I915 and KMS problem

Hi to all, I have bought a new netbook, an acer with intel 3150 graphics. It works well but it has a little glitch. When I boot up the system the kernel shows the usual messages ( I have removed quiet from the kernel boot parameters ) and it starts up kms well. However after the execution of all the hooks in the initramfs the screen goes black and it reactivates just after executing the hal daemon. Then the system loads the window manager and it works great.
However it is annoying to see the screen going black during the boot process. I think it could be an acpi problem. Because the kms works, the xorg starts, after executing hal the screen reactivates and during the first part of the boot process I can see kernel messages and the screen setted to the proper resolution ( 1024x600 ).
I have inserted the i195 and intel_agp modules into the initramfs. If I delete these modules from the initramfs the screen goes black too but it reactivates earlier ( I suppose when the i915 driver gets loaded ).
From the /etc/logs/everything.log I cannot see errors or strange behaviours. I'm using syslinux to boot the system and I have as parameters only i915.modeset=1. I tried the SVIDEO option but it doesn't work.
P.S. I have tried setting the splash boot parameter too, but I cannot see the arch logo on the top of the screen. This is another reason why I think it is an acpi problem.
Last edited by pabloski (2010-10-20 09:49:57)

Thanks for the reply. I haven't used the arch method to build a kernel, but in the old days of redhat and caldera I have built a lot of kernels manually. I have seen the number of options have grown, so it will need a bit of study to configure it good.
Also I have seen another ( real strange ) problem. I'm using encrypted volumes for the system and on the 32 bit kernel ( the netbook ) I can use cryptsetup/device mapper without problems with 2.6.35 kernel, on the 64 bit desktop the 2.6.35 kernel causes troubles to cryptsetup ( it says that cannot mount /dev/sda as read-only or something like this ). I haven't investigated too much ( I'm using the 2.6.33 kernel on the desktop ) but I suspect it could be a configuration problem in the 64 bit kernel package.

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Last edited by twilight0 (2011-05-13 20:30:27)

I 've made some more edits and this is my current xorg.conf
http://pastebin.com/x6ubG80K
I have ColorTiling set on for performance, be careful as it may be resource hungry in 3D apps but it increases dramatically fps.
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import java.io.*;
import java.net.*;
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import java.awt.color.*;
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     double eB = 0;                                   // equipment bonus'
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     rockCrab() {
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          fA = random() * bA;
          fH = random() * bD;
          done = rint(fH - fA);
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import java.lang.*;
import java.io.*;
import java.net.*;
import java.util.*;
import java.util.Random;
import static java.lang.Math.*;
import java.awt.*;
import java.awt.color.*;
class self {
     //Wounding formula
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     double aB = 0;                                 // equipment stats
     double eS = (sL * bP) + 3;                         // effective strength
     double bD = floor(1.3 + (eS/10) + (aB/80) + ((eS*aB)/640));     // my base damage
     //Attack formula
     double aL = 1;                                   // my Attack Level
     double eD = 1;                                   // enemy's Defence
     double eA = aL / eD;                              // effective Attack
     double eB = 0;                                   // equipment bonus'
     double bA = ((eA/10) * (eB/10));                    // base attack
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     double fA = random() * bA;
     double fH = random() * bD;
     double done = rint(fH - fA);
     //health formula
     double health = floor(10 + sL/10 * aL/10);
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          fA = random() * bA;
          fH = random() * bD;
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class fight {
     public static void main(String[] args) {
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          rockCrab instance2 = new rockCrab();
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          System.out.println("rockCrabs health: " + instance2.health);
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          System.out.println("rockCrabs health: " + instance1.health);
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          System.out.println("You hit: " +instance1.done);
          System.out.println("rockCrabs health: " + instance2.health);
          instance1.health = instance1.health - instance2.done;
          System.out.println("RockCrab hit: " +instance2.done);
          System.out.println("rockCrabs health: " + instance1.health);
          instance2.health = instance2.health - instance1.done;
          System.out.println("You hit: " +instance1.done);
          System.out.println("rockCrabs health: " + instance2.health);
          instance1.health = instance1.health - instance2.done;
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          System.out.println("rockCrabs health: " + instance1.health);
          instance2.health = instance2.health - instance1.done;
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          System.out.println("rockCrabs health: " + instance2.health);
          instance1.health = instance1.health - instance2.done;
          System.out.println("RockCrab hit: " +instance2.done);
          System.out.println("rockCrabs health: " + instance1.health);
}when the code is run it says something like this:
you hit 1
RockCrabs health is 9
RockCrab hit 7
your health is 38
you hit 1
RockCrabs health is 8
RockCrab hit 7
your health is 31
you hit 1
RockCrabs health is 7
RockCrab hit 7
your health is 24
you hit 1
RockCrabs health is 6
RockCrab hit 7
your health is 17
my point is whatever some one hits it always repeats that
my expected output would have to be something like
you hit 1
RockCrabs health is 9
RockCrab hit 9
your health is 37
you hit 3
RockCrabs health is 6
RockCrab hit 4
your health is 33
you hit 2
RockCrabs health is 4
RockCrab hit 7
your health is 26
you hit 3
RockCrabs health is 1
RockCrab hit 6
your health is 20
Edited by: rade134 on Jun 4, 2009 10:58 AM

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