On Thu, 23 Oct 2003, Leonardo Canducci wrote: > I just bought an al718 acer 17" TFT display and I'm very pleased with > it. it works just right at its native resolution (1280x1024) and even at > 1024x768, but I cannot switch to 800x600. > this is the relevant section of XF86Config-4: > ... > Section "Monitor" > Identifier "AcerAL718" > HorizSync 52-95 # from UK acer site > VertRefresh 50-75 # same as above > Option "DPMS" # what is this? > ... > SubSection "Display" > Depth 16 > Modes "1280x1024" "1024x768" "800x600" > EndSubSection > ... > > from XFree logs I see first: > ... > (II) NVIDIA(0): Connected display device(s): CRT-0 > (--) NVIDIA(0): Detected TV Encoder: Chrontel 7005 > (--) NVIDIA(0): Display device CRT-0: maximum pixel clock at 8 bpp: 350 > MHz > (--) NVIDIA(0): Display device CRT-0: maximum pixel clock at 16 bpp: 350 > MHz > (--) NVIDIA(0): Display device CRT-0: maximum pixel clock at 32 bpp: 300 > MHz > (II) Loading sub module "ddc" > (II) LoadModule: "ddc" > (II) Reloading /usr/X11R6/lib/modules/libddc.a > (WW) NVIDIA(0): The user specified HorizSync "52.000-95.000" has been > adjusted > (WW) NVIDIA(0): to "52.000-83.000" (the intersection with > EDID-specified > (WW) NVIDIA(0): HorizSync "30.000-83.000") > (II) NVIDIA(0): AcerAL718: Using hsync range of 52.00-83.00 kHz > (II) NVIDIA(0): AcerAL718: Using vrefresh range of 50.00-75.00 Hz > (II) NVIDIA(0): Clock range: 12.00 to 350.00 MHz > ... > > so hsync and v sync are changed. why? and more on: Because your monitor says it can't do above 83kHz. According to the monitor EDID, your hsyc range is 30.000-83.000. > ... > (WW) NVIDIA(0): Not using mode "800x600" (height 1200 is larger than > (WW) NVIDIA(0): EDID-specified maximum 1024) > (**) NVIDIA(0): Validated modes for display device CRT-0: > (**) NVIDIA(0): Default mode "1280x1024": 135.0 MHz, 80.0 kHz, 75.0 > Hz > (**) NVIDIA(0): Default mode "1024x768": 78.8 MHz, 60.1 kHz, 75.1 > Hz > ... > > what's that EDID thing? why is my display called CRT? how could I fix > things to use both 1280, 1024 and 800 resolutions? The EDID is the block of information the monitor gave the graphics card about its capabilities. You should specify 30.000-83.000 for your HorizSync range. Mark. _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86
