Re: [gentoo-user] Re: How to set monitor refresh rate in xorg
Mrugesh Karnik wrote: > Robert S wrote: > >> I've looked at that - the "Monitor" section in my xorg.conf looks >> like this: >> >> Section "Monitor" >> Identifier "Dell" >> HorizSync31.0 - 54.0 >> VertRefresh 50.0 - 120.0 >> EndSection >> >> In other words, it allows a VertRefresh rate of up to 120. I looked >> at the Dell specs. It still does not do 87 by default. >> > IIRC, xorg guesses the correct refresh rate automatically according to > the frequencies you input. Having said that, I wonder if it varies > with the resolution? (Not an expert with monitors!) I've been able to > use 1024 with 75 Hz refresh rate, but at 1280, it drops to 60 > automatically... Just curious, most probably I'm wrong... You are not wrong, that is exactly how it works. A monitor that can do [EMAIL PROTECTED] can do [EMAIL PROTECTED], [EMAIL PROTECTED], etc. The numbers here are not exact, but maximum refresh rate does drop with higher resolutions. Robert, X normally chooses the highest refresh rate for a given resolution. Take a look at /var/log/Xorg.0.log for clues. You should see a bunch of "Default mode" lines the describe the different built-in resolutions and refresh rates that X can use. Some of them get rejected because your monitor can't do them, this is normal. I suspect the final resolution will be either: 1. Easy. Remove the HorizSync and VertRefersh lines from xorg.conf, because they can normally be auto-detected anyway. 2. More difficult. You may need to add a Modeline to your Monitor section. To create this, use the KDE control to set your desired resolution and refresh rate. Then run a program called "xvidtune" from a konsole window. It is a very old program used to make fine adjustments to display settings. Click 'ok' on the warning dialog, and just hit "Show". That will output a current modeline to the konsole window. Then you just need to add it to the Monitor section: Section "Monitor" Identifier "Dell" # HorizSync31.0 - 54.0 # optional # VertRefresh 50.0 - 120.0 # optional ModeLine EndSection -Richard -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] Re: How to set monitor refresh rate in xorg
Robert S wrote: I've looked at that - the "Monitor" section in my xorg.conf looks like this: Section "Monitor" Identifier "Dell" HorizSync31.0 - 54.0 VertRefresh 50.0 - 120.0 EndSection In other words, it allows a VertRefresh rate of up to 120. I looked at the Dell specs. It still does not do 87 by default. On 4/24/05, Matan Peled <[EMAIL PROTECTED]> wrote: Robert S wrote: I've just installed a new Dell monitor. I've set the vert/horiz refresh rates using the manufacturers' specs (congrats to Dell for making these easily available). When I get into X I get a refresh rate of 60Hz by default, but I'm able to increase this to 87 using the KDE control center. How do I enable the refresh rate of 87 in /etc/X11/xorg.conf? There doesn't seem to be a refresh rate option there. Presumably I'd only get the rate of 87Hz for users who have it set up in their KDE settings and it wouldn't be available with other window managers. RTFM. Namely, man xorg.conf, this part ( Monitor section ) in particular: VertRefresh vertrefresh-range gives the range(s) of vertical refresh frequencies supported by the monitor. vertrefresh-range may be a comma separated list of either discrete values or ranges of values. A range of values is two values separated by a dash. By default the values are in units of Hz. They may be specified in MHz or kHz if MHz or kHz is added to the end of the line. The data given here is used by the Xorg server to determine if video modes are within the spec- ifications of the monitor. This information should be available in the monitor's handbook. If this entry is omitted, a default range of 43-72Hz is used. -- [Name ] :: [Matan I. Peled] [Location ] :: [Israel] [Public Key] :: [0xD6F42CA5] [Keyserver ] :: [keyserver.kjsl.com] encrypted/signed plain text preferred IIRC, xorg guesses the correct refresh rate automatically according to the frequencies you input. Having said that, I wonder if it varies with the resolution? (Not an expert with monitors!) I've been able to use 1024 with 75 Hz refresh rate, but at 1280, it drops to 60 automatically... Just curious, most probably I'm wrong... -- gentoo-user@gentoo.org mailing list
[gentoo-user] Re: How to set monitor refresh rate in xorg
I've looked at that - the "Monitor" section in my xorg.conf looks like this: Section "Monitor" Identifier "Dell" HorizSync31.0 - 54.0 VertRefresh 50.0 - 120.0 EndSection In other words, it allows a VertRefresh rate of up to 120. I looked at the Dell specs. It still does not do 87 by default. On 4/24/05, Matan Peled <[EMAIL PROTECTED]> wrote: > Robert S wrote: > > I've just installed a new Dell monitor. I've set the vert/horiz > > refresh rates using the manufacturers' specs (congrats to Dell for > > making these easily available). > > > > When I get into X I get a refresh rate of 60Hz by default, but I'm > > able to increase this to 87 using the KDE control center. > > > > How do I enable the refresh rate of 87 in /etc/X11/xorg.conf? There > > doesn't seem to be a refresh rate option there. Presumably I'd only > > get the rate of 87Hz for users who have it set up in their KDE > > settings and it wouldn't be available with other window managers. > > > > RTFM. > > Namely, man xorg.conf, > > this part ( Monitor section ) in particular: > >VertRefresh vertrefresh-range > gives the range(s) of vertical refresh frequencies supported > by > the monitor. vertrefresh-range may be a comma separated list > of > either discrete values or ranges of values. A range of > values > is two values separated by a dash. By default the values are > in > units of Hz. They may be specified in MHz or kHz if MHz or > kHz > is added to the end of the line. The data given here is used > by > the Xorg server to determine if video modes are within the > spec- > ifications of the monitor. This information should be > available > in the monitor's handbook. If this entry is omitted, a > default > range of 43-72Hz is used. > > > -- > [Name ] :: [Matan I. Peled] > [Location ] :: [Israel] > [Public Key] :: [0xD6F42CA5] > [Keyserver ] :: [keyserver.kjsl.com] > encrypted/signed plain text preferred > > > -- gentoo-user@gentoo.org mailing list
