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Old 01-05-07, 03:37 AM   #1
samuel4711
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Question How to uninstall NVIDIA Graphics Driver?

After the installation of openSuse 10.2 the display looked a little bit distorted after the start of the computer, but some minutes later it was gone. Therefore I downloaded and installed 'NVIDIA Accelerated Graphics Driver for Linux-x86' (version: 1.0-9631). Unfortunately, the refresh-rates I can choose now are about 60Hz, which were 75Hz and more before the installation. And I would like to have >=80Hz because I was told that this is the frontier for a flicker-free display.

I would like to know what things I have to consider (besides 'nvidia-installer --uninstall') for a safe uninstall and restoring the old settings.
I assume one thing is to rename xorg.conf.backup to xorg.conf. As xorg.conf.backup lacks of the FontPath statements, can I just copy them from the actual xorg.conf to the xorg.conf.backup and then just rename to xorg.conf.backup to xorg.conf?

Thanks in advance for your help.
Attached Files
File Type: log nvidia-installer.log (1.8 KB, 150 views)
File Type: zip xorg.conf_and_backup.zip (2.1 KB, 136 views)

Last edited by samuel4711; 01-05-07 at 05:17 AM.
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Old 01-05-07, 08:46 AM   #2
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Default Re: How to uninstall NVIDIA Graphics Driver

You could try to add your own modelines to the xorg.conf

Open the console and type gtf, and follow the instrucions there.
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Old 01-06-07, 04:08 AM   #3
samuel4711
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Default Re: How to uninstall NVIDIA Graphics Driver

Quote:
Originally Posted by TPG
You could try to add your own modelines to the xorg.conf

Open the console and type gtf, and follow the instrucions there.

Thank you for your answer.
I tried to do so, but obviously it failed / I failed to do it right (I also looked in the Linux-Book from Michael Kofler) because X did not start.
After restoring the old settings I tried again using the 'NVIDIA X Server Settings' Program. I attached the new xorg.conf, to which I added some statements that I did not find compared to the previous file (FontPath, keyboard-settings,...). Things I attached are less indent. Now, the Refresh rates I can choose are even lower than before. But I did tell the Settings-Program to use 1024x768 with a refresh rate of 85 Hz. I can find this in the new file, but can not choose when try to configure with 'configure desktop'.
I am going to search now in this forum and google for a way to find out the actual refresh-rate. Perhaps s.o. can help me in this matter too.
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File Type: zip xorg.conf.zip (1.1 KB, 116 views)
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Old 01-06-07, 07:03 AM   #4
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Default Re: How to uninstall NVIDIA Graphics Driver

I tried again inserting my own Modeline according to the instructions in my Linuxbook. (I think the mistake i made last time was: i did not add -HSync +Vsync, because it did not stand in the book that way). At least X starts now. But when back to kde, configure desktop i still can not choose another refresh rate.

Section "Modes"
Identifier "mymodes"
# 1024x768 @ 85.00 Hz (GTF) hsync: 68.60 kHz; pclk: 94.39 MHz
Modeline "1024x768_85.00" 94.39 1024 1088 1200 1376 768 769 772 807 -HSync +Vsync
EndSection

And somewhere in the internet i found: Option "VertRefresh" "85"
which I added too.

Section "Device"
Identifier "Videocard0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce2 MX/MX 400"
Option "VertRefresh" "85"
EndSection

But with the same result.

Here's an extract from the Konsole:

xdpyinfo | grep -B1 dot
dimensions: 1024x768 pixels (361x260 millimeters)
resolution: 72x75 dots per inch

xrandr -q
SZ: Pixels Physical Refresh
*0 1024 x 768 ( 361mm x 260mm ) *50 51
1 800 x 600 ( 282mm x 203mm ) 52 54
2 640 x 480 ( 225mm x 162mm ) 53 57
3 720 x 400 ( 253mm x 135mm ) 55
4 640 x 512 ( 225mm x 173mm ) 56
5 640 x 400 ( 225mm x 135mm ) 58
6 640 x 350 ( 225mm x 118mm ) 59
7 512 x 384 ( 180mm x 130mm ) 60
8 400 x 300 ( 141mm x 101mm ) 61
9 360 x 200 ( 126mm x 67mm ) 62
10 320 x 240 ( 112mm x 81mm ) 63
11 320 x 200 ( 112mm x 67mm ) 64
12 320 x 175 ( 112mm x 59mm ) 65
Current rotation - normal
Current reflection - none
Rotations possible - normal
Reflections possible - none

gtf 1024 768 85
# 1024x768 @ 85.00 Hz (GTF) hsync: 68.60 kHz; pclk: 94.39 MHz
Modeline "1024x768_85.00" 94.39 1024 1088 1200 1376 768 769 772 807 -HSync +Vsync

I added the xorg.conf again.

I am not sure if I can just uninstall the current nvidia-driver because I am not sure that the xorg.conf.backup is the original file before installation of the nvidia-driver.

I attached the Xorg.0.log.zip, too.
Attached Files
File Type: zip xorg.conf.zip (1.2 KB, 119 views)
File Type: zip Xorg.0.log.zip (11.5 KB, 109 views)

Last edited by samuel4711; 01-06-07 at 07:54 AM. Reason: added Xorg.0.log.zip to Attach Files
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Old 01-06-07, 09:53 AM   #5
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Default Re: How to uninstall NVIDIA Graphics Driver

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
Option "metamodes" "1024x768_85 +0+0; 1024x768 +0+0; 800x600 +0+0; 640x480 +0+0"
SubSection "Display"
Depth 24
Modes "1600x1200" "1280x1024_85.00" "1024x768" "800x600" "640x480"
EndSubSection
EndSection

Notice thow this should look like.
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Old 01-06-07, 02:37 PM   #6
samuel4711
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Default Re: How to uninstall NVIDIA Graphics Driver

Quote:
Originally Posted by TPG
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
Option "metamodes" "1024x768_85 +0+0; 1024x768 +0+0; 800x600 +0+0; 640x480 +0+0"
SubSection "Display"
Depth 24
Modes "1600x1200" "1280x1024_85.00" "1024x768" "800x600" "640x480"
EndSubSection
EndSection

Notice thow this should look like.
I have done what you posted me above (thanks again btw). But no difference.
I wonder why to set "1280x1024_85.00" and not "1024x768_85.00" because 1024x768 @ 85Hz is what I want (1280x1024 is no option I can choose, 1024x768 is tallest).
And I also wonder if "mymode" is recognized. In row 2134 of Xorg.0.log I can see: (II) NVIDIA(0): Setting mode "1024x768_85+0+0". Can I be sure that I have now a refresh rate of 85Hz?
xrandr -q
SZ: Pixels Physical Refresh
*0 1024 x 768 ( 361mm x 260mm ) *50 51
[...]

Or is it - as a read somewhere - a problem of KDE, which does not show the correct refresh rate?

And another thing: the characters look smaller. I changed Size to 18 in my personal settings. Before doing all that stuff here I configured in sax2 1280X1024. I changed this in my personal settings to 1024x768. The characters were taller and I could choose a refresh rate of 60Hz (and some others).
Attached Files
File Type: zip xorg.conf.zip (1.2 KB, 100 views)
File Type: zip Xorg.0.log.zip (11.2 KB, 98 views)

Last edited by samuel4711; 01-06-07 at 02:43 PM. Reason: correction
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Old 01-06-07, 03:16 PM   #7
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Default Re: How to uninstall NVIDIA Graphics Driver

Add your favorites modelines to the Monitor section, drop that "mymode" thing.
Then In Screen section for all Depths add your faworite modelines. Make sure they have same names as in Monitor section.


So as you can see i made a mistake in my last post.

This is your modeline:
Modeline "1024x768_85.00" 94.39 1024 1088 1200 1376 768 769 772 807 -HSync +Vsync

Screen section should look like this one:

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1600x1200" "1280x1024" "1024x768_85.00" "800x600" "640x480"
EndSubSection
EndSection
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Old 01-07-07, 06:12 AM   #8
samuel4711
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Default Re: How to uninstall NVIDIA Graphics Driver

Hi, it's me again.

That's what I have done:

Section "Monitor"
[...]
Modeline "1024x768_85.00" 94.39 1024 1088 1200 1376 768 769 772 807 -HSync +Vsync
EndSection

Section "Screen"
[...]
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1024x768_85.00"
EndSubSection
EndSection


And that's the result:

Xorg.0.log, line number 322:
(II) NVIDIA(0): Setting mode "1024x768_85.00"

xrandr -q
SZ: Pixels Physical Refresh
*0 1024 x 768 ( 361mm x 260mm ) *50 51 52 53 54 55
1 960 x 720 ( 338mm x 243mm ) 56
2 928 x 696 ( 327mm x 235mm ) 57
3 896 x 672 ( 316mm x 227mm ) 58
4 832 x 624 ( 293mm x 211mm ) 59
5 800 x 600 ( 282mm x 203mm ) 60 61 62 63 64 65 66 67 68 69 70
6 800 x 512 ( 282mm x 173mm ) 71
7 720 x 400 ( 253mm x 135mm ) 72
8 640 x 512 ( 225mm x 173mm ) 73 74 75
9 640 x 480 ( 225mm x 162mm ) 76 77 78 79 80 81 82 83
10 640 x 400 ( 225mm x 135mm ) 84
11 640 x 350 ( 225mm x 118mm ) 85
12 576 x 432 ( 203mm x 146mm ) 86
13 576 x 384 ( 203mm x 130mm ) 87
14 512 x 384 ( 180mm x 130mm ) 88 89 90 91
15 416 x 312 ( 146mm x 105mm ) 92
16 400 x 300 ( 141mm x 101mm ) 93 94 95 96 97
17 360 x 200 ( 126mm x 67mm ) 98
18 320 x 240 ( 112mm x 81mm ) 99 100 101 102
19 320 x 200 ( 112mm x 67mm ) 103
20 320 x 175 ( 112mm x 59mm ) 104
Current rotation - normal
Current reflection - none
Rotations possible - normal
Reflections possible - none


Unfortunately, it doesn't seem to be much of an advance. I did not find something else what I could do. Perhaps you know something?

I knew it would be difficult to switch to Linux. The Look&Feel is now really good, even for a windows-user. But many of these little problems are really unmotivating. These are the moments (besides alle the progs I have in Windows) where I think that windows is easier to handle. Especially in such an important thing that has direct effect to my eyes - and I love my eyes and I don't want bigger glasses than I have now.
Attached Files
File Type: zip xorg.conf.zip (1.2 KB, 110 views)
File Type: zip Xorg.0.log.zip (4.1 KB, 102 views)
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Old 01-07-07, 06:56 AM   #9
samuel4711
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Default Re: How to uninstall NVIDIA Graphics Driver

Ok, well ... it's a little bit embarrassing. But I found another thread from s.o. with the same problem: http://www.nvnews.net/vbulletin/show...t=refresh+rate

My refresh rate seems to be H: 68.6 KHz and V: 85.0 Hz, says my monitor.
It is a KDE problem, which does not show me the right refresh rates.

I want to thank you again for your help and I am sorry that I bothered you with my question, which I could have solved when doing the right search in this forum. Seems that I overlooked the thread above in former searches.
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Old 01-07-07, 10:54 AM   #10
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Default Re: How to uninstall NVIDIA Graphics Driver

xrandr -q lies

I alwaych check vsync refresh from my Monitor's osd.

You can try vsync 100 and more to get better comfort, if only your monitor could handle this.
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