linux/drivers/video/console
Francisco Jerez f0c7d2b72a vgacon: prevent vgacon_deinit from touching the hardware for inactive consoles.
fbcon makes the (reasonable) assumption that it only needs to program the
hardware once, when fbcon_init() is called for the foreground console.

This doesn't always play well with vgacon because vgacon_deinit() is only
doing its job when the last console it owns is closed (when switching from
vgacon to fbcon, that's usually *after* fbcon_init() has set the new
mode).

Depending on the hardware this can cause the wrong framebuffer location to
be scanned out (e.g.  reproduced on nv05 with the nouveau framebuffer
driver).

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-23 07:39:57 -07:00
..
Kconfig sparc: Kill PROM console driver. 2009-09-15 17:04:38 -07:00
Makefile sparc: Kill PROM console driver. 2009-09-15 17:04:38 -07:00
bitblit.c video: console, use DIV_ROUND_UP 2009-09-23 07:39:56 -07:00
dummycon.c
fbcon.c fbcon: only unbind from console if successfully registered 2009-09-23 07:39:57 -07:00
fbcon.h fbcon: fix monochrome color value calculation 2008-10-02 15:53:13 -07:00
fbcon_ccw.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
fbcon_cw.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
fbcon_rotate.c
fbcon_rotate.h fbcon: fix rotate upside down crash 2009-08-07 10:39:55 -07:00
fbcon_ud.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
font_6x11.c
font_7x14.c
font_8x8.c
font_8x16.c
font_10x18.c
font_acorn_8x8.c
font_mini_4x6.c
font_pearl_8x8.c
font_sun8x16.c
font_sun12x22.c
fonts.c
mdacon.c Revert "vt: fix background color on line feed" 2008-10-14 12:12:02 -07:00
newport_con.c drivers/video/console/newport_con.c: fix read outside array bounds 2009-09-23 07:39:56 -07:00
softcursor.c
sticon.c Revert "vt: fix background color on line feed" 2008-10-14 12:12:02 -07:00
sticore.c parisc: sticore.c - check return values 2009-08-02 15:26:51 +02:00
tileblit.c fbcon: fix color generation for monochrome framebuffer 2008-02-06 10:41:18 -08:00
vgacon.c vgacon: prevent vgacon_deinit from touching the hardware for inactive consoles. 2009-09-23 07:39:57 -07:00