What are the horizontal and vertical total for this mode? The mode definition could just be wrong.
On Mon, Jun 27, 2011 at 6:10 AM, Martin Kielhorn <[email protected]> wrote: > Hi, > I have a problem in the sense that the 1280x1024-32@60Hz mode > isn't really 60Hz. The screen says the VSYNC rate is 47Hz. The > Samsung screen actually displays the test picture, but the ForthDD > display that I need to get running, doesn't work. > Hopefully someone on this list can shed some light on this. > > I uploaded two screenshots of a tool that came with the ForthDD display > http://imgur.com/a/a4f6p > The top one is with the Nvidia card and the bottom one with the open > graphics hardware. > The OGD1 tool prints this: > Requested clock = 216180000 > Actual clock = 214285680 (difference = 1894320) > That means the actual clock is 0.8% off, that doesn't explain the 47Hz VSYNC > rate that the screens report > Appart from the frequencies I see differences in the IFM_PIX_SYS_RATIO and > the tick at 'h+ sync'. > > > This is the output of oga1-vide-test: > > cyberpower:/opt/ogp/bin# ./oga1-vid-test --busid 0b:1.0 > oga1_i2c_get_edid: Reading EDID for top head. > manufacturer ID = "FDD" product=4868 sn=16777216 (2002 week 16) > EDID version 1.3 > Display is digital > Digital interface: DVI > Color Bit Depth is undefined > image size 32x24 > display gama 1.000000 > Power management: > Color encoding : RGB 4:4:4:4 & YCrCb 4:4:4 > Features: (default GTF supported) > Chromaticity Coordinates: > Red: 280:15c 0.625000:0.339844 > Green: 129:26c 0.290039:0.605469 > Blue: 09a:048 0.150391:0.070312 > White: 122:130 0.283203:0.296875 > Established Timings: > Standard Timing: > 0: 1280x1024 @ 60 Hz > 1: 1280x1024 @ 75 Hz > 2: 1280x1024 @ 85 Hz > 3: 1024x768 @ 85 Hz > Descriptor 0: > pixel clock = 108090 KHz > H active 1280 > H blanking 408 > V active 1024 > V blanking 42 > H sync offset 48 > H sync width 112 > V sync offset 1 > V sync width 3 > H image size 320mm > V image size 240mm > H border 0 > V border 0 > flags 1e > Descriptor 1: (FF) > Serial Number ;=?A > Descriptor 2: (FE) > ASCII string SXGA I/F > Descriptor 3: (FE) > ASCII string SXGA > 00 ff ff ff ff ff ff 00 18 84 04 13 00 00 00 01 > 0c 10 01 03 81 20 18 00 09 04 88 a0 57 4a 9b 26 WJ & > 12 48 4c 00 00 00 81 80 81 8f 81 99 61 59 01 01 HL aY > 01 01 01 01 01 01 39 2a 00 98 51 00 2a 40 30 70 9* Q *@0p > 13 00 40 f0 10 00 00 1e 00 00 00 ff 00 3b 3d 3f @ ;=? > 41 0b 0a 0a 0a 0a 0a 0a 0a 0a 00 00 00 fe 00 53 A S > 58 47 41 20 49 2f 46 0a 20 20 20 20 00 00 00 fe XGA I/F > 00 53 58 47 41 0a 20 20 20 20 20 20 20 20 00 62 SXGA b > oga1_i2c_get_edid: Reading EDID for bottom head. > oga1_i2c_get_edid: failed to read byte 0. > Looking for mode: ddc > Requested clock = 216180000 > Actual clock = 214285680 (difference = 1894320) > Dividers = sel:1 pre:35 post:1 > Setting Up DVI on top head. > oga1_dvi_init_single_link: pixel clock = 108090000 > Loading Video Program on top head (1280x1024@60). > start=0x8000000 pitch=1280 > hres=1280, hfp=48, hsync=112, hbp=248 [408] > vres=1024, vfp=1, vsync=3, vbp=38 [42] > pix-clock=108090000 digital hsync-low vsync-high > oga1_set_video_mode: digital 1 dvi_sl 1 vid_mode 5 > oga1_set_video_mode: pixel_info = d output_mode = 1 > 00987654 > 00123456 > > I checked that the nvidia tool reports exactly the same EDID information. > > -- > Martin Kielhorn > Randall Division of Cell & Molecular Biophysics > King's College London, New Hunt's House > Guy's Campus, London SE1 1UL, U.K. > tel: +44 (0) 207 848 6519, fax: +44 (0) 207 848 6435 > > _______________________________________________ > Open-graphics mailing list > [email protected] > http://lists.duskglow.com/mailman/listinfo/open-graphics > List service provided by Duskglow Consulting, LLC (www.duskglow.com) > -- Timothy Normand Miller http://www.cse.ohio-state.edu/~millerti Open Graphics Project _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
