[Bug 27524] New: linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[Bug 27524] New: linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

           Summary: linux-2.6.33.2 radeondrm_fb, rv350, garbled console on
                    PowerBook G4
           Product: Mesa
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/r300
        AssignedTo: dri-devel@lists.sourceforge.net
        ReportedBy: jeremyhu@freedesktop.org


Created an attachment (id=34776)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=34776)
dmesg

I have 2.6.33.2 with the KMS radeon driver.  radronfb is disabled, so I'm using
radeondrm_fb for console.

The console is completely garbled and unreadable during boot.  Eventually, we
startup X, and my machine is usable, but while in console mode, nothing can be
read or seen.  It looks like text is just sliced and diced.

Additionally, when X starts, the image displayed is identical to the image that
was in the framebuffer just before rebooting. (I see my X session with my
terminal open and 'sudo reboot' as the last command).  After a few seconds, I
see gdm.

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

--- Comment #1 from Jeremy Huddleston <jeremyhu@freedesktop.org> 2010-04-07 15:18:43 PDT ---
0000:00:10.0 VGA compatible controller: ATI Technologies Inc RV350 [Mobility
Radeon 9600 M10]
    Subsystem: ATI Technologies Inc RV350 [Mobility Radeon 9600 M10]
    Flags: bus master, 66MHz, medium devsel, latency 255, IRQ 48
    Memory at b8000000 (32-bit, prefetchable) [size=128M]
    I/O ports at 0400 [size=256]
    Memory at b0000000 (32-bit, non-prefetchable) [size=64K]
    Expansion ROM at b0020000 [disabled] [size=128K]
    Capabilities: [58] AGP version 2.0
    Capabilities: [50] Power Management version 2
    Kernel driver in use: radeon

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

Jeremy Huddleston <jeremyhu@freedesktop.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Platform|Other                       |PowerPC
         OS/Version|All                         |Linux (All)

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #34776|application/octet-stream    |text/plain
          mime type|                            |

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

--- Comment #2 from Michel Dänzer <michel@daenzer.net> 2010-04-07 15:30:29 PDT ---
Works for me on the same or at least very similar machine... Try disabling
OFfb, I think the handover from that to KMS doesn't quite work yet.

Also, for performance you probably want to pass radeon.agpmode=1 to avoid the
fallback to PCI mode - for some reason I haven't figured out yet, AGP 4x or 2x
don't work reliably yet with KMS.

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

--- Comment #3 from Michel Dänzer <michel@daenzer.net> 2010-04-07 15:32:21 PDT ---
(In reply to comment #3)
> Additionally, when X starts, the image displayed is identical to the image that
> was in the framebuffer just before rebooting. (I see my X session with my
> terminal open and 'sudo reboot' as the last command).  After a few seconds, I
> see gdm.

I think it's trying to preserve the console contents but failing because that
requires something which is only in Fedora yet. Should probably be fixed to
just clear to black in that case, but that would need to be tracked in a
separate report.

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

--- Comment #4 from Jeremy Huddleston <jeremyhu@freedesktop.org> 2010-04-07 16:11:49 PDT ---
I set this on my command line:

append="radeon.agpmode=1 video=radeon"

Now the text doesn't garble.  My display just seems "hypercolored" ... I can't
really describe it and will need to take a picture if you don't know what I
mean.  Once X starts, it becomes usable.

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

--- Comment #5 from Michel Dänzer <michel@daenzer.net> 2010-04-08 00:51:33 PDT ---
(In reply to comment #4)
> I set this on my command line:
> 
> append="radeon.agpmode=1 video=radeon"
> 
> Now the text doesn't garble.  My display just seems "hypercolored" ... I can't
> really describe it and will need to take a picture if you don't know what I
> mean.

I don't, so please do. :) Also please attach the dmesg with those options.

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

--- Comment #6 from Jeremy Huddleston <jeremyhu@freedesktop.org> 2010-04-08 13:42:33 PDT ---
Here's a link to a video I captured of the boot process using radeon.agpmode=1
video=radeon:

http://cloud.cs.berkeley.edu/~jeremy/PR-27524/STP81647.AVI

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

--- Comment #7 from Jeremy Huddleston <jeremyhu@freedesktop.org> 2010-04-08 13:44:22 PDT ---
Also, once in X, I can change TTY with the ctrl-alt-f# key sequence.  Doing
this leaves the display unaltered and hides the mouse pointer.  It looks as
though the framebuffer is not being updated.

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

--- Comment #8 from Jeremy Huddleston <jeremyhu@freedesktop.org> 2010-04-08 13:50:23 PDT ---
Created an attachment (id=34829)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=34829)
dmesg video=radeon radeon.agpmode=1

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

--- Comment #9 from Jeremy Huddleston <jeremyhu@freedesktop.org> 2010-04-08 13:54:07 PDT ---
I'm wondering if video=radeon is enough to punt OFfb.  I see a note at 0.9756
into boot that shows OFfb was still loaded.  It looks like I'd need to do some
Kconfig magic to prevent OFfb from being built since it's forced on by PPC.  Is
there something else I should try to force radeondrmfb?

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

--- Comment #10 from Jeremy Huddleston <jeremyhu@freedesktop.org> 2010-04-08 15:06:34 PDT ---
ah... video=offb:off is the correct incantation.  Doing so avoids the noted
corruption.

So it looks like this is just the offb to radeondrmfb handoff issue.

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

Michel Dänzer <michel@daenzer.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Product|Mesa                        |DRI
          Component|Drivers/DRI/r300            |DRM/Radeon

--- Comment #11 from Michel Dänzer <michel@daenzer.net> 2010-04-09 02:21:36 PDT ---
Right, so let's focus on the OFfb handover issue. One thing that might help
track down what's going on would be comparing register dumps from the good and
bad cases.

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

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https://bugs.freedesktop.org/show_bug.cgi?id=27524

--- Comment #12 from Jeremy Huddleston <jeremyhu@freedesktop.org> 2010-04-09 02:48:57 PDT ---
Ok, tell me what you want me to dump, when you want me to dump it, and how.

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

--- Comment #13 from Michel Dänzer <michel@daenzer.net> 2010-04-15 01:27:05 PDT ---
(In reply to comment #12)
> Ok, tell me what you want me to dump, when you want me to dump it, and how.

Build radeontool from git://anongit.freedesktop.org/~airlied/radeontool and run
something like

sudo ./radeontool regmatch '*' >dump.txt

once while the console is garbled and once while it's displaying correctly.

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

--- Comment #14 from Michel Dänzer <michel@daenzer.net> 2011-02-09 02:09:54 PST ---
This is working for me in recent kernels.

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[Bug 27524] linux-2.6.33.2 radeondrm_fb, rv350, garbled console on PowerBook G4

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=27524

Michel Dänzer <michel@daenzer.net> changed:

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

--- Comment #15 from Michel Dänzer <michel@daenzer.net> 2012-02-24 02:56:13 PST ---
Assuming this is fixed, reopen if not.

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