1280x960@85 on ATI 9600Pro won't work

[vlix]

I have an ATI 9600 Pro videocard and an Iiyama Vision Master Pro 400 CRT monitor. Both are recognized as such by Dapper Drake, and I have installed the latest drivers for the graphics card. However, the System Settings/Display menu will only let me select 59Hz as the screen refresh rate when I set my resolution to 1280x960. My monitor is capable of 85Hz. I've checked xorg.conf, and the correct display mode is present under both the "monitor" and "screen" headers:

 Section "Monitor"
  identifier "Generic Monitor"
  vendorname "Iiyama"
  modelname "Iiyama A701GT, VisionMasterPro 400"
  HorizSync 27.0-96.0
  VertRefresh 50.0-160.0
  modeline  "640x480@60" 25.2 640 656 752 800 480 490 492 525 -vsync -hsync
  modeline  "640x480@72" 31.5 640 664 704 832 480 489 491 520 -vsync -hsync
  modeline  "640x480@75" 31.5 640 656 720 840 480 481 484 500 -vsync -hsync
  modeline  "640x480@85" 36.0 640 696 752 832 480 481 484 509 -vsync -hsync
  modeline  "800x600@56" 36.0 800 824 896 1024 600 601 603 625 +hsync +vsync
  modeline  "800x600@72" 50.0 800 856 976 1040 600 637 643 666 +hsync +vsync
  modeline  "800x600@75" 49.5 800 816 896 1056 600 601 604 625 +hsync +vsync
  modeline  "800x600@85" 56.3 800 832 896 1048 600 601 604 631 +hsync +vsync
  modeline  "800x600@60" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync
  modeline  "832x624@75" 57.284 832 864 928 1152 624 625 628 667 -vsync -hsync
  modeline  "1024x768@85" 94.5 1024 1072 1168 1376 768 769 772 808 +hsync +vsync
  modeline  "1024x768@75" 78.8 1024 1040 1136 1312 768 769 772 800 +hsync +vsync
  modeline  "1024x768@70" 75.0 1024 1048 1184 1328 768 771 777 806 -vsync -hsync
  modeline  "1024x768@60" 65.0 1024 1048 1184 1344 768 771 777 806 -vsync -hsync
  modeline  "1024x768@43" 44.9 1024 1032 1208 1264 768 768 776 817 +hsync interlace +vsync
  modeline  "1152x864@75" 108.0 1152 1216 1344 1600 864 865 868 900 +hsync +vsync
  modeline  "1152x768@54" 64.995 1152 1178 1314 1472 768 771 777 806 +hsync +vsync
  modeline  "1280x854" 80.0 1280 1309 1460 1636 854 857 864 896 +hsync +vsync
  modeline  "1280x1024@75" 135.0 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync
  modeline  "1280x960@60" 102.1 1280 1360 1496 1712 960 961 964 994 -hsync +vsync
  modeline  "1280x960@85" 148.5 1280 1344 1504 1728 960 961 964 1011 +hsync +vsync
  modeline  "1280x1024@85" 157.5 1280 1344 1504 1728 1024 1025 1028 1072 +hsync +vsync
  modeline  "1280x1024@60" 108.0 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
  modeline  "1280x960@75" 129.86 1280 1368 1504 1728 960 961 964 1002 -hsync +vsync
  modeline  "1400x1050@60" 122.61 1400 1488 1640 1880 1050 1051 1054 1087 -hsync +vsync
  modeline  "1400x1050@75" 155.85 1400 1496 1648 1896 1050 1051 1054 1096 -hsync +vsync
  modeline  "1600x1200@65" 175.5 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
  modeline  "1600x1200@60" 162.0 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
  modeline  "1600x1200@75" 202.5 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
  modeline  "1600x1200@70" 189.0 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
  modeline  "1792x1344@60" 204.8 1792 1920 2120 2448 1344 1345 1348 1394 -hsync +vsync
  modeline  "1856x1392@60" 218.3 1856 1952 2176 2528 1392 1393 1396 1439 -hsync +vsync
  modeline  "1920x1440@60" 234.0 1920 2048 2256 2600 1440 1441 1444 1500 -hsync +vsync
  modeline  "2048x1536@60" 266.95 2048 2200 2424 2800 1536 1537 1540 1589 -hsync +vsync
  gamma 1.0
EndSection

Section "Screen"
  Identifier "Default Screen"
  Device "ATI Technologies, Inc. RV350 AP [Radeon 9600]"
  Monitor "Generic Monitor"
  DefaultDepth 24
  SubSection "Display"
    depth 24
    modes "1024x768@43" "1152x864@75" "1024x768@60" "1152x768@54" "1024x768@70" "1280x854" "1024x768@75" "1280x1024@75" "1024x768@85" "1280x960@60" "832x624@75" "1280x960@85" "800x600@60" "1280x1024@85" "800x600@85" "1280x1024@60" "800x600@75" "1280x960@75" "800x600@72" "1400x1050@60" "800x600@56" "1400x1050@75" "640x480@85" "1600x1200@65" "640x480@75" "1600x1200@60" "640x480@72" "1600x1200@75" "640x480@60" "1600x1200@70" "1792x1344@60" "1856x1392@60" "1920x1440@60" "2048x1536@60"
  EndSubSection
EndSection

Can anyone explain to this Linux newbie what's going wrong? Cheers in advance!

[caserio]

Re: 1280x960@85 on ATI 9600Pro won't work

Hi,
Try this:

Comment (# before) these lines:
modeline  "1280x960@60" 102.1 1280 1360 1496 1712 960 961 964 994 -hsync +vsync
modeline  "1280x960@75" (...)  in Section "Monitor"


Then delete (or option out) modes "1280x960@60" and "1280x960@75" in Section 'Screen"

It should work.

Here is my customized xorg.conf:

Section "Monitor"
  identifier "Q995"
  vendorname "Plug 'n' Play"
  modelname "Plug 'n' Play"
  #modeline  "800x600@75" 49.5 800 816 896 1056 600 601 604 625 +hsync +vsync
  #modeline  "800x600@85" 56.3 800 832 896 1048 600 601 604 631 +hsync +vsync
  modeline  "1024x768@85" 94.5 1024 1072 1168 1376 768 769 772 808 +hsync +vsync
  #modeline  "1024x768@75" 78.8 1024 1040 1136 1312 768 769 772 800 +hsync +vsync
  #modeline  "1600x1200@75" 202.5 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
  #modeline  "1600x1200@70" 189.0 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
  gamma 1.1
EndSection

Section "Screen"
  Identifier "Default Screen"
  Device "NVIDIA Corporation NV35 [GeForce FX 5900XT]"
  Monitor "Q995"
  DefaultDepth 24
  SubSection "Display"
    depth 24
    #virtual 2048 1536
    modes "1024x768@85" ## "1024x768@75" "800x600@85" "800x600@75" "1600x1200@75" "1600x1200@70"
  EndSubSection
EndSection

# => resolutions I may want to use
"1024x768@85" => actual screen res
The other default resolutions are deleted

[vlix]

Re: 1280x960@85 on ATI 9600Pro won't work

That did the trick, thanks!!

Any idea, though, why the refresh rate selection wouldn't work only on this resolution, while it works fine for other resolutions?