[haiku-bugs] Re: [Haiku] #8329: Mode setting issues on hardware with Kaleidoscope encoders (was: Laptops using lvds can't set video modes due to lack of special lvds edid read function.)

From: "kallisti5" <trac@xxxxxxxxxxxx>
Date: Fri, 02 Mar 2012 16:00:25 -0000

#8329: Mode setting issues on hardware with Kaleidoscope encoders
-------------------------------------+-------------------------------------
   Reporter:  kallisti5              |      Owner:  kallisti5
       Type:  bug                    |     Status:  assigned
   Priority:  critical               |  Milestone:  R1/alpha4
  Component:                         |    Version:  R1/Development
  Drivers/Graphics/radeon_hd         |   Keywords:  lvds
 Resolution:                         |   Blocking:  8059, 8154, 8289, 8310,
 Blocked By:                         |  8331
Has a Patch:  0                      |   Platform:  All
-------------------------------------+-------------------------------------
Changes (by kallisti5):

 * priority:  blocker => critical


Old description:

> We need to generate fake edid information based on the output of a
> special LVDS information AtomBIOS call.
>
> The lack of this information prevents several laptop LCD displays from
> modesetting properly.
>
> Code:
> http://cgit.haiku-os.org/haiku/tree/src/add-
> ons/accelerants/radeon_hd/connector.cpp#n127
>
> Incomplete function:
> http://cgit.haiku-os.org/haiku/tree/src/add-
> ons/accelerants/radeon_hd/connector.cpp#n156

New description:

 It seems hardware with Kaleidoscope encoders are consistently seeing mode
 setting issues.

 Issue Map:
 https://docs.google.com/spreadsheet/ccc?key=0Arnu-
 hcq_YP7dFBPcHppeTQ2b0hXeG81c1dYb2RLNVE

--

Comment:

 Changing from lvds issue to more general encoder issue.

 Tracking issue here:
 https://docs.google.com/spreadsheet/ccc?key=0Arnu-
 hcq_YP7dFBPcHppeTQ2b0hXeG81c1dYb2RLNVE

 This seems more like a general issue with mode setting on cards with
 Kaleidoscope encoders after correlating the issues.

 I am standing up a test machine with Kaleidoscope encoders to try and
 reproduce the issue.

-- 
Ticket URL: <http://dev.haiku-os.org/ticket/8329#comment:17>
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[haiku-bugs] Re: [Haiku] #8329: Mode setting issues on hardware with Kaleidoscope encoders (was: Laptops using lvds can't set video modes due to lack of special lvds edid read function.)

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