[Bug 43487] [HD6320] Corrupted displays (LVDS and HDMI) after connecting HDMI

[Bug 43487] [HD6320] Corrupted displays (LVDS and HDMI) after connecting HDMI

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=43487

--- Comment #2 from Rafał Miłecki <zajec5@gmail.com> 2011-12-03 03:33:17 UTC ---
** LVDS corruption **

After disconnecting HDMI corruption does not disappear.
Switching to console (ALT+CTRL+F1) does not fix corruption.
However switching back to X (ALT+CTRL+F7) fixes the corruption.

One more interesting thing: DFP1 seems to be disconnected all the time
according to xrandr:
DFP1 disconnected (normal left inverted right x axis y axis)

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[Bug 43487] New: [HD6320] Corrupted displays (LVDS and HDMI) after connecting HDMI

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=43487

             Bug #: 43487
           Summary: [HD6320] Corrupted displays (LVDS and HDMI) after
                    connecting HDMI
    Classification: Unclassified
           Product: DRI
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: zajec5@gmail.com


I've netbook Asus 1215B with AMD E-450 and HD6320.

When I connect my TV over HDMI I get 2 corrupted displays after a second or
two.

I'm using drm-next branch of git://people.freedesktop.org/~airlied/linux from
yesterday (04b3924db60f974d2b4af0b2e19a0ae7ca202dc7).

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[Bug 43487] [HD6320] Corrupted displays (LVDS and HDMI) after connecting HDMI

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=43487

--- Comment #1 from Rafał Miłecki <zajec5@gmail.com> 2011-12-03 03:23:42 PST ---
** LVDS corruption **

LVDS corruption consists of two problems:
1) Display is corrupted
2) Everything is moved (bottom and right parts of display are black)

Ad 1
After booting (without HDMI connected) register 0x6818 is set to 0x00000640.
When I connect HDMI, driver changes it to 0x00000580. I have no idea why does
it happen, but it's source of the corruption. Setting it back with:
avivotool regset 0x6818 0x00000640
removes corruption. I believe register is defined as:
#define EVERGREEN_GRPH_PITCH                            0x6818
With fglrx register 0x6818 is set to 0x640 all the time (with HDMI and without)

Ad 2
After booting (without HDMI connected) register 0x6810 is set to 0x00000000.
When I connect HDMI, driver changes it to 0x00142000. It's the source of moved
display. Setting it back with:
avivotool regset 0x6810 0x00000000
removes movement. I believe register is defined as:
#define EVERGREEN_GRPH_PRIMARY_SURFACE_ADDRESS          0x6810
With fglrx register 0x6810 is set to 0 all the time (with HDMI and without)

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[Bug 43487] [HD6320] Corrupted displays (LVDS and HDMI) after connecting HDMI

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=43487

--- Comment #3 from Rafał Miłecki <zajec5@gmail.com> 2011-12-03 03:47:35 PST ---
** HDMI corruption **

After connecting  HDMI (and waiting second or two) my TV starts displaying
something. That looks like green and white vertical stripes. However xrandr
displays HDMI (DFP1) as disconnected and it really seems that DFP1 is not
programmed at all.

When I compare regs between radeon and (fglrx or
radeon-with-DFP1-attached-at-boot-time) [always with HDMI attached], there are
a lot of differences. About 30 in low registers and over 100 differences in
registers 0x28... and 0x29...

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[Bug 43487] [HD6320] Corrupted displays (LVDS and HDMI) after connecting HDMI

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=43487

Rafał Miłecki <zajec5@gmail.com> changed:

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

--- Comment #4 from Rafał Miłecki <zajec5@gmail.com> 2011-12-03 04:09:12 PST ---
Just call me an idiot. I've been using fglrx Xorg driver with radeon kernel
module...

Plain radeon + radeon works OK!

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