I have one Samsung SyncMaster 712N LCD monitor serving four PC's. For the time being, let's just consider one of them, bearing in mind that on another one, running Win98SE, the monitor cheerfully displays at the maximum screen resolution (1280 by 1024) and 32 bits of color, but on this one, 1024 by 768 is the maximum that can be reached with the "adjust screen resolution" window in debian. The video card is nVidia GeForce Fx5200, which will support much higher screen resolution than this monitor can handle. Here's what appears to be the relevant portion of XFree86.0.log: ... snippage ... (--) NV(0): DDC detected a CRT: (II) NV(0): Manufacturer: SAM Model: 124 Serial#: 1296707895 (II) NV(0): Year: 2004 Week: 35 (II) NV(0): EDID Version: 1.3 (II) NV(0): Analog Display Input, Input Voltage Level: 0.700/0.700 V (II) NV(0): Sync: Separate Composite (II) NV(0): Max H-Image Size [cm]: horiz.: 34 vert.: 27 (II) NV(0): Gamma: 2.20 (II) NV(0): DPMS capabilities: Off; RGB/Color Display (II) NV(0): First detailed timing is preferred mode (II) NV(0): redX: 0.650 redY: 0.330 greenX: 0.330 greenY: 0.600 (II) NV(0): blueX: 0.150 blueY: 0.080 whiteX: 0.313 whiteY: 0.329 (II) NV(0): Supported VESA Video Modes: (II) NV(0): 720x400@70Hz (II) NV(0): 640x480@60Hz (II) NV(0): 640x480@67Hz (II) NV(0): 640x480@72Hz (II) NV(0): 640x480@75Hz (II) NV(0): 800x600@56Hz (II) NV(0): 800x600@60Hz (II) NV(0): 800x600@72Hz (II) NV(0): 800x600@75Hz (II) NV(0): 832x624@75Hz (II) NV(0): 1024x768@60Hz (II) NV(0): 1024x768@70Hz (II) NV(0): 1024x768@75Hz (II) NV(0): 1280x1024@75Hz (II) NV(0): 1152x870@75Hz (II) NV(0): Manufacturer's mask: 0 (II) NV(0): Supported Future Video Modes: (II) NV(0): #0: hsize: 1280 vsize 1024 refresh: 60 vid: 32897 (II) NV(0): #1: hsize: 1152 vsize 864 refresh: 75 vid: 20337 (II) NV(0): Supported additional Video Mode: (II) NV(0): clock: 108.0 MHz Image Size: 338 x 270 mm (II) NV(0): h_active: 1280 h_sync: 1328 h_sync_end 1440 h_blank_end 1688 h_border: 0 (II) NV(0): v_active: 1024 v_sync: 1025 v_sync_end 1028 v_blanking: 1066 v_border: 0 (II) NV(0): Ranges: V min: 56 V max: 75 Hz, H min: 30 H max: 81 kHz, PixClock max 140 MHz (II) NV(0): Monitor name: SyncMaster (II) NV(0): Serial No: HCJX836110 (--) NV(0): CRTC 0 appears to have a CRT attached (II) NV(0): Using CRT on CRTC 0 (--) NV(0): VideoRAM: 131072 kBytes (==) NV(0): Using gamma correction (1.0, 1.0, 1.0) (II) NV(0): SyncMaster: Using hsync range of 30.00-81.00 kHz (II) NV(0): SyncMaster: Using vrefresh range of 56.00-75.00 Hz (II) NV(0): Clock range: 12.00 to 350.00 MHz (II) NV(0): Not using default mode "640x350" (vrefresh out of range) (II) NV(0): Not using default mode "320x175" (vrefresh out of range) (II) NV(0): Not using default mode "640x400" (vrefresh out of range) (II) NV(0): Not using default mode "320x200" (vrefresh out of range) (II) NV(0): Not using default mode "720x400" (vrefresh out of range) (II) NV(0): Not using default mode "360x200" (vrefresh out of range) (II) NV(0): Not using default mode "640x480" (vrefresh out of range) (II) NV(0): Not using default mode "320x240" (vrefresh out of range) (II) NV(0): Not using default mode "800x600" (vrefresh out of range) (II) NV(0): Not using default mode "400x300" (vrefresh out of range) (II) NV(0): Not using default mode "1024x768" (vrefresh out of range) (II) NV(0): Not using default mode "512x384" (vrefresh out of range) (II) NV(0): Not using default mode "1024x768" (vrefresh out of range) (II) NV(0): Not using default mode "512x384" (vrefresh out of range) (II) NV(0): Not using default mode "1280x960" (hsync out of range) (II) NV(0): Not using default mode "640x480" (hsync out of range) (II) NV(0): Not using default mode "640x512" (hsync out of range) (WW) (1600x1200,SyncMaster) mode clock 162MHz exceeds DDC maximum 140MHz (WW) (1600x1200,SyncMaster) mode clock 175.5MHz exceeds DDC maximum 140MHz (II) NV(0): Not using default mode "1600x1200" (hsync out of range) (II) NV(0): Not using default mode "800x600" (hsync out of range) (II) NV(0): Not using default mode "1600x1200" (hsync out of range) (II) NV(0): Not using default mode "800x600" (hsync out of range) (II) NV(0): Not using default mode "1600x1200" (hsync out of range) (II) NV(0): Not using default mode "800x600" (hsync out of range) (II) NV(0): Not using default mode "1792x1344" (hsync out of range) (II) NV(0): Not using default mode "896x672" (hsync out of range) (II) NV(0): Not using default mode "1792x1344" (hsync out of range) (II) NV(0): Not using default mode "896x672" (hsync out of range) (II) NV(0): Not using default mode "1856x1392" (hsync out of range) (II) NV(0): Not using default mode "928x696" (hsync out of range) (II) NV(0): Not using default mode "1856x1392" (hsync out of range) (II) NV(0): Not using default mode "928x696" (hsync out of range) (II) NV(0): Not using default mode "1920x1440" (hsync out of range) (II) NV(0): Not using default mode "960x720" (hsync out of range) (II) NV(0): Not using default mode "1920x1440" (hsync out of range) (II) NV(0): Not using default mode "960x720" (hsync out of range) (II) NV(0): Not using default mode "1152x768" (vrefresh out of range) (II) NV(0): Not using default mode "576x384" (vrefresh out of range) (WW) (1400x1050,SyncMaster) mode clock 155.8MHz exceeds DDC maximum 140MHz (II) NV(0): Not using default mode "1920x1440" (hsync out of range) (II) NV(0): Not using default mode "960x720" (hsync out of range) (II) NV(0): Not using default mode "2048x1536" (hsync out of range) (II) NV(0): Not using default mode "1024x768" (hsync out of range) (II) NV(0): Not using default mode "2048x1536" (hsync out of range) (II) NV(0): Not using default mode "1024x768" (hsync out of range) (II) NV(0): Not using default mode "2048x1536" (bad mode clock/interlace/doublescan) (II) NV(0): Not using default mode "1024x768" (hsync out of range) (II) NV(0): Not using default mode "1600x1200" (width too large for virtual size) (II) NV(0): Not using default mode "1600x1200" (width too large for virtual size) (II) NV(0): Not using default mode "1400x1050" (width too large for virtual size) (II) NV(0): Not using default mode "1400x1050" (width too large for virtual size) (II) NV(0): Not using mode "1280x1024" (width too large for virtual size) (II) NV(0): Not using default mode "1280x960" (width too large for virtual size) (II) NV(0): Not using default mode "1152x864" (width too large for virtual size) (--) NV(0): Virtual size is 1024x768 (pitch 1024) (**) NV(0): *Default mode "1024x768": 78.8 MHz, 60.1 kHz, 75.1 Hz (II) NV(0): Modeline "1024x768" 78.80 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (**) NV(0): *Default mode "800x600": 49.5 MHz, 46.9 kHz, 75.0 Hz (II) NV(0): Modeline "800x600" 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (**) NV(0): *Default mode "640x480": 31.5 MHz, 37.5 kHz, 75.0 Hz (II) NV(0): Modeline "640x480" 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (**) NV(0): Default mode "1024x768": 75.0 MHz, 56.5 kHz, 70.1 Hz (II) NV(0): Modeline "1024x768" 75.00 1024 1048 1184 1328 768 771 777 806 -hsync -vsync (**) NV(0): Default mode "1024x768": 65.0 MHz, 48.4 kHz, 60.0 Hz (II) NV(0): Modeline "1024x768" 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (**) NV(0): Default mode "832x624": 57.3 MHz, 49.7 kHz, 74.6 Hz (II) NV(0): Modeline "832x624" 57.28 832 864 928 1152 624 625 628 667 -hsync -vsync (**) NV(0): Default mode "800x600": 50.0 MHz, 48.1 kHz, 72.2 Hz (II) NV(0): Modeline "800x600" 50.00 800 856 976 1040 600 637 643 666 +hsync +vsync (**) NV(0): Default mode "800x600": 87.8 MHz, 81.2 kHz, 65.0 Hz (D) (II) NV(0): Modeline "800x600" 87.75 800 832 928 1080 600 600 602 625 doublescan +hsync +vsync (**) NV(0): Default mode "800x600": 40.0 MHz, 37.9 kHz, 60.3 Hz (II) NV(0): Modeline "800x600" 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (**) NV(0): Default mode "800x600": 81.0 MHz, 75.0 kHz, 60.0 Hz (D) (II) NV(0): Modeline "800x600" 81.00 800 832 928 1080 600 600 602 625 doublescan +hsync +vsync (**) NV(0): Default mode "800x600": 36.0 MHz, 35.2 kHz, 56.2 Hz (II) NV(0): Modeline "800x600" 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (**) NV(0): Default mode "700x525": 77.9 MHz, 81.5 kHz, 74.8 Hz (D) (II) NV(0): Modeline "700x525" 77.90 700 732 892 956 525 526 532 545 doublescan +hsync +vsync (**) NV(0): Default mode "700x525": 61.0 MHz, 64.9 kHz, 60.0 Hz (D) (II) NV(0): Modeline "700x525" 61.00 700 744 820 940 525 526 532 541 doublescan +hsync +vsync (**) NV(0): Default mode "640x512": 67.5 MHz, 80.0 kHz, 75.0 Hz (D) (II) NV(0): Modeline "640x512" 67.50 640 648 720 844 512 512 514 533 doublescan +hsync +vsync (**) NV(0): Default mode "640x512": 54.0 MHz, 64.0 kHz, 60.0 Hz (D) (II) NV(0): Modeline "640x512" 54.00 640 664 720 844 512 512 514 533 doublescan +hsync +vsync (**) NV(0): Default mode "640x480": 31.5 MHz, 37.9 kHz, 72.8 Hz (II) NV(0): Modeline "640x480" 31.50 640 664 704 832 480 489 491 520 -hsync -vsync (**) NV(0): Default mode "640x480": 25.2 MHz, 31.5 kHz, 60.0 Hz (II) NV(0): Modeline "640x480" 25.20 640 656 752 800 480 490 492 525 -hsync -vsync (**) NV(0): Default mode "640x480": 54.0 MHz, 60.0 kHz, 60.0 Hz (D) (II) NV(0): Modeline "640x480" 54.00 640 688 744 900 480 480 482 500 doublescan +hsync +vsync (**) NV(0): Default mode "576x432": 54.0 MHz, 67.5 kHz, 75.0 Hz (D) (II) NV(0): Modeline "576x432" 54.00 576 608 672 800 432 432 434 450 doublescan +hsync +vsync (**) NV(0): Default mode "512x384": 39.4 MHz, 60.1 kHz, 75.1 Hz (D) (II) NV(0): Modeline "512x384" 39.40 512 520 568 656 384 384 386 400 doublescan +hsync +vsync (**) NV(0): Default mode "512x384": 37.5 MHz, 56.5 kHz, 70.1 Hz (D) (II) NV(0): Modeline "512x384" 37.50 512 524 592 664 384 385 388 403 doublescan -hsync -vsync (**) NV(0): Default mode "512x384": 32.5 MHz, 48.4 kHz, 60.0 Hz (D) (II) NV(0): Modeline "512x384" 32.50 512 524 592 672 384 385 388 403 doublescan -hsync -vsync (**) NV(0): Default mode "416x312": 28.6 MHz, 49.7 kHz, 74.7 Hz (D) (II) NV(0): Modeline "416x312" 28.64 416 432 464 576 312 312 314 333 doublescan -hsync -vsync (**) NV(0): Default mode "400x300": 24.8 MHz, 46.9 kHz, 75.1 Hz (D) (II) NV(0): Modeline "400x300" 24.75 400 408 448 528 300 300 302 312 doublescan +hsync +vsync (**) NV(0): Default mode "400x300": 25.0 MHz, 48.1 kHz, 72.2 Hz (D) (II) NV(0): Modeline "400x300" 25.00 400 428 488 520 300 318 321 333 doublescan +hsync +vsync (**) NV(0): Default mode "400x300": 20.0 MHz, 37.9 kHz, 60.3 Hz (D) (II) NV(0): Modeline "400x300" 20.00 400 420 484 528 300 300 302 314 doublescan +hsync +vsync (**) NV(0): Default mode "400x300": 18.0 MHz, 35.2 kHz, 56.3 Hz (D) (II) NV(0): Modeline "400x300" 18.00 400 412 448 512 300 300 301 312 doublescan +hsync +vsync (**) NV(0): Default mode "320x240": 15.8 MHz, 37.5 kHz, 75.0 Hz (D) (II) NV(0): Modeline "320x240" 15.75 320 328 360 420 240 240 242 250 doublescan -hsync -vsync (**) NV(0): Default mode "320x240": 15.8 MHz, 37.9 kHz, 72.8 Hz (D) (II) NV(0): Modeline "320x240" 15.75 320 332 352 416 240 244 245 260 doublescan -hsync -vsync (**) NV(0): Default mode "320x240": 12.6 MHz, 31.5 kHz, 60.1 Hz (D) (II) NV(0): Modeline "320x240" 12.60 320 328 376 400 240 245 246 262 doublescan -hsync -vsync (--) NV(0): Display dimensions: (340, 270) mm (--) NV(0): DPI set to (76, 72) ... snippage ... On another PC, also running debian, the monitor always starts in VGA mode but can be adjusted to 1280 by 1024 at 60Hz without a hassle. It just won't hold that setting upon rebooting. I'll deal with that one in another post. They're each connected through a Belkin KVM switch that has a higher bandwidth than demanded by these settings. Anyway, the monitor looks fine on the other two PC's at 1280 by 1024. The 4th PC is a SmoothWall hardware firewall that is happiest at VGA (text). Thanks, George _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86
