Build tips - Revision history

KevinWright: /* GRUB GRUB GRUB GRUB */

2014-05-15T00:01:02Z

GRUB GRUB GRUB GRUB

2014-05-13T22:12:10Z

2014-05-13T22:11:58Z

2014-04-16T22:06:21Z

2012-06-22T00:50:26Z

Video

2011-02-05T21:40:54Z

won't boot-up

2010-11-11T02:36:40Z

Radeon mobility U1 chipset: slow compiz/glxgears = drm issues in X (HP laptops and some others)

2010-11-11T02:33:15Z

2010-11-07T00:36:28Z

added instructions for fixing disappearing system panels

2010-10-14T19:58:55Z

System won't shut down

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 ==Hard drives==
 ===Hard drive clicks===
 ''symptom'': cool noises<br>

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	[https://docs.google.com/document/d/1h1iRNGDUydB6S1b7fTyfs1eTgrLyIvuTWnoKTHFEJXw/edit?usp=sharing Link]		[https://docs.google.com/document/d/1h1iRNGDUydB6S1b7fTyfs1eTgrLyIvuTWnoKTHFEJXw/edit?usp=sharing Link]

← Older revision		Revision as of 22:11, 13 May 2014
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		+	[https://docs.google.com/document/d/1h1iRNGDUydB6S1b7fTyfs1eTgrLyIvuTWnoKTHFEJXw/edit?usp=sharing Link]
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	[[Category:Build]]		[[Category:Build]]

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 ''solution 2:'' Hit escape when it says "GRUB loading" to get into the GRUB menu and hit 'e' to edit the first option. Then highlight the second line which stars "kernel /boot/vmlinuz..." and press 'e'. Insert "iommu=memapper=2" after "ro" and before "quiet splash", then press enter. Press 'b' to boot. Once you're in the operating system you will need to go to the terminal (Application > Accessories > Terminal) to save this command. Open up a terminal window and type in "sudo gedit /boot/grub/menu.lst". Scroll down to the first line that starts with "kernel /boot/vmlinuz..." (NOT the line that starts with #kernel) and insert "iommu=memapper=2" after "ro" and before "quiet splash" like before. Save and close the file. Type in "sudo update-grub" and hit enter. After GRUB is done updating, restart the computer to check if the issue has been solved. <br>
 ''solution 3:'' If all else fails, install a new video card. In 10.04, this is more common.  Please start [[Black_screen_10.04 | here.]]
 ==Networking==

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 The boot CD will be the A: drive, the thumbdrive will most likely be the B: drive.
-===[[won't boot-up]]===
 ==Sound==

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 ***an FPS under 250 means we are still using the software raterizer = (
-''explanation'': X is loading the necessary modules for direct rendering but the kernel reports an incomplete device state for the video chip. X expects either an old version of the radeon module (<=1.1) or a new version and KMS (kernel modesetting) to configure the state that X will use for the rest of our uptime.
+''explanation'': X is loading the necessary modules for direct rendering but the kernel reports an incomplete device state for the video chip. something about this particular chipset makes the kernel not quite expect it. X expects either an old version of the radeon module (<=1.1) or a new version and KMS (kernel modesetting) to configure the state that X will use for the rest of our uptime.
-''solution'': we like our current module version (~2.0), so we need for this module to be loaded and configured during boot:
+''solution'': we like our current module version (~2.0), so we need for this module configure itself during boot. we should poll ALL devices connected to the USB so our chipset is recognized and the module is automatically loaded.
   sudo nano -w /etc/default/grub
 add "irqpoll" option

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 ==Video==
 Read [[Xorg]] for general information.
 ===Lucid intel video chipset black screen on boot ( broken driver for many dells )===

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 $ rm -rf ~/.gconf/apps/panel <br>
 $ pkill gnome-panel <br>
 ===Pin-Out Settings for External Front Panel USB===

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 ===System won't shut down===
 ''symptom:'' The system is not shutting down completely <br>
-''solution:'' The problem is that a sound module fails to unload during shut down, preventing the machine from doing so. To fix this you need to remove the sound module in question  in the command line terminal. Go to Applications > Accessories > Terminal and type in "sudo gedit /etc/init.d/halt". After the first set of comments (signified by the #) add "rmmod snd_hda_intel". This will remove the troublesome sound module. <br>
+''solution 1.0:'' The problem is that a sound module fails to unload during shut down, preventing the machine from doing so. To fix this you need to remove the sound module in question  in the command line terminal. first see if the module is loaded.
-''solution 2.0:'' If the above doesn't work, try going to "sudo gedit /etc/modules" and adding "apm power_off=1".
 === System Panel is Missing Buttons ===