Resolution

Ab3n · 02-14-2005, 08:35 PM

I have configured xorg.conf so that my default depth is 24 and under the 24 bit modes I have inserted "1280x800", but when I restart my computer 1024x768 is the highest res. I can get!
What am I doing wrong?

Okie · 02-14-2005, 08:44 PM

Quote:

Originally posted by Ab3n
I have configured xorg.conf so that my default depth is 24 and under the 24 bit modes I have inserted "1280x800", but when I restart my computer 1024x768 is the highest res. I can get!
What am I doing wrong?

trying to go to a higher resolution than your monitor can handle???

not an insult, just a guess, xorg could be protecting your monitor from exploding, try a lower depth like 16 then you might be able to get 1280X800 just another half educated guess...

killerbob · 02-14-2005, 08:51 PM

1280x800 is also a bit of a weird resolution... usually, it's 1280x1024 or 1280x960. Are you sure your monitor supports that resolution in the first place?

BTW, it does sound like your colour depth is the problem. Take a look at your xorg.conf and change the default colour depth to 16 instead of 24, see if that works.
good luck.

jimdaworm · 02-14-2005, 08:52 PM

Show us your xorg.conf a fool proof way of fixing the problem assuming you don´t need to switch resolutions could be to only put "1280x800" in your 24 bit mode line.

****That always happens... 3 people answering at the same time*****

Ab3n · 02-14-2005, 09:07 PM

Code:

# **********************************************************************
# Screen sections
# **********************************************************************

# Any number of screen sections may be present.  Each describes
# the configuration of a single screen.  A single specific screen section
# may be specified from the X server command line with the "-screen"
# option.
Section "Screen"
    Identifier  "Screen 1"
    Device      "VESA Framebuffer"
    Monitor     "My Monitor"

# If your card can handle it, a higher default color depth (like 24 or 32)
# is highly recommended.

#   DefaultDepth 8
   DefaultDepth 16
#   DefaultDepth 24
#   DefaultDepth 32

# "1024x768" is also a conservative usable default resolution.  If you
# have a better monitor, feel free to try resolutions such as
# "1152x864", "1280x1024", "1600x1200", and "1800x1400" (or whatever your
# card/monitor can produce)

    Subsection "Display"
        Depth       8
        Modes "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes  "1280x800" "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes  "1280x800" "1024x768" "800x600" "640x480"
    EndSubsection
    Subsection "Display"
        Depth       32
        Modes "1024x768" "800x600" "640x480"
    EndSubsection

EndSection

I changed it to 16 and It still didnt work. I have a widescreen lcd on my laptop, thats the reason for the odd resolution.

killerbob · 02-14-2005, 09:20 PM

You're using VESA as your display driver. That doesn't support a resolution higher than 1024x768.

Ab3n · 02-14-2005, 09:24 PM

I have a radeon mobility 9000 igp and they don't seem to make linux drivers for this card...what should I do?

jimdaworm · 02-14-2005, 09:28 PM

The easiest thing thing might be to download and install the drivers from ATI ... this says its compatable

Quote:

http://www2.ati.com/drivers/linux/linux_8.8.25.html

Ab3n · 02-14-2005, 09:39 PM

Sorry, Im a newb but how do I install fglrx_6_8_0-8.8.25-1.i386.rpm? I tried kpackage but it gave me a bunch of dependancy errors.

killerbob · 02-14-2005, 09:41 PM

If you go to http://www.ati.com/ and click on Software & Drivers, you'll find the right driver. Choose Linux x86 for the operating system, Graphics Driver for the software, and scroll down on the right to RADEON 9000 series. Mobility 9000 IGP is included in the 9000 series.

edit: You got that far already.... To install the RPM, first run rpm2tgz on it. That'll convert the file to a Slackware package, so it can be easily removed with pkgtool, and so you don't run into dependency failures with RPM.

Then, use installpkg on the file you've just created. You need to be root for that. Go to /etc/X11, make a backup of your xorg.conf, and run fglrxconfig. It'll create the xorg.conf file, but it'll be named for XF86-4. Just rename the file to xorg.conf and you're good to go.

Ab3n · 02-14-2005, 09:44 PM

I think im doing something wrong, because the fglrxconfig command isn't found...

Ab3n · 02-14-2005, 10:39 PM

When I used installpkg it just said:

Installing package fglrx_6_8_0-8.8.25-1.i386...
PACKAGE DESCRIPTION:

and that was it, is that normal?

jschiwal · 02-15-2005, 01:12 AM

Could you try adding a ModeLine for that resolution?

use the 'gtf' program to generate one.
gtf 1280 800 60 -x

Do you have a laptop with a wide screen lcd display?
You could also google for "1280x800" and your computer model or your graphics card. You may end up with a sample XF86config file.

egag · 02-15-2005, 09:58 AM

i think you can use the radeon driver.
look here for details :

http://lists.debian.org/debian-lapto.../msg00157.html

egag

IsaacKuo · 02-15-2005, 10:48 AM

A few points:

1. Try out the open source "ati" driver if you find installing Ati's official drivers a bit scary. I've never used Ati's official drivers, and I'm happy with the open source driver (Radeon 7200, Radeon 7000, Rage128).

2. The generic "vesa" driver DOES support resolutions above 1024x768. Before I figured out to change the driver, I used Knoppix's default install of "vesa" with my Radeon 7200. I had configured my own custom interlaced 1280x960 modeline (for my HDTV), and the vesa driver supported it perfectly. It even supported the hardware overlay for smooth video playback! There was no support for OpenGL 3d accelerated graphics, though.

3. Here's my favorite modeline generator; it's an interactive web site: Colas XFree Modeline Generator

Unfortunately, you may need to know the required refresh rate in addition to the resolution. Assuming a refresh rate of 60hz, Colas Modeline Generator gives:

ModeLine "1280x800" 87.09 1280 1336 1616 1728 800 802 814 840 #60Hz

You'll want to insert this modeline in the section for "My Monitor" (which you didn't quote). Also, in your "My Monitor" section, there will be some numbers representing ranges for the horizontal and vertical sync rates--increase those maximums to ensure your high resolution modelines won't be ignored.

Also, in your Screen section remove all resolutions except for 1280x800. It will look something like:

Code:

    Subsection "Display"
        Depth       8
        Modes  "1280x800"
    EndSubsection
    Subsection "Display"
        Depth       16
        Modes  "1280x800"
    EndSubsection
    Subsection "Display"
        Depth       24
        Modes  "1280x800"
    EndSubsection
    Subsection "Display"
        Depth       32
        Modes  "1280x800"
    EndSubsection

4. Finally, are you using GNOME or KDE? KDE will meekly accept that 1280x800 is the only available resolution, but GNOME will thickheadedly force whatever resolution it was last set to. Other window managers will simply run with whatever resolution is handed to them.