On Wed, 2007-07-18 at 13:42 +0300, Al Boldi wrote: > Geert Uytterhoeven wrote: > > On Wed, 18 Jul 2007, Sasa Ostrouska wrote: > Is there any technical reason why vesafb shouldn't support non-BIOS modes? >
vesafb can only use modes included by the vendor in the card's BIOS. The mode table contains standard modes defined by VESA, and perhaps vendor-defined custom modes. However, the mode ID of custom modes varies from card to card, so you have to 'probe' the BIOS first for the list of modes and their associated ID. X + the 'vesa' driver does that probe, and so does the lrmi tool vbetest. So, one cannot just set any mode, unless that mode is already defined in the BIOS mode table. In VBE 3.0, you might be able to choose an arbitrary vertical refresh rate, but that's the best mode tuning you can do with the video BIOS. Tony - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
