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authorAntonino A. Daplas <adaplas@gmail.com>2005-08-15 21:29:11 +0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-08-15 09:59:39 -0700
commit3edea4833a1efcd43e1dff082bc8001fdfe74b34 (patch)
tree9c1fcbc1bf513123f9612153c40582d2ff464d07 /include/linux
parent6bd49341f2806168c877e12cefca77b93437bac2 (diff)
[PATCH] intelfb/fbdev: Save info->flags in a local variable
Reported by: Pavel Kysilka (Bugzilla Bug 5059) The intelfb driver does not keep resolution set with fbset after switching to anot console and back. Steps to reproduce: initial options: tty1,tty2 - 1024x768-60 1) tty1 - fbset after booting (1024x768-60) 2) tty1 - fbset 800x600-100 tty1: 800x600-100 3) swith to tty2, swith to tty1 tty1: 1024x768-60 (the same resolution as default from kernel booting) This bug is caused by intelfb unintentionally destroying info->flags in set_par(). Therefore the flag, FBINFO_MISC_USEREVENT used to notify fbcon of a mode change was cleared causing the above problem. This bug though is not intelfb specific, as other drivers may also be affected. The fix is to save info->flags in a local variable before calling any of the driver hooks. A more definitive fix (for post 2.6.13) is to separate info->flags into one that is set by the driver and another that is set by core fbdev/fbcon. Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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