[Bug 28774] New: RS780: No picture over HDMI

[Bug 28774] New: RS780: No picture over HDMI

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https://bugs.freedesktop.org/show_bug.cgi?id=28774

           Summary: RS780: No picture over HDMI
           Product: DRI
           Version: XOrg CVS
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: zajec5@gmail.com


This is netbook MSI U230 with RS780 using drm-radeon-testing.

When I connect TV using HDMI I can see it's resolutions in xrandr and even
enabling it seems to work fine (1920x1080 is selected, my desktop expands) but
there is nothing displayed on TV.

I've tried KMS radeon, DDX radeon, DDX radeonhd. Same result for each.

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[Bug 28774] RS780: No picture over HDMI

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https://bugs.freedesktop.org/show_bug.cgi?id=28774

--- Comment #1 from Rafał Miłecki <zajec5@gmail.com> 2010-06-27 00:18:30 PDT ---
Created an attachment (id=36529)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=36529)
[KMS] Xorg.0.log

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[Bug 28774] RS780: No picture over HDMI

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https://bugs.freedesktop.org/show_bug.cgi?id=28774

--- Comment #2 from Rafał Miłecki <zajec5@gmail.com> 2010-06-27 00:19:02 PDT ---
Created an attachment (id=36530)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=36530)
[KMS] dmesg

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[Bug 28774] RS780: No picture over HDMI

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https://bugs.freedesktop.org/show_bug.cgi?id=28774

--- Comment #3 from Rafał Miłecki <zajec5@gmail.com> 2010-06-27 00:19:31 PDT ---
Created an attachment (id=36531)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=36531)
[KMS] regs dump

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[Bug 28774] RS780: No picture over HDMI

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https://bugs.freedesktop.org/show_bug.cgi?id=28774

--- Comment #4 from Rafał Miłecki <zajec5@gmail.com> 2010-06-27 00:20:40 PDT ---
Created an attachment (id=36532)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=36532)
[UMS r] Xorg.0.log

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[Bug 28774] RS780: No picture over HDMI

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https://bugs.freedesktop.org/show_bug.cgi?id=28774

--- Comment #5 from Rafał Miłecki <zajec5@gmail.com> 2010-06-27 00:21:11 PDT ---
Created an attachment (id=36533)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=36533)
[UMS r] regs dump

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[Bug 28774] RS780: No picture over HDMI

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https://bugs.freedesktop.org/show_bug.cgi?id=28774

--- Comment #6 from Rafał Miłecki <zajec5@gmail.com> 2010-06-27 00:23:13 PDT ---
Created an attachment (id=36534)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=36534)
[BOOT] regs dump

Regs dump after booting (no X, no fb driver, no KMS) with HDMI connected. Both:
PANEL and TV (!) were displaying console with TV telling it's 1080p.

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[Bug 28774] RS780: No picture over HDMI

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https://bugs.freedesktop.org/show_bug.cgi?id=28774

--- Comment #7 from Rafał Miłecki <zajec5@gmail.com> 2010-06-27 00:24:27 PDT ---
Created an attachment (id=36535)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=36535)
[BOOT + UMS r] Xorg.0.log

After booting with HDMI attached (and seeing picture on it) I started X using
radeon UMS. TV switched to 720p and was still working!

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[Bug 28774] RS780: No picture over HDMI

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https://bugs.freedesktop.org/show_bug.cgi?id=28774

--- Comment #8 from Rafał Miłecki <zajec5@gmail.com> 2010-06-27 00:25:46 PDT ---
Created an attachment (id=36536)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=36536)
[BOOT + UMS r] regs dump

Regs with X started using radeon UMS. TV in 720p, still working!

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[Bug 28774] RS780: No picture over HDMI

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https://bugs.freedesktop.org/show_bug.cgi?id=28774

--- Comment #9 from Rafał Miłecki <zajec5@gmail.com> 2010-06-27 00:33:30 PDT ---
Created an attachment (id=36537)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=36537)
diff -u dump.kms.log dump.boot.log

I expected same displays layout with 3 dumps:
dump.kms.log ─ [KMS] regs dump
dump.radeon.log ─ [UMS r] regs dump
dump.boot.log ─ [BOOT] regs dump

Last one (dump.boot.log) is the only working so we may want to compare for
example dump.kms.log with dump.boot.log.

Unfortunately there are many registers that differ. Any hint which group should
I try?

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[Bug 28774] RS780: No picture over HDMI

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https://bugs.freedesktop.org/show_bug.cgi?id=28774

--- Comment #10 from Rafał Miłecki <zajec5@gmail.com> 2010-06-27 04:59:14 PDT ---
Created an attachment (id=36544)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=36544)
Differences in registers dumps

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[Bug 28774] RS780: No picture over HDMI

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=28774

--- Comment #11 from Alex Deucher <agd5f@yahoo.com> 2010-06-28 22:38:29 PDT ---
On avivo chips, the display regs start at 0x6000 (crtcs/grph/cur/etc.) and the
output regs start at 0x7000 (dacs/dig/etc.).  They only relevant register in
your dump that's different is 0x75a0 (DIG_CNTL) and the only difference is that
dig mode (DVI vs HDMI) either of which should work fine.  I think the problem
lies in the north bridge pcie config regs as the HDMI port uses the PCIEPHY
transmitter which shares lanes with the northbrigde.  I'm trying to get some
better info on how it's supposed to work to help debug it.

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[Bug 28774] RS780: No picture over HDMI

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https://bugs.freedesktop.org/show_bug.cgi?id=28774

--- Comment #12 from Alex Deucher <agd5f@yahoo.com> 2010-06-29 15:36:33 PDT ---
Created an attachment (id=36615)
 View: https://bugs.freedesktop.org/attachment.cgi?id=36615
 Review: https://bugs.freedesktop.org/review?bug=28774&attachment=36615

nb_misc pcie regs are only accessible via io ports

Does the attached patch help?

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[Bug 28774] RS780: No picture over HDMI

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https://bugs.freedesktop.org/show_bug.cgi?id=28774

Rafał Miłecki <zajec5@gmail.com> changed:

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

--- Comment #13 from Rafał Miłecki <zajec5@gmail.com> 2010-07-04 06:16:53 PDT ---
(In reply to comment #12)
> Created an attachment (id=36615)
 View: https://bugs.freedesktop.org/attachment.cgi?id=36615
 Review: https://bugs.freedesktop.org/review?bug=28774&attachment=36615

> nb_misc pcie regs are only accessible via io ports
> 
> Does the attached patch help?

As I told you on IRC, my access to this netbook is limited. I didn't manage to
test your patch until yesterday. However after yesterday's testing I can say,
it works great! Thanks!

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