From: Dave Airlie <airlied@xxxxxxxxxx>
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@xxxxxxxxxx>
---
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 7ccc967..6662687 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);
}
--
1.7.1
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