> John Martin wrote: > > > > None of which I know. When it prints the above message, it is merely > > reporting > > that the EDID has the preferred timing mode bit set (byte 0x18, bit 1). > > I should update print_edid.c to display this bit if the EDID version is 1.3 > > or > > higher. > > > > > Updated code attached. > > Preferred Timing Mode: yes
Ok, that is printed now. But the "VESA ENHANCED EXTENDED DISPLAY IDENTIFICATION DATA ? Implementation Guide" document at http://www.vesa.org/Public/EEDIDguideV1.pdf tells me that byte 0x18, bit 1 is supported in all EDID revisions, not only on 1.3. (3.4.5, page 11). And 3.7.4 on page 13 tells me: The first descriptor block must be used to indicate the display's preferred timing mode. (See 3.4.4 and 3.4.5) When the preferred timing bit is set (offset 18h, bit 1) the first block (offset 36h-47h) must not contain data types other than a detailed timing. NOTE: LCD or other fixed pixel types of displays should use the preferred timing to indicate a format and timing that corresponds to the display s native format. That is, the Iiyama AU4831D panel is returning buggy EDID data; they should have the 1600x1200 mode in the detailed timing section at offset 0x36. This message posted from opensolaris.org
