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Re: Solved with a modeline: Re: NEC2080UX+ - "Supported Future Video Modes"

Zenaan Harkness wrote:
On Wed, 2004-06-09 at 17:09, William Ballard wrote:

From this snippet of XFree86.0.log, can anyone construct a modeline
which will come up at 1280x1024@60? The monitor is NEC LCD1850E with a Radeon 9800XT.

(II) fglrx(0): Supported additional Video Mode:
(II) fglrx(0): clock: 135.0 MHz   Image Size:  359 x 287 mm
(II) fglrx(0): h_active: 1280 h_sync: 1296 h_sync_end 1440 h_blank_end 1688 h_border: 0 (II) fglrx(0): v_active: 1024 v_sync: 1025 v_sync_end 1028 v_blanking: 1066 v_border: 0 (II) fglrx(0): Ranges: V min: 55 V max: 85 Hz, H min: 31 H max: 82 kHz, PixClock max 140 MHz

Well, if  the same technique works as did for me:

Modeline "1280x1024" 135 1280 1296 1440 1688 1024 1025 1028 1066

Which actually looks the same as a line further down in the log:

(II) fglrx(0): Monitor name: NEC LCD1850E
(II) fglrx(0): Serial No: 204011324
(II) fglrx(0):
(II) fglrx(0): DesktopSetup 0x0000
(**) fglrx(0):  PseudoColor visuals disabled
(**) fglrx(0): Overlay disabled
(**) fglrx(0): Overlay disabled
(II) fglrx(0): PLL parameters: rf=2700 rd=12 min=20000 max=40000; xclk=36500
(==) fglrx(0): Using gamma correction (1.0, 1.0, 1.0)
(**) fglrx(0): Center Mode is disabled
(==) fglrx(0): TMDS coherent mode is enabled
(II) fglrx(0): Total 5 valid mode(s) found.
(--) fglrx(0): Virtual size is 1280x1024 (pitch 1280)
(**) fglrx(0): *Default mode "1280x1024": 135.0 MHz (scaled from 0.0 MHz), 80.0 kHz, 75.0 Hz

(II) fglrx(0): Modeline "1280x1024" 135.00 1280 1296 1440 1688 1024 1025 1028 1066


If it doesn't work, we'll have to find someone more knowledgeable
than us. Let us know how you go.

didn't catch the beginning but if you are sure that monitor supports it you can include the following in Section "Device":

        Option          "UseEdidFreqs" "false"
        Option          "IgnoreEdid" "true"

I had to do the same for Sony monitor that was reporting wrong values (Edid said it couldn't do 1280x1024) but given the HorizSync and VertRefresh it should have supported it and indeed it worked fine (once edid was disabled). I did set the HorizSync and VertRefresh according to monitor docs so I wasn't 'overclocking' it, I ony wanted resolution that wasn't in edid (slightly higher)

  guess it can damage your monitor so you'd better be carefull...


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