[Bug 15753] New: [Dualhead, randr12]

[Bug 15753] New: [Dualhead, randr12]

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15753

           Summary: [Dualhead, randr12]
           Product: xorg
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: xake-ca8b1Tj3MiseIZ0/mPfg9Q@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


My system have two monitors connected to my system.
My xorg.conf starts VGA-0 to the left of DVI-A-0.
Both starts at resolution 1280x1024 by default (not changed by me).

VGA-0 is capable of running the resolution 1600x1200, but here comes the
problem:
xake@lillen ~ $ xrandr --output VGA-0 --mode 1600x1200
xake@lillen ~ $ xrandr
Screen 0: minimum 320 x 200, current 2560 x 1200, maximum 3000 x 3000
VGA-0 connected 1600x1200+0+0 (normal left inverted right x axis y axis) 352mm
x 264mm
   1280x1024      85.0 +   84.8     75.0  
   1600x1200      75.0* 
   1152x864       75.0  
   1024x768      100.0     84.9     75.1     70.1     60.0     43.5  
   832x624        74.6  
   800x600        84.9     72.2     75.0     60.3     56.2  
   640x480        84.6     75.0     72.8     66.7     60.0  
   720x400        87.8     70.1  
DVI-A-0 connected 1280x1024+1280+0 (normal left inverted right x axis y axis)
306mm x 230mm
   1280x1024      60.1* 
   1024x768       75.1     70.1     60.0     43.5  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        75.0     72.8     66.7     60.0     59.9  
   720x400        87.8     70.1  
   512x384       120.0  
   400x300       120.6  
   320x240       120.1  
DVI-D-0 disconnected (normal left inverted right x axis y axis)

As you can see in this output the "current" for "Screen 0" is less then the
width of VGA-0 and DVI-A-0 making a part of the left screen also appere on the
right.

However if I do:

xake@lillen ~ $ xrandr
Screen 0: minimum 320 x 200, current 2560 x 1200, maximum 3000 x 3000
VGA-0 connected 1600x1200+0+0 (normal left inverted right x axis y axis) 352mm
x 264mm
   1280x1024      85.0 +   84.8     75.0  
   1600x1200      75.0* 
   1152x864       75.0  
   1024x768      100.0     84.9     75.1     70.1     60.0     43.5  
   832x624        74.6  
   800x600        84.9     72.2     75.0     60.3     56.2  
   640x480        84.6     75.0     72.8     66.7     60.0  
   720x400        87.8     70.1  
DVI-A-0 connected 1280x1024+1280+0 (normal left inverted right x axis y axis)
306mm x 230mm
   1280x1024      60.1* 
   1024x768       75.1     70.1     60.0     43.5  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        75.0     72.8     66.7     60.0     59.9  
   720x400        87.8     70.1  
   512x384       120.0  
   400x300       120.6  
   320x240       120.1  
DVI-D-0 disconnected (normal left inverted right x axis y axis)
xake@lillen ~ $ xrandr --output DVI-A-0 --off
xake@lillen ~ $ xrandr --output DVI-A-0 --auto
xake@lillen ~ $ xrandr --output DVI-A-0 --right-of VGA-0
xake@lillen ~ $ xrandr --output DVI-A-0 --mode 1280x1024
xake@lillen ~ $ xrandr
Screen 0: minimum 320 x 200, current 2880 x 1200, maximum 3000 x 3000
VGA-0 connected 1600x1200+0+0 (normal left inverted right x axis y axis) 352mm
x 264mm
   1280x1024      85.0 +   84.8     75.0  
   1600x1200      75.0* 
   1152x864       75.0  
   1024x768      100.0     84.9     75.1     70.1     60.0     43.5  
   832x624        74.6  
   800x600        84.9     72.2     75.0     60.3     56.2  
   640x480        84.6     75.0     72.8     66.7     60.0  
   720x400        87.8     70.1  
DVI-A-0 connected 1280x1024+1600+0 (normal left inverted right x axis y axis)
306mm x 230mm
   1280x1024      60.1* 
   1024x768       75.1     70.1     60.0     43.5  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        75.0     72.8     66.7     60.0     59.9  
   720x400        87.8     70.1  
   512x384       120.0  
   400x300       120.6  
   320x240       120.1  
DVI-D-0 disconnected (normal left inverted right x axis y axis)

Then as you can see everything works nice.

So it seems changing the resolution the output of VGA-0 (theleft screen) does
not setup a correct screen size, but with xrandr turn off DVI-A-0 and restore
its setup again both monitors seems to work nice.


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[Bug 15753] [Dualhead, randr12]

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15753





--- Comment #1 from Peter Hjalmarsson <xake-ca8b1Tj3MiseIZ0/mPfg9Q@public.gmane.org>  2008-04-29 03:47:08 PST ---
Created an attachment (id=16234)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16234)
Xorg.log

Forgot to add the details of my card:

01:00.0 VGA compatible controller [0300]: nVidia Corporation NV31 [GeForce FX
5600] [10de:0312] (rev a1) (prog-if 00 [VGA controller])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 32 (1250ns min, 250ns max)
        Interrupt: pin A routed to IRQ 18
        Region 0: Memory at f8000000 (32-bit, non-prefetchable) [size=16M]
        Region 1: Memory at e0000000 (32-bit, prefetchable) [size=256M]
        [virtual] Expansion ROM at f9000000 [disabled] [size=128K]
        Capabilities: [60] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [44] AGP version 3.0
                Status: RQ=32 Iso- ArqSz=0 Cal=3 SBA+ ITACoh- GART64- HTrans-
64bit- FW+ AGP3+ Rate=x4,x8
                Command: RQ=32 ArqSz=2 Cal=0 SBA+ AGP+ GART64- 64bit- FW+
Rate=x8


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[Bug 15753] [Dualhead, randr12] the width of the fb does not change itself

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15753


Peter Hjalmarsson <xake-ca8b1Tj3MiseIZ0/mPfg9Q@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[Dualhead, randr12]         |[Dualhead, randr12] the
                   |                            |width of the fb does not
                   |                            |change itself




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[Bug 15753] [Dualhead, randr12] the width of the fb does not change itself

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15753





--- Comment #2 from Maarten Maathuis <madman2003-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>  2008-04-29 04:06:49 PST ---
I'm wondering if this should be closed with NOTABUG or NOTOURBUG.

It's certainly not our bug, because the driver is doing precisely what xrandr
tells you. Secondly you may actually be getting what you ask for, but maybe not
what you want.

- You put the monitors into 1280x1024 and put one right of the other, at that
point the coordinate reference of the 2nd monitor is fixed. Then you increase
the other to 1600x1200, but never ask for a new position of the 2nd one.

- Wether this is desirable beheaviour is something different all together.


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[Bug 15753] [Dualhead, randr12] the width of the fb does not change itself

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=15753


Peter Hjalmarsson <xake-ca8b1Tj3MiseIZ0/mPfg9Q@public.gmane.org> changed:

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




--- Comment #3 from Peter Hjalmarsson <xake-ca8b1Tj3MiseIZ0/mPfg9Q@public.gmane.org>  2008-04-29 10:11:25 PST ---
He, I guess you are right. This seems like a NOTABUG since as you said xrandr
did what I told it to do. Then that xrandr as a screen manipulating tool can be
becuse of that somewhat confusing, that is another story for another day.


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