I wanted to add a note about why I initially proposed the modparam
enable_dp_mst: --
The problem I was facing is that an external DisplayPort adapter
(Sunix DPD2001: https://sunix.com/en/product_detail.php?pid=1720),
supporting both MST and SST, had no means of choosing SST
("splitting", single di
use of
single-stream transport (SST).
v2: rename parameter to conform to style
v3: add signoff
Signed-off-by: Nathan Schulte
---
drivers/gpu/drm/i915/i915_params.c | 5 +
drivers/gpu/drm/i915/i915_params.h | 1 +
drivers/gpu/drm/i915/intel_dp.c| 3 +++
3 files changed, 9 insertions(+)
Updated to resolve merge conflicts and rename parameter to match module style.
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Adds an (unsafe; auto-kernel-tainting) boolean module parameter to the i915
drm driver: "enable_dp_mst", which is enabled by default. Disabling the
parameter forces newly connected DisplayPort sinks to report as not
supporting multi-stream transport (MST), thus "forcing" the use of
single-stream t
Adds an (unsafe; auto-kernel-tainting) boolean module parameter to the i915
drm driver: "force_dp_sst", which is disabled by default. Enabling the
parameter forces newly connected DisplayPort sinks to report as not
supporting multi-stream transport (MST), thus "forcing" the use of
single-stream tr
to avoid creating holes, as per existing comment
---
drivers/gpu/drm/i915/i915_drv.h | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 515e335..4b84373 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
d sibling logic elsewhere, or extra
state tracking, to properly handle recovery on a per-connector/connection basis.
It's possible that I've even missed some error handling/recovery
logic/assumption that makes this unstable for even module-wide support. As
such, th
On 06/17/2015 09:56 AM, Nathan Schulte wrote:
I'll give these two patches a try and report back.
These two patches worked beautifully. Thanks! I assume you can take
care of getting them included upstream?
--
Nate
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On 06/17/2015 04:13 AM, Chris Wilson wrote:
On Wed, Jun 17, 2015 at 09:46:25AM +0100, Chris Wilson wrote:
I think this is the right fix:
diff --git a/xrandr.c b/xrandr.c
index fbfd93e..c0feac3 100644
--- a/xrandr.c
+++ b/xrandr.c
@@ -3029,7 +3029,7 @@ main (int argc, char **argv)
i
I am running Debian Sid on a laptop machine with an Intel Haswell CPU
with Intel HD 4600 graphics.
$ Xorg -version
X.Org X Server 1.17.1
Release Date: 2015-02-10
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.16.0-4-amd64 x86_64 Debian
Current Operating System: Linux desmas-
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