Editing xorg.conf

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Editing xorg.conf

Postby melchizedek on Wed Mar 26, 2008 10:53 pm

Evening chaps,

It's my first day with Linux MINT, though I've been a long time Linux user. Anyway, things have installed rather well. The only thing I am having problems with is with my refresh rate. My screen settings are registering as 1280x1024 at 60Hz....when they should be registering at 1280x1024 at 75Hz. So the resolution is right. But the refresh rate is wrong.

Anyway, I took a peek at my xorg.conf file and it's set up as follows......

Section "Monitor"
Identifier "Generic Monitor"
Vendorname "Generic LCD Display"
Modelname "LCD Panel 1280x1024"
Horizsync 31.5-64.0
Vertrefresh 56.0 - 65.0
modeline "640x480@60" 25.2 640 656 752 800 480 490 492 525 -vsync -hsync
modeline "800x600@56" 36.0 800 824 896 1024 600 601 603 625 +hsync +vsync
modeline "800x600@60" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync
modeline "1024x768@60" 65.0 1024 1048 1184 1344 768 771 777 806 -vsync -hsync
modeline "1280x960@60" 102.1 1280 1360 1496 1712 960 961 964 994 -hsync +vsync
modeline "1280x1024@60" 108.0 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
Gamma 1.0

The horizontals and verticals however need to be.....

Horizsync 24kHz - 80kHz
Vertrefresh 50Hz - 75Hz

Anyway, I gave them a bit of a tweak by su-ing, opening up xorg.conf, changing the values to those immediately above and then saving. The result was, the refresh rate displayed correctly, and all seemed well. But on reboot it drops my adjustments and goes back to the old refresh rate. On looking at my xorg.conf file again, the values have been changed back to what they were originally.

My question is, why are the values not sticking on reboot......and what would be the best way to correct this problem?

Much obliged....mel

P.S. I have the non-free nvidia drivers installed.
ASUS M2N68 PLUS | AMD Phenom 2.3 GHz x4 64 processor | 3D Fuzion 7600GS nVidia video | Corsair 2GB DDR2 PC-5300 dual channel | BENQ DVD+RW | 500 GB SATA HD (7200) | 250 GB SATA-300 Seagate Barracuda (7200) | Soundblaster Live | Mint 7.0/XP dual boot.
melchizedek
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Re: Editing xorg.conf

Postby Husse on Thu Mar 27, 2008 7:12 am

The values should not have change if you edited xorg.conf - if you used nvidia settings it's another story
viewtopic.php?f=42&t=3908
For refresh rate
viewtopic.php?f=59&t=5987
If you have a LCD monitor it should be at 60 Hz this is the default for LCD even if most can be run at 75 as well
Image
Don't fix it if it ain't broken, don't break it if you can't fix it
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Re: Editing xorg.conf

Postby melchizedek on Thu Mar 27, 2008 3:10 pm

Husse wrote:The values should not have change if you edited xorg.conf - if you used nvidia settings it's another story
viewtopic.php?f=42&t=3908
For refresh rate
viewtopic.php?f=59&t=5987
If you have a LCD monitor it should be at 60 Hz this is the default for LCD even if most can be run at 75 as well


Odd that 60 Hz is the default when they're capable of running so much higher. Windows used to run my monitor at 75 Hz, as did MEPIS. Oh well, thanks a lot for the links. I'll give them the once over tonight once I'm back home
ASUS M2N68 PLUS | AMD Phenom 2.3 GHz x4 64 processor | 3D Fuzion 7600GS nVidia video | Corsair 2GB DDR2 PC-5300 dual channel | BENQ DVD+RW | 500 GB SATA HD (7200) | 250 GB SATA-300 Seagate Barracuda (7200) | Soundblaster Live | Mint 7.0/XP dual boot.
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Re: Editing xorg.conf

Postby Husse on Thu Mar 27, 2008 5:36 pm

75 is an alternative - it's different from CRT, 60 Hz there is unbearable....
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Don't fix it if it ain't broken, don't break it if you can't fix it
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