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#1 2011-05-11 09:17:41

innn
Member
Registered: 2010-10-12
Posts: 96

how do I set refresh rate at 75Hz with nouveau ? [SOLVED]

I'm running up-to-date arch and nouveau as video driver for old nvidia mx440 card, the lcd is 17 inch and X starts with 1024x768 when I try to edit /etc/X11/xorg.conf.d/20-nouveau.conf by changing this line
Modes "1280x1024"
into this  Modes "1280x1024_75.00" Probably not the right way to ask for 75 hz from nouveau.
I should mention I 'm considering this because though in my monitor guide 60 Hz is the optimal refresh, I get this watery shaking of image in the background when I try to drag the front active window by the title bar. I dont' know what causes this also had it on windows xp and solution was to up the refresh rate contrary to what the manual said.
If there is a solution to this I appreciate your help, thank you

Last edited by innn (2011-05-14 15:24:44)

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#2 2011-05-11 11:53:41

kokoko3k
Member
Registered: 2008-11-14
Posts: 2,393

Re: how do I set refresh rate at 75Hz with nouveau ? [SOLVED]

does "xrandr -r 75" works?


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#3 2011-05-12 04:13:28

innn
Member
Registered: 2010-10-12
Posts: 96

Re: how do I set refresh rate at 75Hz with nouveau ? [SOLVED]

do I run it as root or user, sorry to ask.


I did it as normal user and it worked one more question do I have to add the command to .xinitrc or elsewhere?

Last edited by innn (2011-05-12 04:17:53)

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#4 2011-05-12 04:30:16

agapito
Member
From: Who cares.
Registered: 2008-11-13
Posts: 641

Re: how do I set refresh rate at 75Hz with nouveau ? [SOLVED]

try to boot with video=1280x1024@75 at kernel line.


Excuse my poor English.

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#5 2011-05-13 07:15:03

innn
Member
Registered: 2010-10-12
Posts: 96

Re: how do I set refresh rate at 75Hz with nouveau ? [SOLVED]

agapito wrote:

try to boot with video=1280x1024@75 at kernel line.

tried it didn't work
"xrandr -r 75"  works but I don't know where to put it to make it persistent,
it's ok if I add it in ~/.xinitrc?
I have X starting automatically at boot

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#6 2011-05-14 15:11:20

kokoko3k
Member
Registered: 2008-11-14
Posts: 2,393

Re: how do I set refresh rate at 75Hz with nouveau ? [SOLVED]

I think It depends on your desktop environment, if any.
Or else, use .xinitrc


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#7 2011-05-14 15:24:26

innn
Member
Registered: 2010-10-12
Posts: 96

Re: how do I set refresh rate at 75Hz with nouveau ? [SOLVED]

ok , I've put it in .xinitrc I don't have DE just openbox , I'll see how it works , but I am left with the regret of not knowing why is it so hard to have a nice 60Hz refresh rate, nevermind. SOLVED

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