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Every framebuffer driver relies on the assumption that the set_par() function of the driver is called before drawing functions and other functions dependent on the hardware state are executed. Whenever you switch from X to a framebuffer console for the very first time, there is a chance that a broken X system has _not_ set the mode to KD_GRAPHICS, thus the vt and framebuffer code executes a screen redraw and several other functions before a set_par() is executed. This is believed to be not a bug of linux but a bug of X/xdm. At least some X releases used by SuSE and Debian show this behaviour. There was a 2nd case, but that has been fixed by Antonino Daplas on 10-dec-2005. This patch allows drivers to set a flag to inform fbcon_switch() that they prefer a set_par() call on every console switch, working around the problems caused by the broken X releases. The flag will be used by the next release of cyblafb and might help other drivers that assume a hardware state different to the one used by X. As the default behaviour does not change, this patch should be acceptable to everybody. Signed-off-by: Knut Petersen <Knut_Petersen@t-online.de> Acked-by: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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| .. | ||
| bitblit.c | ||
| dummycon.c | ||
| fbcon_ccw.c | ||
| fbcon_cw.c | ||
| fbcon_rotate.c | ||
| fbcon_rotate.h | ||
| fbcon_ud.c | ||
| fbcon.c | ||
| fbcon.h | ||
| 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 | ||
| Kconfig | ||
| Makefile | ||
| mdacon.c | ||
| newport_con.c | ||
| prom.uni | ||
| promcon.c | ||
| softcursor.c | ||
| sticon.c | ||
| sticore.c | ||
| tileblit.c | ||
| vgacon.c | ||