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| author | Dave Airlie <airlied@redhat.com> | 2010-12-21 01:41:17 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2011-03-22 17:22:19 +0900 |
| commit | 32b98bf8752c5483481f77d48934aba26c967fcd (patch) | |
| tree | 4c06935ff1b8d6393802a38635377a0d34149187 /drivers/video | |
| parent | 4295f9bf74a885da390abc49a3b42a011c1bb890 (diff) | |
| download | linux-32b98bf8752c5483481f77d48934aba26c967fcd.tar.gz linux-32b98bf8752c5483481f77d48934aba26c967fcd.tar.bz2 linux-32b98bf8752c5483481f77d48934aba26c967fcd.zip | |
fbcon: fix situation where fbcon gets deinitialised and can't reinit.
Situation as follow:
2 GPUs + vesafb + kms.
GPU 1 is primary, vesafb binds to it as fb0
radeon loads
GPU 0 loads as fb1
GPU 1 loads, vesafb gets kicked off which causes fb0 to unbind
console, which causes the dummy console to rebind.
this means fbcon_deinit gets called, which calls fbcon_exit
since the console isn't bound anymore and we set fbcon_has_exited.
GPU 1 creates a new fb0 which is primary and we want to be console.
fbcon_fb_registered gets called sets the primary up and calls set_con2fb_map,
however as fbcon_has_exited is set nothing further ever happens.
This patch bypasses the fbcon_has_exited and checks if the console is unbound,
if its unbound it calls the fbcon_takeover which calls the vt layer to
call the fbcon_startup method and everthing works.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/console/fbcon.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index 9c092b8d64e6..c58393402da2 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -823,10 +823,10 @@ static int set_con2fb_map(int unit, int newidx, int user) if (oldidx == newidx) return 0; - if (!info || fbcon_has_exited) + if (!info) return -EINVAL; - if (!err && !search_for_mapped_con()) { + if (!search_for_mapped_con() || !con_is_bound(&fb_con)) { info_idx = newidx; return fbcon_takeover(0); } |