[Bug 26926] New: [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

[Bug 26926] New: [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

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http://bugs.freedesktop.org/show_bug.cgi?id=26926

           Summary: [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)
           Product: DRI
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.sourceforge.net
        ReportedBy: zajec5@gmail.com


I've just tried KMS on my RV635 and my old D-SUB (analog) LCD displays colors
incorrectly when using DVI-0. When switching to DVI-1 it works fine.

Any idea what can be a reason? In both cases we use INTERNAL_KLDSCP_DACx.


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[Bug 26926] [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

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http://bugs.freedesktop.org/show_bug.cgi?id=26926





--- Comment #1 from Rafał Miłecki <zajec5@gmail.com>  2010-03-06 07:03:35 PST ---
Created an attachment (id=33810)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=33810)
dmesg.log


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[Bug 26926] [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

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http://bugs.freedesktop.org/show_bug.cgi?id=26926





--- Comment #2 from Rafał Miłecki <zajec5@gmail.com>  2010-03-06 07:04:15 PST ---
Created an attachment (id=33811)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=33811)
colors1 bad (photo)


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[Bug 26926] [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

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http://bugs.freedesktop.org/show_bug.cgi?id=26926





--- Comment #3 from Rafał Miłecki <zajec5@gmail.com>  2010-03-06 07:04:29 PST ---
Created an attachment (id=33812)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=33812)
colors1 good (screenshot)


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[Bug 26926] [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

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http://bugs.freedesktop.org/show_bug.cgi?id=26926





--- Comment #4 from Rafał Miłecki <zajec5@gmail.com>  2010-03-06 07:04:55 PST ---
Created an attachment (id=33813)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=33813)
colors2 bad (photo)


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[Bug 26926] [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

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http://bugs.freedesktop.org/show_bug.cgi?id=26926





--- Comment #5 from Rafał Miłecki <zajec5@gmail.com>  2010-03-06 07:05:16 PST ---
Created an attachment (id=33814)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=33814)
colors2 good (screenshot)


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[Bug 26926] [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

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--- Comment #6 from Alex Deucher <agd5f@yahoo.com>  2010-03-06 07:08:50 PST ---
Does UMS work ok?  I suspect it's the bg/adj values for the dac.


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[Bug 26926] [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

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http://bugs.freedesktop.org/show_bug.cgi?id=26926





--- Comment #7 from Rafał Miłecki <zajec5@gmail.com>  2010-03-06 07:11:38 PST ---
(In reply to comment #6)
> Does UMS work ok?  I suspect it's the bg/adj values for the dac.

At least radeonhd does work fine for both DVIs. Will test radeon soon.

Can you point me to some part of code or registers that I can compare?

Do we really submit other data for AtomBIOS DAC-controlling commands at all?


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[Bug 26926] [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

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http://bugs.freedesktop.org/show_bug.cgi?id=26926





--- Comment #8 from Alex Deucher <agd5f@yahoo.com>  2010-03-06 07:28:43 PST ---
(In reply to comment #7)
> (In reply to comment #6)
> > Does UMS work ok?  I suspect it's the bg/adj values for the dac.
> 
> At least radeonhd does work fine for both DVIs. Will test radeon soon.
> 
> Can you point me to some part of code or registers that I can compare?
> 
> Do we really submit other data for AtomBIOS DAC-controlling commands at all?
> 

The bg/dac adj values are golden values set in the atombios dac command tables.
 It might be a bug in the kms atom parser (I've fixed several of them recently)
or a bad paramater passed to one of the tables, or something else completely
unrelated.  Make sure your kms tree has this patch:
http://git.kernel.org/?p=linux/kernel/git/airlied/drm-2.6.git;a=commitdiff;h=6a8a2d702b33c6ed5c789f21b4e89fdf221f01ca
I'd suggest using avivotool to dump the regs and compare.  The dac regs are at
0x7000-0x706c,0x7ef0-0x7ef8 (DAC1) and 0x7100-0x716c,0x7ff0-0x7ff8 (DAC2)
the second set in each group are the dac bgadj and macro regs.


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[Bug 26926] [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26926





--- Comment #9 from Rafał Miłecki <zajec5@gmail.com>  2010-03-06 12:00:15 PST ---
I use drm-linus which contains "fix shr/shl ops".

Thanks a lot for giving registers! It gave nice results :)

# diff -u bad.log ok.log
--- bad.log     2010-03-06 20:54:42.288325112 +0100
+++ ok.log      2010-03-06 20:52:30.060416677 +0100
@@ -52,7 +52,7 @@
 0x7134: 0x02020200
 0x7138: 0x00000000
 0x713C: 0x00000000
-0x7140: 0x000001E6
+0x7140: 0x00000000
 0x7144: 0x00000000
 0x7148: 0x00000000
 0x714C: 0x00000000
@@ -66,5 +66,5 @@
 0x716C: 0x00000000
 rhd_dump: v1.3.0, git branch master, commit d6631a8c
 0x7FF0: 0x00000020
-0x7FF4: 0x00200102
+0x7FF4: 0x00202902
 0x7FF8: 0x00700251

# rhd_dump -w 0x7FF4 0x00202902 1:00.0

It made the trick. Now need just to find out why 0x7FF4 had incorrect value...


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[Bug 26926] [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

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https://bugs.freedesktop.org/show_bug.cgi?id=26926

--- Comment #10 from Rafał Miłecki <zajec5@gmail.com> 2010-04-19 11:48:24 PDT ---
Created an attachment (id=35168)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=35168)
RV635 ROM

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[Bug 26926] [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

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https://bugs.freedesktop.org/show_bug.cgi?id=26926

--- Comment #11 from Rafał Miłecki <zajec5@gmail.com> 2010-04-19 11:50:48 PDT ---
Can be duplicate of bug #27478, will try to check if I'll get access to this
RV635.

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[Bug 26926] [KMS][RV635] broken colors/fonts on DVI-0 (DVI-1 is OK)

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https://bugs.freedesktop.org/show_bug.cgi?id=26926

Alex Deucher <agd5f@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE

--- Comment #12 from Alex Deucher <agd5f@yahoo.com> 2010-04-21 22:29:07 PDT ---
This is indeed a duplicate of bug 27478.

*** This bug has been marked as a duplicate of bug 27478 ***

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