Mailinglist Archive: opensuse-bugs (8031 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=227111


sndirsch@xxxxxxxxxx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |NEEDINFO
      Info Provider|                            |benjamin.j.mccann@xxxxxxxxx




------- Comment #33 from sndirsch@xxxxxxxxxx  2006-12-13 21:11 MST -------
> This is totally strange. This looks like a driver/Xserver bug.
Not really.

(II) NV(0): clock: 108.0 MHz   Image Size:  4 x 3 mm
                                            ^^^^^^^^^

This is expected as value in cm! The monitor is lying - as usual. :-(

xserver/hw/xfree86/common/xf86Helper.c:xf86SetDpi()
[...]
    if (DDC && (DDC->features.hsize > 0 && DDC->features.vsize > 0) ) {
      /* DDC gives display size in mm for individual modes,
       * but cm for monitor 
       */
==>      ddcWidthmm = DDC->features.hsize * 10; /* 10mm in 1cm */
==>      ddcHeightmm = DDC->features.vsize * 10; /* 10mm in 1cm */
    } else {
      ddcWidthmm = ddcHeightmm = 0;
    }
[...]
    } else if ( ddcWidthmm && ddcHeightmm ) {
        from = X_PROBED;
        xf86DrvMsg(pScrn->scrnIndex, from, "Display dimensions: (%d, %d) mm\n",
                   ddcWidthmm, ddcHeightmm );
==>        pScrn->widthmm = ddcWidthmm;
==>        pScrn->heightmm = ddcHeightmm;
        if (pScrn->widthmm > 0) {
           pScrn->xDpi =
                (int)((double)pScrn->virtualX * MMPERINCH / pScrn->widthmm);
        }
        if (pScrn->heightmm > 0) {
           pScrn->yDpi =
                (int)((double)pScrn->virtualY * MMPERINCH / pScrn->heightmm);
        }
        if (pScrn->xDpi > 0 && pScrn->yDpi <= 0)
            pScrn->yDpi = pScrn->xDpi;
        if (pScrn->yDpi > 0 && pScrn->xDpi <= 0)
            pScrn->xDpi = pScrn->yDpi;
    }
[...]    
    xf86DrvMsg(pScrn->scrnIndex, from, "DPI set to (%d, %d)\n",
               pScrn->xDpi, pScrn->yDpi);

Unfortunately there is no option in nv driver to disable DDC probing. Could you
move /usr/lib/xorg/modules/libddc.so out of the way to check, what's the result
without any DDC probing? Thanks.


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