On Mon, 28 Feb 2005 17:40:50 +0000, Paul Howarth <paul@xxxxxxxxxxxx> wrote: > David Curry wrote: > > Ahmed Abdel-Aliem wrote: > > > >> On Mon, 28 Feb 2005 15:15:01 +0000, Paul Howarth <paul@xxxxxxxxxxxx> > >> wrote: > >> > >> > >>> Ahmed Abdel-Aliem wrote: > >>> > >>> > >>>> How Can i Change the refresh rate of the monitor > >>>> i use fedora core 3 > >>>> my screen resolution is 1280 X 1024 > >>>> when i go to Applications --> Preferences --> Screen Resolution > >>>> i find that there is only one value for the refresh rate which is 60 > >>>> Hz & i can't change it > >>>> i went to the file /etc/x11/xorg.conf > >>>> i found this section : > >>>> > >>>> Section "Monitor" > >>>> Identifier "Monitor0" > >>>> VendorName "Monitor Vendor" > >>>> ModelName "710E" > >>>> DisplaySize 330 250 > >>>> HorizSync 30.0 - 71.0 > >>>> VertRefresh 50.0 - 160.0 > >>>> Option "dpms" > >>>> EndSection > >>>> > >>>> what should i do to increase the refresh rate of my monitor from 60 Hz > >>>> to 90 Hz or 100 Hz ?? > >>>> > >>>> can anyone help me with this please ? > >>>> > >>> > >>> What is the make and model of your monitor? > >>> > >>> Do you know what the horizontal and vertical sync frequencies are that > >>> it supports (this information should be in the monitor manual)? > >>> > >>> Paul. > >>> > >>> > >> > >> > >> My Monitor is LG Studiowords 710E 17" > >> i can't find the manual now, but it supports up to 90 and 100 Hz cause > >> i use this refresh rate in windows it works fine with no problems > >> > >> > >> > >> > > You might be able to find the monitor specs online through a google search. > > I found one here: > http://translate.google.com/translate?hl=en&sl=pt&u=http://www.amx.com.br/_model1/produto.asp%3Fproduto%3DLG_02%26emp%3DISICONECTION&prev=/search%3Fq%3D%2522Studioworks%2B710E%2522%2Bhorizontal%2Bsync%26hl%3Den%26lr%3D%26c2coff%3D1%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DG > > However, the information there appears to contradict itself. > > It says the horizontal frequency range is 30-70 KHz and the vertical > frequency range is 50-160 Hz (which appear to be very similar to the the > auto-detected specs in the xorg.conf file above), and that the monitor > is capable of 1280x1024 at 85Hz. > > If you go to http://www.sh.nu/nvidia/gtf.php (modeline calculator) and > plug in 1280x1024 at 85 Hz refresh rate, you get a required horizontal > sync frequency of over 91 KHz, which is well above the published > specification. So something is definitely wrong. > > If you are absolutely sure that the monitor can do this resolution, you > could change the "HorizSync 30.0 - 71.0" to "HorizSync 30.0 - 92.0" in > your xorg.conf and that should allow a higher refresh rate. However, if > you monitor does not support this rate, it could be damaged, so beware. > > Paul. i changed the values in the file and it didn't work, the monitor gave me a warning and rebooted, so i booted to windows :( to send this email, is there a way i can modify the file again to the old value so i don't have to install Fedora again ! i tried using the boot cd choosed the rescue mode and in the shell i found the folder etc but inside it i couldn't find the folder x11 which has the file i modified is there a way to do this ? -- Ahmed Abdel-Aliem Web Developer www.ApexScript.com 0101108551 registered Linux user number 382789
