Fix-16-bit-depth-bpp-mode.patch Normal file
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@@ -0,0 +1,46 @@
From 5028ef46ff4ab0930224b71024a7349b05610d42 Mon Sep 17 00:00:00 2001
From: Stefan Agner <stefan@agner.ch>
Date: Thu, 22 Dec 2016 15:41:06 +0100
Subject: [PATCH] modesetting: Fix 16 bit depth/bpp mode
When setting DefaultDepth to 16 in the Screen section, the current
code requests a 32 bpp framebuffer, however the X-Server seems to
assumes 16 bpp.
Fixes commit 21217d02168d ("modesetting: Implement 32->24 bpp
conversion in shadow update")
Signed-off-by: Stefan Agner <stefan@agner.ch>
Upstream-Status: Submitted [1]
[1] https://lists.x.org/archives/xorg-devel/2016-December/052113.html
---
hw/xfree86/drivers/modesetting/driver.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/hw/xfree86/drivers/modesetting/driver.c b/hw/xfree86/drivers/modesetting/driver.c
index d7030e5..647ad83 100644
--- a/hw/xfree86/drivers/modesetting/driver.c
+++ b/hw/xfree86/drivers/modesetting/driver.c
@@ -930,7 +930,7 @@ PreInit(ScrnInfoPtr pScrn, int flags)
"Using 24bpp hw front buffer with 32bpp shadow\n");
defaultbpp = 32;
} else {
- ms->drmmode.kbpp = defaultbpp;
+ ms->drmmode.kbpp = 0;
}
bppflags = PreferConvert24to32 | SupportConvert24to32 | Support32bppFb;
@@ -950,6 +950,8 @@ PreInit(ScrnInfoPtr pScrn, int flags)
return FALSE;
}
xf86PrintDepthBpp(pScrn);
+ if (!ms->drmmode.kbpp)
+ ms->drmmode.kbpp = pScrn->bitsPerPixel;
/* Process the options */
xf86CollectOptions(pScrn, NULL);
--
2.7.4

1
meta/recipes-graphics/xorg-xserver/xserver-xorg_1.19.1.bb
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@@ -3,6 +3,7 @@ require xserver-xorg.inc
SRC_URI += "file://musl-arm-inb-outb.patch \
file://0001-configure.ac-Fix-check-for-CLOCK_MONOTONIC.patch \
file://0002-configure.ac-Fix-wayland-scanner-and-protocols-locat.patch \
file://0003-modesetting-Fix-16-bit-depth-bpp-mode.patch \
"
SRC_URI[md5sum] = "caa8ee7b2950abbf734347d137529fb6"
SRC_URI[sha256sum] = "79ae2cf39d3f6c4a91201d8dad549d1d774b3420073c5a70d390040aa965a7fb"