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authorAntonino A. Daplas <adaplas@gmail.com>2006-06-26 00:26:24 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 09:58:28 -0700
commitf8020dc560fde089becc05de1d0ada1f7f46dc51 (patch)
tree20e0c20df709072838a554215fc608c3b3543244 /kernel/time
parent2356614b08bf8769790c4f1f55c83d95f802bc51 (diff)
[PATCH] savagefb: Add state save and_restore hooks
Reported by: Rich (Bugzilla Bug 6417) "if savage driver is used in x.org together with savagefb, it results in seriously garbled and distorted screen - coupled with severe slowdowns." This bug is the result of Xorg unable to handle savagefb altering the hardware which results in X failing to start properly and/or failed console switching. Add savagefb_state_save and savagefb_state_restore. These hooks will only save and restore the extended VGA registers. Standard VGA registers will be left alone. This is enough to make savagefb play nicely with the latest Xorg savage driver, and perhaps with savage DRI. (Transient screen artifacts may appear before X loads and during console switches). (Unfortunately, blanking the screen also leaves Xorg in a blanked state, so I have to unblank the screen before Xorg loads. So I doubt if the transient screen artifacts will be completely invisible but hopefully it will only be for a shorter duration (not much).) [akpm@osdl.org: cleanups] Signed-off-by: Antonino Daplas <adaplas@pol.net> Cc: <rich@hq.vsaa.lv> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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