[Bug 92178] New: nouveau framebuffer fails to initialize properly on GeForce 2 Go (NV11M)

[Bug 92178] New: nouveau framebuffer fails to initialize properly on GeForce 2 Go (NV11M)

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=92178

            Bug ID: 92178
           Summary: nouveau framebuffer fails to initialize properly on
                    GeForce 2 Go (NV11M)
           Product: xorg
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: serninpc-TWgYT7lc6Xzk1uMJSBkQmQ@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Created attachment 118513
  --> https://bugs.freedesktop.org/attachment.cgi?id=118513&action=edit
dmesg with nouveau loaded

When nouveaufb starts the screen does not change from what it was, cursor keeps
blinking though.

Attached a dmesg and vbios.rom retrieved with ssh.

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[Bug 92178] nouveau framebuffer fails to initialize properly on GeForce 2 Go (NV11M)

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=92178

--- Comment #1 from Sernin van de Krol <serninpc-TWgYT7lc6Xzk1uMJSBkQmQ@public.gmane.org> ---
Created attachment 118514
  --> https://bugs.freedesktop.org/attachment.cgi?id=118514&action=edit
vbios.rom with nouveau loaded

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[Bug 92178] nouveau framebuffer fails to initialize properly on GeForce 2 Go (NV11M)

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https://bugs.freedesktop.org/show_bug.cgi?id=92178

--- Comment #2 from Sernin van de Krol <serninpc-TWgYT7lc6Xzk1uMJSBkQmQ@public.gmane.org> ---
Created attachment 120457
  --> https://bugs.freedesktop.org/attachment.cgi?id=120457&action=edit
Xorg log of using xf86-video-nv

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[Bug 92178] nouveau framebuffer fails to initialize properly on GeForce 2 Go (NV11M)

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=92178

--- Comment #3 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
The interesting bits from the log:

[   128.852] (II) NV(0): I2C bus "DDC" initialized.
[   128.852] (II) NV(0): Probing for EDID on I2C bus A...
[   128.852] (II) NV(0): I2C device "DDC:ddc2" registered at address 0xA0.
[   128.855] (II) NV(0):   ... none found
[   128.855] (II) NV(0): Probing for EDID on I2C bus B...
[   129.092] (II) NV(0):   ... none found
[   129.092] (--) NV(0): CRTC 1 is currently programmed for DFP
[   129.092] (II) NV(0): Using DFP on CRTC 1
[   129.092] (--) NV(0): Panel size is 1400 x 1050
[   129.092] (II) NV(0): NOTE: This driver cannot reconfigure the
BIOS-programmed size.
[   129.092] (II) NV(0): These dimensions will be used as the panel size for
mode validation.
[   129.092] (II) NV(0): Panel is LVDS


Note that the xf86-video-nv recognizes device id 112 (and a boatlod of others)
as mobile, and for those it forces pNv->FlatPanel = 1, which in turn causes:

             if(pNv->FlatPanel) pNv->CRTCnumber = 1;

    if(pNv->FlatPanel && !pNv->Television) {
       pNv->fpWidth = pNv->PRAMDAC[0x0820/4] + 1;
       pNv->fpHeight = pNv->PRAMDAC[0x0800/4] + 1;
       pNv->fpVTotal = pNv->PRAMDAC[0x804/4] + 1;
       pNv->fpSyncs = pNv->PRAMDAC[0x0848/4] & 0x30000033;
       xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "Panel size is %i x %i\n",
                  pNv->fpWidth, pNv->fpHeight);
       xf86DrvMsg(pScrn->scrnIndex, X_INFO, "NOTE: This driver cannot "
                  "reconfigure the BIOS-programmed size.\n");
       xf86DrvMsg(pScrn->scrnIndex, X_INFO, "These dimensions will be used as "
                  "the panel size for mode validation.\n");
    }

    if(monitorA)
      xf86SetDDCproperties(pScrn, monitorA);

    if(!pNv->FlatPanel || (pScrn->depth != 24) || !pNv->twoHeads)
        pNv->FPDither = FALSE;

    pNv->LVDS = FALSE;
    if(pNv->FlatPanel && pNv->twoHeads) {
        pNv->PRAMDAC0[0x08B0/4] = 0x00010004;
        if(pNv->PRAMDAC0[0x08B4/4] & 1)
           pNv->LVDS = TRUE;
        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Panel is %s\n", 
                   pNv->LVDS ? "LVDS" : "TMDS");
    }


and later on

    if(pNv->FlatPanel == 1) {
       vertStart = vertTotal - 3;  
       vertEnd = vertTotal - 2;
       vertBlankStart = vertStart;
       horizStart = horizTotal - 5;
       horizEnd = horizTotal - 2;   
       horizBlankEnd = horizTotal + 4;
       if(pNv->Architecture == NV_ARCH_30)
           horizTotal += 2;
    }

We should figure out what all this maps to in nouveau and how to properly fake
it.

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[Bug 92178] nouveau framebuffer fails to initialize properly on GeForce 2 Go (NV11M)

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https://bugs.freedesktop.org/show_bug.cgi?id=92178

Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> changed:

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

--- Comment #4 from Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/219.

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