HP/Compaq Team

Intel PRO/Wireless 2200BG and 2915ABG using the lpw2200 driver

The indicator light for the Wifi on/off switch does not come on.This confuses quite a few customers (who have turned off their Wifi but do not know how to verify that they have done so). The solution can be found at the following link With thanks to Levi for the fix.

BIOS passwords on nc series

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6910p

Issue

When booting off a standard Ubuntu 10.04 image, the Ubuntu splash screen appears and then displays a Low-graphics mode prompt.

Solution

This occurs because the Xserver is, for whatever reason, expecting an nVidia driver despite not having an nVidia GPU. You can confirm this with the following command:

 lspci -k | grep -iA2 vga

In this case, there was a file /etc/X11/xorg.conf that explicitly had an nvidia driver listed. Changing the file to ask for an intel driver didn't work, so just deleting the xorg.conf and xorg.conf.fallback files forced the Xserver to initialize a new configuration file based on the hardware in the system.

To summarize, run the following command to solve this issue:

 sudo rm /etc/X11/xorg.conf* ; sudo reboot

nc6220

Issue

While booted into the standard 10.04 desktop environment, the screen will periodically flash on and off, rerendering its windows and desktop.

Solution

It appears this is a bug local to 10.04; swapping in an imaged HDD with Xubuntu 12.04 appears to ameliorate the issue.

The foundation of the problem appears to have stemmed from udev or some similar hardware event detection service thinking the laptop's lid had closed, or otherwise needed to turn off its LCD backlight. It was likely an issue with the Intel integrated graphics driver (i915) and this particular chipset.

Tried to send different directives and boot parameters to the i915 driver (e.g., i915=nomodeset, etc) to no avail. Simply watching the status of the lid from procfs (watch -n2 cat /proc/acpi/button/lid/LID/state) would show the system intermittently, and without obvious cause, changing its state to closed. This bug would almost reliably surface when connecting an ethernet cable to the system, but not always.