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| author | Michal Januszewski <spock@gentoo.org> | 2008-10-15 22:03:51 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 11:21:45 -0700 |
| commit | 4d31a2b74c6d063362ae10ce3be3e80d8713bf23 (patch) | |
| tree | c125a2e581620a333437bcc5b3e75d24af928c58 /drivers/video | |
| parent | 5ab4840968cd094586f65fce978e35c66d25ac78 (diff) | |
| download | linux-4d31a2b74c6d063362ae10ce3be3e80d8713bf23.tar.gz linux-4d31a2b74c6d063362ae10ce3be3e80d8713bf23.tar.bz2 linux-4d31a2b74c6d063362ae10ce3be3e80d8713bf23.zip | |
fbdev: ignore VESA modes if framebuffer does not support them
Currently, it is possible to set a graphics VESA mode at boot time via the
vga= parameter even when no framebuffer driver supporting this is
configured. This could lead to the system booting with a black screen,
without a usable console.
Fix this problem by only allowing to set graphics modes at boot time if a
supporting framebuffer driver is configured.
Signed-off-by: Michal Januszewski <spock@gentoo.org>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 3b296e410f91..6210755cf6ab 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -76,6 +76,14 @@ config FB_DDC select I2C default n +config FB_BOOT_VESA_SUPPORT + bool + depends on FB + default n + ---help--- + If true, at least one selected framebuffer driver can take advantage + of VESA video modes set at an early boot stage via the vga= parameter. + config FB_CFB_FILLRECT tristate depends on FB @@ -681,6 +689,7 @@ config FB_VESA select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT + select FB_BOOT_VESA_SUPPORT help This is the frame buffer device driver for generic VESA 2.0 compliant graphic cards. The older VESA 1.2 cards are not supported. @@ -1117,6 +1126,7 @@ config FB_INTEL select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT + select FB_BOOT_VESA_SUPPORT help This driver supports the on-board graphics built in to the Intel 830M/845G/852GM/855GM/865G/915G/915GM/945G/945GM/965G/965GM chipsets. @@ -1469,6 +1479,7 @@ config FB_SIS select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT + select FB_BOOT_VESA_SUPPORT help This is the frame buffer device driver for the SiS 300, 315, 330 and 340 series as well as XGI V3XT, V5, V8, Z7 graphics chipsets. |