Graphics ok LiveCD, only 640x480 after install..?

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Graphics ok LiveCD, only 640x480 after install..?

Postby fripster on Thu Dec 27, 2012 12:53 pm

Hi all,

I am a relative newbie in Linux and have been trying very hard to get the graphics working on my Amilo L6825 from Fujitsu Siemens. It works 'out of the box' from the LiveCD (Linux Mint 14 Nadia, Mate version) but once installed on the HDD, i get only 640x480. Have been scouring the internet for how-to's, have learned all the ins and outs of writing your xorg.conf files (very good learning though...) but STILL the box won't work at the normal 1024x768 which it so happily does from the CD. The output of the Inxi -G command looks like this:
Code: Select all
mint@mint ~/Desktop $ inxi -G
Graphics:  Card: Intel 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device
           X.Org: 1.13.0 drivers: intel (unloaded: fbdev,vesa) Resolution: 1024x768@60.0hz
           GLX Renderer: N/A GLX Version: N/A
mint@mint ~/Desktop $

which is fine. but WHY does this not work from HDD? What is the difference?? (Oh yeah: ddcprobe finds lots of things, just not the EDID data of the panel (it gives an 'edidfail' fault message)

I sincerely hope you folks can help me!

Best regards,

Fripster
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Re: Graphics ok LiveCD, only 640x480 after install..?

Postby fripster on Sat Dec 29, 2012 4:20 pm

bump.. anyone?
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Re: Graphics ok LiveCD, only 640x480 after install..?

Postby mank_in on Sun Dec 30, 2012 12:45 am

The last time i tested mobo with i845 graphic working is with LM12 LXDE ( Mesa 7.11 ) : viewtopic.php?t=100241&f=151
I think i845 is not supported in MESA 9.0 . You can try downgrade mesa version like this one : viewtopic.php?f=59&t=120296
But i never try downgrade MESA . use with your own risk. And i think the best option is install LM12 LXDE.
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Sorry for my bad English , I am Indonesian.
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Re: Graphics ok LiveCD, only 640x480 after install..?

Postby cwsnyder on Sun Dec 30, 2012 2:13 pm

I may have to write a How To: Fix your graphics resolution problems.

In the latter versions of Debian/Ubuntu/Mint, X has been upgraded and pretty much ignores your /etc/X11/xorg.conf file. If your graphics system leaves you with too low a resolution, you have to use xrandr (from the x11-xserver-utils Debian package if you don't already have it installed). Xrandr is a command-line only utility, but don't run away looking for another alternative. Why?!? This stuff works, most of the rest of the advice on the Internet doesn't work. /etc/X11/xorg.conf can still fix problems with multiple monitors and input devices, but does $%^& for fixing resolution problems.

First, figure out what mode line you need to get the resolution you need to get the native resolution of your display using cvt. Look at man cvt for instructions on how to use it. Enter xrandr on a line by itself after you have done this. This is to find the alphanumeric name of the display that is listed as 'connected' to your monitor. Use that information with the structure found in https://wiki.ubuntu.com/X/Config/Resolution with the additional information that on the last line where it says something like xrandr --output LVDS-1 --mode 1024x768 , change it to read xrandr --output LVDS-1 --gamma 1:1:1 --mode 1024x768 if xrandr's output complains about not being able to read the gamma from your display.
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Re: Graphics ok LiveCD, only 640x480 after install..?

Postby fripster on Thu Jan 03, 2013 4:53 pm

thanks for the tips... been working with xrandr already to no avail but will give it another try...
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Re: Graphics ok LiveCD, only 640x480 after install..?

Postby DrHu on Thu Jan 03, 2013 5:00 pm

You have an intel driver , so you could use an xorg.conf file (/etc/X11/xorg.conf) with the resolution you want
--use vesa mode and set the resolution and frequency of the monitor..
--the intel-X11 driver option may also be a choice, that should provide vesa settings and would be in the package manager program selections available: you could check the programs available for the X-server or Intel and see what exists..

A good guide to xorg.conf settings and various driver file installs..
https://wiki.archlinux.org/index.php/Xorg
    Monitor settings
    Getting started...
    --you probably don't need to use their choice of conf name (monitor.conf), but instead can use a standard xorg.conf
      I think that so far autconfig for X11 server settings ignore an /etc/X11/xorg.cong file [b]unless it is there (exists (you do have to create one, since Ubuntu later Linuxes do not do so by default (ubuntu/Mint..))
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