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50 lines
1.7 KiB
Diff
50 lines
1.7 KiB
Diff
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From: Takashi Iwai <tiwai@suse.de>
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Date: Fri, 25 Jan 2013 17:08:03 +0100
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Subject: [PATCH] drm/cirrus: Use 16bpp as default
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Patch-mainline: Submitted
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References: bnc#799216
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We've got a bug report that GNOME on QEMU shows wrong colors.
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It turned out that it's because Cairo doesn't support 24bpp well.
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This hasn't been an issue until now because we (at least SUSE and
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Fedora) have a patch to use 16bpp for QEMU in Xorg cirrus UMS driver.
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Since cirrus KMS driver is mainly targeted for the use on QEMU/KVM, we
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should choose 16bpp as default, too.
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Also, it's not convenient to set the default bpp in multiple places.
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cirrus_fbdev_init() should check the original preferred depth set in
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cirrus_modeset_init().
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Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=799216
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Signed-off-by: Takashi Iwai <tiwai@suse.de>
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---
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drivers/gpu/drm/cirrus/cirrus_fbdev.c | 2 +-
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drivers/gpu/drm/cirrus/cirrus_mode.c | 2 +-
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2 files changed, 2 insertions(+), 2 deletions(-)
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--- a/drivers/gpu/drm/cirrus/cirrus_fbdev.c
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+++ b/drivers/gpu/drm/cirrus/cirrus_fbdev.c
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@@ -273,7 +273,7 @@ int cirrus_fbdev_init(struct cirrus_devi
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{
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struct cirrus_fbdev *gfbdev;
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int ret;
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- int bpp_sel = 24;
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+ int bpp_sel = cdev->dev->mode_config.preferred_depth;
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/*bpp_sel = 8;*/
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gfbdev = kzalloc(sizeof(struct cirrus_fbdev), GFP_KERNEL);
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--- a/drivers/gpu/drm/cirrus/cirrus_mode.c
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+++ b/drivers/gpu/drm/cirrus/cirrus_mode.c
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@@ -588,7 +588,7 @@ int cirrus_modeset_init(struct cirrus_de
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cdev->dev->mode_config.max_height = CIRRUS_MAX_FB_HEIGHT;
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cdev->dev->mode_config.fb_base = cdev->mc.vram_base;
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- cdev->dev->mode_config.preferred_depth = 24;
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+ cdev->dev->mode_config.preferred_depth = 16;
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/* don't prefer a shadow on virt GPU */
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cdev->dev->mode_config.prefer_shadow = 0;
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