Re: 2.6.21-rc2 radeon backlight
From: James Simmons <hidden>
Date: 2007-03-02 21:41:30
Also in:
lkml
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
quoted
quoted
yes, if i disable the radeon backlight and use the ibm acpi module, than the backlight works. if i enable the radeon backlight, the screen stays dark and i can't turn it on (i tried using radeontool to control it but nothing happened).Richard, is this actually a bug, or is it a config error or something like that? And should we track it as a post-2.6.20 regression?Why don't we compromise for 2.6.21 by marking the Radeon backlight stuff EXPERIMENTAL until the cases where IBM ACPI works and the Radeon backlight stuff does not are worked out?
How about this?
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index b8f0a11..eb54d1f 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig@@ -679,7 +679,6 @@ config FB_NVIDIA depends on FB && PCI select I2C_ALGOBIT if FB_NVIDIA_I2C select I2C if FB_NVIDIA_I2C - select FB_BACKLIGHT if FB_NVIDIA_BACKLIGHT select FB_MODE_HELPERS select FB_CFB_FILLRECT select FB_CFB_COPYAREA
@@ -708,7 +707,8 @@ config FB_NVIDIA_I2C config FB_NVIDIA_BACKLIGHT bool "Support for backlight control" - depends on FB_NVIDIA + depends on FB_NVIDIA && EXPERIMENTAL + select FB_BACKLIGHT default y help Say Y here if you want to control the backlight of your display.
@@ -717,7 +717,6 @@ config FB_RIVA tristate "nVidia Riva support" depends on FB && PCI select FB_DDC if FB_RIVA_I2C - select FB_BACKLIGHT if FB_RIVA_BACKLIGHT select FB_MODE_HELPERS select FB_CFB_FILLRECT select FB_CFB_COPYAREA
@@ -754,7 +753,8 @@ config FB_RIVA_DEBUG config FB_RIVA_BACKLIGHT bool "Support for backlight control" - depends on FB_RIVA + depends on FB_RIVA && EXPERIMENTAL + select FB_BACKLIGHT default y help Say Y here if you want to control the backlight of your display.
@@ -994,7 +994,6 @@ config FB_RADEON tristate "ATI Radeon display support" depends on FB && PCI select FB_DDC if FB_RADEON_I2C - select FB_BACKLIGHT if FB_RADEON_BACKLIGHT select FB_MODE_HELPERS select FB_CFB_FILLRECT select FB_CFB_COPYAREA
@@ -1024,7 +1023,8 @@ config FB_RADEON_I2C config FB_RADEON_BACKLIGHT bool "Support for backlight control" - depends on FB_RADEON + depends on FB_RADEON && EXPERIMENTAL + select FB_BACKLIGHT default y help Say Y here if you want to control the backlight of your display.
@@ -1044,7 +1044,6 @@ config FB_ATY128 select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT - select FB_BACKLIGHT if FB_ATY128_BACKLIGHT select FB_MACMODES if PPC_PMAC help This driver supports graphics boards with the ATI Rage128 chips.
@@ -1056,7 +1055,8 @@ config FB_ATY128 config FB_ATY128_BACKLIGHT bool "Support for backlight control" - depends on FB_ATY128 + depends on FB_ATY128 && EXPERIMENTAL + select FB_BACKLIGHT default y help Say Y here if you want to control the backlight of your display.
@@ -1067,7 +1067,6 @@ config FB_ATY select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT - select FB_BACKLIGHT if FB_ATY_BACKLIGHT select FB_MACMODES if PPC help This driver supports graphics boards with the ATI Mach64 chips.
@@ -1106,7 +1105,8 @@ config FB_ATY_GX config FB_ATY_BACKLIGHT bool "Support for backlight control" - depends on FB_ATY + depends on FB_ATY && EXPERIMENTAL + select FB_BACKLIGHT default y help Say Y here if you want to control the backlight of your display. -------------------------------------------------------------------------
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