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From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 117131] vga_switcheroo does not switch IGP -> DIS ( IGP == i915 , DIS == radeon )
Date: Sun, 24 Apr 2016 19:28:33 +0000	[thread overview]
Message-ID: <bug-117131-2300-3IqT0qoAnp@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-117131-2300@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=117131

--- Comment #1 from Jason Vas Dias <jason.vas.dias@gmail.com> ---
Next steps: hacking X-Server & kernel drm & dri code to emit more debug log
messages .

Any suggestions as to how to bring up an X-Server on Radeon 8970M card when
Intel i915 IGP is active under Linux 4.5+ ?
I would have thought X-Server v1.18.3 should be capable of detecting if
it needs to use vga_switcheroo and be able to use it automatically by now - 
but apparently not ; and it seems impossible to get the X-Server to work
(via libfb) without doing a vga_switcheroo . 

I think the kernel needs a way of specifying an initial vga_switcheroo/switch 
state at boot, like:
   'vga_switcheroo=DIS:Pwr;IGP:Off'
.

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  reply	other threads:[~2016-04-24 19:28 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-24 19:17 [Bug 117131] New: vga_switcheroo does not switch IGP -> DIS ( IGP == i915 , DIS == radeon ) bugzilla-daemon
2016-04-24 19:28 ` bugzilla-daemon [this message]
2016-04-24 19:46 ` [Bug 117131] " bugzilla-daemon
2016-04-24 20:30 ` bugzilla-daemon
2016-04-24 20:44 ` bugzilla-daemon
2016-04-24 23:21 ` bugzilla-daemon
2016-04-25 13:58 ` bugzilla-daemon
2016-04-25 17:43 ` bugzilla-daemon
2016-04-25 17:49 ` bugzilla-daemon
2016-04-25 17:59 ` bugzilla-daemon
2016-04-25 18:49 ` bugzilla-daemon
2016-04-25 19:02 ` bugzilla-daemon
2016-04-25 19:25 ` bugzilla-daemon
2016-04-25 19:39 ` bugzilla-daemon
2016-04-25 20:19 ` bugzilla-daemon
2016-04-25 20:48 ` bugzilla-daemon
2016-04-25 20:51 ` bugzilla-daemon
2016-04-26  0:43 ` bugzilla-daemon
2016-04-26 15:26 ` bugzilla-daemon
2016-04-26 15:52 ` bugzilla-daemon
2016-04-26 16:55 ` bugzilla-daemon
2016-04-26 18:37 ` bugzilla-daemon
2016-04-26 18:38 ` bugzilla-daemon
2016-04-26 18:50 ` bugzilla-daemon
2016-04-26 22:11 ` bugzilla-daemon
2016-04-26 22:16 ` bugzilla-daemon
2016-04-26 22:20 ` bugzilla-daemon

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