Nouveau - May 2008 - [Bug 16148] New: primary display is borked with RandR12 enabled

http://bugs.freedesktop.org/show_bug.cgi?id=16148

           Summary: primary display is borked with RandR12 enabled
           Product: xorg
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: khadgaray at gmail.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=16807)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16807)
Xorg log

Primary (laptop's) display is borked, when RandR12 option is enabled.
Additionally, when using DVI conector the secondary display also starts acting
weird ( rainbow coloured checkboxes).

Version-Release number of selected component (if applicable):
kernel-2.6.25-14.fc9.i686
xorg-x11-drv-nouveau-0.0.10-2.20080408git0991281.fc9.i386

How reproducible:
always

Steps to Reproduce:
1. Enable RandR12 option
2. Enable dual-head using gnome-display-properties
3. Display goes crazy

Actual results:
Crazy psychedelic coloured display

Expected results:
Sane boring functional display

Additional info:
xorg log attached


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--- Comment #1 from Ritesh Khadgaray <khadgaray at gmail.com>  2008-05-29
05:23:14 PST ---
i have reported this bug to FC9.
https://bugzilla.redhat.com/show_bug.cgi?id=446626

This issue is reproducible when using the latest driver from git repo.


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--- Comment #2 from Ritesh Khadgaray <khadgaray at gmail.com>  2008-05-29
05:39:56 PST ---
Created an attachment (id=16808)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16808)
screen

When dual head is enabled with randr12 option, primary display is borked, and
secondary display is borked if dvi connector is used.


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--- Comment #3 from Ritesh Khadgaray <khadgaray at gmail.com>  2008-05-29
05:40:59 PST ---
Created an attachment (id=16809)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16809)
text console

The text console appears kindda blurry, as if viewing a text screen on a telly.


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--- Comment #4 from Stuart Bennett <sb476 at cam.ac.uk>  2008-08-17
10:29:02 PST ---
Hi, still interested in fixing this? If so:
* can you check the problem is still present on the latest version in git?
* am I correct to understand that when RandR12 is enabled, the laptop display
is incorrect, even without having the external DVI screen plugged in? Also, by
running with `Option "Randr12" "off"' in xorg.conf and
starting from a fresh
boot, the problem is not present?
* assuming the problem can be reproduced using only the laptop screen, is the
display still broken on returning to VT (either by Ctrl+Alt+F(n) or by closing
X)?


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--- Comment #5 from Ritesh Khadgaray <khadgaray at gmail.com>  2008-08-18
02:24:43 PST ---
> * can you check the problem is still present on the latest version in git?
Will do. the h/w should be available with me by coming monday
> * am I correct to understand that when RandR12 is enabled, the laptop
display
> is incorrect, even without having the external DVI screen plugged in? Also,
by
Yes
> running with `Option "Randr12" "off"' in xorg.conf
and starting from a fresh
> boot, the problem is not present?
Yes
> assuming the problem can be reproduced using only the laptop screen, is the
> display still broken on returning to VT (either by Ctrl+Alt+F(n) or by
closing
> X)?
Yes. If i restart X after disabling RandR12, i end with with a "telly"
like
screen ( horizontal rolling strips )

-- ritz


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--- Comment #6 from Stuart Bennett <sb476 at cam.ac.uk>  2008-08-18
07:26:24 PST ---
Assuming it doesn't work with updated software, can you also try:

1) starting from a non-corrupted state, start nouveau with
nv_bios.c:call_lvds_script patched out:

--- a/src/nv_bios.c
+++ b/src/nv_bios.c
@@ -2965,6 +2965,7 @@ void call_lvds_script(ScrnInfoPtr pScrn, struct dcb_entry
*dcbent, int head, enu
        uint32_t sel_clk_binding;
        static int last_invoc = 0;

+       return;
        if (last_invoc == (script << 1 | head) || !lvds_ver)
                return;

and check whether the picture in X is ok, and whether the picture on returning
to console is ok.

2) Make register dumps while in X, and attach them here -- one with randr12
disabled (and no corruption present), and one with randr12 enabled and the
corruption present -- as follows:

git clone git://people.freedesktop.org/~stuart/radeontool
make
./radeontool regs > logfile


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--- Comment #7 from Ritesh Khadgaray <khadgaray at gmail.com>  2008-09-02
06:09:37 PST ---
> 1) starting from a non-corrupted state, start nouveau with
> nv_bios.c:call_lvds_script patched out:
> --- a/src/nv_bios.c
> +++ b/src/nv_bios.c
> ...
> and check whether the picture in X is ok, and whether the picture on
returning
> to console is ok.
Nope. All i see is blank black screen. Switching to console and back to X, i
end up with a image of console ( translucent) on X. 

The console works fine.
> 2) Make register dumps while in X, and attach them here -- one with randr12
attached.

-- ritz


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--- Comment #8 from Ritesh Khadgaray <khadgaray at gmail.com>  2008-09-02
06:11:18 PST ---
Created an attachment (id=18639)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=18639)
logs


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--- Comment #9 from Stuart Bennett <sb476 at cam.ac.uk>  2008-09-14
10:25:21 PST ---
(In reply to comment #7)
> > 1) starting from a non-corrupted state, start nouveau with
> > nv_bios.c:call_lvds_script patched out:
> > --- a/src/nv_bios.c
> > +++ b/src/nv_bios.c
> > ...
> > and check whether the picture in X is ok, and whether the picture on
returning
> > to console is ok.
> 
> Nope. All i see is blank black screen. Switching to console and back to X,
i
> end up with a image of console ( translucent) on X. 
Hmm, a blank screen is surprising :-) As regards this translucent console, I
don't understand -- how is it different to the normal console display? what
indication is there that you are in X and not still at the console?
> The console works fine.
I assume by this you mean that the console is fine after leaving X; correct me
if I misunderstood.
> > 2) Make register dumps while in X, and attach them here -- one with
randr12
> attached.
There seems to be a problem here -- all four of the nouveau dumps appear to be
made from the console, rather than from within X. If you were doing them blind,
is it possible that X had crashed? If you were doing them from the console
while X was running in order to see, could you instead leave the computer *in
X* and run the dump commands from another computer over ssh?


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--- Comment #10 from Ritesh Khadgaray <khadgaray at gmail.com>  2009-02-05
10:49:17 PST ---
Please close this bug, as I do not have access to the hardware in question. 

-- ritz


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Marcin Slusarz <marcin.slusarz at gmail.com> changed:

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

--- Comment #11 from Marcin Slusarz <marcin.slusarz at gmail.com>
2010-07-23 16:42:32 PDT ---
(In reply to comment #10)
> Please close this bug, as I do not have access to the hardware in question.
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