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How to get X at 1152x864@75Hz?
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tdm
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PostPosted: Mon Jan 06, 2003 8:55 pm    Post subject: How to get X at 1152x864@75Hz? Reply with quote

I can't get X to run at a resolution of 1152x864.
This is what I got in my XF86Config file:
Code:
Section "Monitor"

Identifier  "NoName Monitor"
     HorizSync   30-64         # multisync
     VertRefresh 50-70
EndSection

Section "Device"
    Identifier  "MSI-GF4ti4600"
    #Driver      "nv"
    Driver   "nvidia"
    #VideoRam    131072
    # Insert Clocks lines here if appropriate
EndSection

Section "Screen"
    Identifier  "Screen 1"
    Device      "MSI-GF4ti4600"
    Monitor     "NoName Monitor"
    DefaultDepth 24

    Subsection "Display"
        Depth       24
        Modes       "1152x864" "1024x768"
        ViewPort    0 0
    EndSubsection
EndSection

As far as I know this should be good.. but X takes the 1024x768 (I don't know at which refresh rate, no OSD menu at my monitor but it can handle 1152x864@75Hz.. I always runned at it in Windows).
My monitor is a 17" no name/brand one.. no specifications on it, no number, nothing so I just took the standard XFree HorizSync and VertRefresh.

So my questions:
1. How can I get X running at 1152x864?
2. How can I get X running at 75Hz?
3. How can I check which resolution/refresh rate X is running? (I found the resolution in the X log.. but isn't there any tool for to check it?)

Thanks![/code]
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chez
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PostPosted: Mon Jan 06, 2003 9:00 pm    Post subject: monitor info Reply with quote

If you have run this under windows, what does windows define your monitor as? Even the back of the monitor has no identifiers on it? That is somewhat odd.
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tdm
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PostPosted: Mon Jan 06, 2003 9:14 pm    Post subject: Reply with quote

In Windows I just used the plug & play monitor which can handle 1280x1024@75Hz, that's all info I ever saw of my monitor in windows.
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Klovnen
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PostPosted: Mon Jan 06, 2003 9:55 pm    Post subject: Reply with quote

i have also this "problem", but i could use X with 1152x864@75Hz when i used mandrake 8.2 and with slackware 8.1. no xf86 upgrade. when I used FreeBSD 7.5 was there some sort of problem with 1152x864, but i don't remember exactly what it was. think that everything was waay to small or something.
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yagami
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PostPosted: Mon Jan 06, 2003 10:00 pm    Post subject: at 75hz Reply with quote

well , at 75 hz , you are going to need more horizontal refresh than 64 !

see the /var/log/XFree86.0.log or something and see why it is being deleted.

if it is because horizontal sync , just decrese the first number in the modeline

to get a modeline in the first place , there are some apps that create generic modelines ..... maybe be a risc , but i might work. (search at freshmeat )

that how i managed a 1600x1200 in a 1280x1024 maximum monitor :)
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Klovnen
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PostPosted: Mon Jan 06, 2003 10:08 pm    Post subject: Re: at 75hz Reply with quote

yagami wrote:

that how i managed a 1600x1200 in a 1280x1024 maximum monitor :)


:twisted: but isn't that a pain in the eye? if you have low hz i mean
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vers_iq
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PostPosted: Mon Jan 06, 2003 10:09 pm    Post subject: Reply with quote

u can check the refresh rate using xvidtune
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yagami
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PostPosted: Mon Jan 06, 2003 10:30 pm    Post subject: Reply with quote

Quote:
but isn't that a pain in the eye? if you have low hz i mean


well , yeah and no ....
i have 1600x1200 at 56hz ( only 4 less than 60 ... and i've been using 60 all my life )

i could go to 57 , 58 , but than the image would not be very good and that would hurt my eyes

saying that , usually i use 1280x1024 or 1024x768 , as for reading ... and general stuff
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mezz
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PostPosted: Mon Jan 06, 2003 11:42 pm    Post subject: Re: How to get X at 1152x864@75Hz? Reply with quote

tdm wrote:
1. How can I get X running at 1152x864?

Delete the "1024x768"..

tdm wrote:
2. How can I get X running at 75Hz?

Tweak the VertRefresh under the monitor section. Ex: If you want 75Hz, then do the 75-100.. If you want to do 80, then do the 80-100 (range).. You can keep push until it crashes or get wrong size of resolution. 80Hz is higher what I can push so far. If you lower the colour bit from 24 to 16 and you will have the better refresh rate.

tdm wrote:
3. How can I check which resolution/refresh rate X is running? (I found the resolution in the X log.. but isn't there any tool for to check it?)

Hit the monitor's option buttons and you should see the display of Hz/resolution in there. Whole my five monitors (old-new) have it.

One more thing, you can add Modeline (not really help on refresh rates, thought), here are tool that will help you -> http://xtiming.sourceforge.net ..
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scocou
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PostPosted: Mon Jan 06, 2003 11:42 pm    Post subject: Reply with quote

This may or may not help you, it's worth a try since you have an Nvidia card. While perusing /usr/share/doc/nvidia-glx-1.0.3123/README for options to tune my Ti4200's XF86Config I found this option;

Option "UseEdidFreqs" "True/False"

This option causes the X server to use the HorizSync and VertRefresh ranges given in a display device's EDID, if any. EDID provided range information will override the HorizSync and VertRefresh ranges specified in the Monitor section. If a display device does not provide an EDID, or the EDID doesn't specify an hsync or vrefresh range, then the X server will default to the HorizSync and VertRefresh ranges specified in the Monitor section.

A google search for EDID found;
Extended Display Identification Data is a VESA standard data format that contains basic information about a monitor and its capabilities, including vendor information, maximum image size, color characteristics, factory pre-set timings, frequency range limits, and character strings for the monitor name and serial number.

Bottom line - If you set this option to "True" your incorrectly specified values will be ignored if your monitor has EDID.

Identifier "NoName Monitor"
HorizSync 30-64 # multisync
VertRefresh 50-70
EndSection

I can see that you've specified your vertical refresh range as 50Hz through 70Hz, so obviously you can't run a greater refresh rate than 70Hz! Maybe you meant 50-170 (mine's 50-160). Good luck!
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Last edited by scocou on Tue Jan 07, 2003 6:34 am; edited 1 time in total
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nbensa
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PostPosted: Tue Jan 07, 2003 2:06 am    Post subject: Re: How to get X at 1152x864@75Hz? Reply with quote

tdm wrote:
Code:
Section "Monitor"

Identifier  "NoName Monitor"
     HorizSync   30-64         # multisync
     VertRefresh 50-70
EndSection


Are those correct values for your monitor?
This is my XF86Config section and I get 1152x864@75

Code:
Section "Monitor"
        Identifier      "Monitor0"
        HorizSync       30-77
        VertRefresh     47-104
        Option          "DPMS"
        DisplaySize     304 228
EndSection
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tdm
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PostPosted: Tue Jan 07, 2003 10:03 am    Post subject: Reply with quote

scocou wrote:
This may or may not help you, it's worth a try since you have an Nvidia card. While perusing /usr/share/doc/nvidia-glx-1.0.3123/README for options to tune my Ti4200's XF86Config I found this option;

Option "UseEdidFreqs" "True/False"


Awsome, this option works perfectly. Now X runs perfect on 1152x864@75Hz :D

Thanks for the great help all :D
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Bobbie
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PostPosted: Tue Jan 07, 2003 11:21 pm    Post subject: Reply with quote

The nv driver doesn't seem to have a default mode of 1152x852 at anything higher than 75Hz. Since I wanted 85Hz i generated a modeline on this great site:

http://zaph.com/Modeline/Calculate.py?sec=981023

and it worked ! (just leave the defaults for anithing other than resolution)

[/url]
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