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Old 11-17-07, 11:46 PM   #1
homebase
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Default Can't get 1680x1050 on my FX5500--help?

I've got a 256M GeForce FX5500 on my Ubuntu Gutsy (7.10) system, using the proprietary nVidia drivers installed via the restricted drivers utility, version 1.0-9639. Today I purchased a Samsung SynchMaster 206BW LCD monitor, rated at 1680x1050 pixels. I've got it connected using the DVI connector.

However, I can't get the nVidia to drive the monitor at full capacity; the best I can get is 1440x900. I've found a web log which said that they had success driving the monitor at 1680x1050@60MHz by adding:
Code:
Option "ModeValidation" "NoMaxPClkCheck"
to my xorg.conf file, which I did; but it didn't make any difference. I also added
Code:
Option "UseEdidFreqs" "False"
which also didn't seem to help.

I've attached my nvidia-bug-report output; can anyone give me any advice on this? Apparently other people have gotten this to work so I'm still hopeful I can as well...?
Attached Files
File Type: log nvidia-bug-report.log (79.9 KB, 160 views)
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Old 11-18-07, 12:42 AM   #2
whig
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Posts: 854
Default Re: Can't get 1680x1050 on my FX5500--help?

use

startx -- -logverbose 6

to see why these result:
Code:
(WW) NVIDIA(0): No valid modes for "1680x1050@60"; removing.
(WW) NVIDIA(0): No valid modes for "1440x900@75"; removing.
(WW) NVIDIA(0): No valid modes for "1920x1200@60"; removing.
(WW) NVIDIA(0): No valid modes for "1280x768@75"; removing.
(WW) NVIDIA(0): No valid modes for "1280x800@75"; removing.
(WW) NVIDIA(0): No valid modes for "800x600@75"; removing.
(WW) NVIDIA(0): No valid modes for "800x600@72"; removing.
(WW) NVIDIA(0): No valid modes for "800x600@56"; removing.
(II) NVIDIA(0): Validated modes:
(II) NVIDIA(0):     "1440x900@60"
(II) NVIDIA(0):     "1600x1024@60"
(II) NVIDIA(0):     "1280x800@60"
(II) NVIDIA(0):     "1280x720@60"
(II) NVIDIA(0):     "1280x768@60"
(II) NVIDIA(0):     "800x600@60"
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Old 11-18-07, 05:14 AM   #3
energyman76b
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Location: Clausthal/Germany
Posts: 1,104
Default Re: Can't get 1680x1050 on my FX5500--help?

for starters, remove the modelines.

I just bought an tft 1680x1050 display and I don't have any modes set at all. Not surprisingly it works perfectly.

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@60" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync
modeline "1280x768@60" 80.14 1280 1344 1480 1680 768 769 772 795 -hsync +vsync
modeline "1280x720@60" 74.48 1280 1336 1472 1664 720 721 724 746 -hsync +vsync
modeline "1280x800@75" 107.21 1280 1360 1496 1712 800 801 804 835 -hsync +vsync
modeline "1280x768@75" 102.98 1280 1360 1496 1712 768 769 772 802 -hsync +vsync
modeline "1280x800@60" 83.46 1280 1344 1480 1680 800 801 804 828 -hsync +vsync
modeline "1440x900@75" 136.49 1440 1536 1688 1936 900 901 904 940 -hsync +vsync
modeline "1440x900@60" 106.47 1440 1520 1672 1904 900 901 904 932 -hsync +vsync
modeline "1600x1024@60" 136.36 1600 1704 1872 2144 1024 1025 1028 1060 -hsync +vsync
modeline "1680x1050@60" 147.14 1680 1784 1968 2256 1050 1051 1054 1087 -hsync +vsync
modeline "1920x1200@60" 193.16 1920 2048 2256 2592 1200 1201 1204 1242 -hsync +vsync

remove all that garbage.

and that rubbish too:
Modes "1680x1050@60" "1440x900@60" "1600x1024@60" "1440x900@75" "1280x800@60" "1920x1200@60" "1280x768@75" "1280x800@75" "1280x720@60" "1280x768@60" "800x600@60" "800x600@75" "800x600@72" "800x600@56"
EndSubSection

for comparism, my xorg.conf:
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection

Section "Files"
RgbPath "/usr/lib64/X11/rgb"
EndSection

Section "Module"
Load "dbe"
Load "extmod"
Load "type1"
Load "freetype"
Load "glx"
EndSection

Section "InputDevice"
# generated from data in "/etc/conf.d/gpm"
Identifier "Mouse0"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ExplorerPS/2"
Option "Buttons" "8"
Option "ZAxisMapping" "4 5 6 7"
Option "Emulate3Buttons" "true"
Option "Resolution" "800"
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "AutoRepeat" "500 30"
Option "XkbRules" "xorg"
Option "XkbModel" "pc102"
Option "XkbLayout" "de"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 30.0 - 110.0
VertRefresh 50.0 - 150.0
Option "DPMS"
EndSection

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
EndSubSection
EndSection

not only do i havq 1680x1050@60 work perfectly, I can switch to a huge number of resolutions wit krandrtray....
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Old 11-18-07, 08:52 AM   #4
homebase
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Default Re: Can't get 1680x1050 on my FX5500--help?

Aha! Removing all the modelines worked! Those were added to xorg.conf by Ubuntu when I selected my monitor from the "Screens and Graphics" utility. I removed those, turned back on the edid detection, and restarted and voila!

Thanks!
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Old 11-18-07, 08:57 AM   #5
energyman76b
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Location: Clausthal/Germany
Posts: 1,104
Default Re: Can't get 1680x1050 on my FX5500--help?

another case where brain dead automatics and 'userfriendlyness' hurt the user.

There are reasons why I don't like ubuntu....
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