From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Airlie Date: Tue, 21 Dec 2010 01:41:17 +0000 Subject: [PATCH 3/3] fbcon: fix situation where fbcon gets deinitialised and can't reinit. Message-Id: <1292895677-4242-4-git-send-email-airlied@gmail.com> List-Id: References: <1292895677-4242-1-git-send-email-airlied@gmail.com> In-Reply-To: <1292895677-4242-1-git-send-email-airlied@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.sf.net, linux-kernel@vger.kernel.org, Dave Airlie From: Dave Airlie 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 --- 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