10 More Discussions You Might Find Interesting
1. What is on Your Mind?
Hello,
Long-time Unix hacker here - I've worked on four variants of the kernel prior to the introduction of Linux. In my spare time, I've written Linux (Ubuntu) device drivers, kernel modules, cross-compiled, and built the kernel.
I'd like to do Linux internals/device drivers as a day job,... (1 Reply)
Discussion started by: OriginalVersion
1 Replies
2. Hardware
Hi,
I would like to ask related to video graphics driver specifically the AMD (radeon HD 7000 series) or had someone with the same experience or problem that im currently experiencing and willing to share some info. I understand that the kernel is self contain it will not affect the installed... (3 Replies)
Discussion started by: jao_madn
3 Replies
3. UNIX Benchmarks
Just for fun:
CPU/Speed: 2x AMD Opteron Model 2384 (2.7GHz/512KB) quad core processor
Ram: 4 x2GB ECC DDR2-667 single rank memory
in RAID 0 mode (strip 128KB, Read Caching enabled, Write Caching disabled) with 2 HDD, CPUTYPE=opteron, CFLAGS= -O2 -fno-strict-aliasing -pipe, CXXFLAGS+=... (0 Replies)
Discussion started by: Success_Tree
0 Replies
4. BSD
FreeBSD Kernel Internals, Dr. Marshall Kirk McKusick
nwbqBdghh6E
The first hour of Marshall Kirk McKusick's course on FreeBSD kernel internals based on his book, The Design and Implementation of the FreeBSD Operating System. (0 Replies)
Discussion started by: Neo
0 Replies
5. Linux
Hi,
Does anybody have a good pointer on Linux kernel internals for ARM architecture? I can locate plenty for x86 but since ARM is RISC I think there would be subtle changes. So if somebody has a knowledge of good document on Linux Kernel internals for ARM or even a comparative study of kernel on... (0 Replies)
Discussion started by: Rakesh Ranjan
0 Replies
6. BSD
All,
I am a bit of a BSD newbie and haven't really played with it for years, but I have had a recent situation whereby someone attempted to load a custom kernel module and ended up breaking my BSD server.
I managed to fix it by doing the following:
Booting into loader mode:
unload
set... (3 Replies)
Discussion started by: drbabbers
3 Replies
7. UNIX for Dummies Questions & Answers
I got the freebsd kernel source from the first install CD(in directory:\7.0-RELEASE\src\),isn't right? if so,how can i read it? Is there any tools? (4 Replies)
Discussion started by: zhouq3132
4 Replies
8. UNIX for Advanced & Expert Users
I got the freebsd kernel source from the first install CD(in directory:\7.0-RELEASE\src\),isn't right? if so,how can i read it? Is there any tools? (1 Reply)
Discussion started by: zhouq3132
1 Replies
9. BSD
Does anyone know how to enter the Kernel Configuration program in FreeBSD before installation to resolve conflicts of hardware?:confused: (3 Replies)
Discussion started by: Enoch Chan
3 Replies
10. UNIX for Dummies Questions & Answers
I have set-up FreeBSD on an HP Vectra Intel Based PC, now when I go to /stand/sysinstall and "do a post installation configuration" and try to set-up the XFree86 server under Video card the model of my card does not exist. My video card model is SiS 6205 but FreeBSD supports or listed only 5205. I... (5 Replies)
Discussion started by: charlie499
5 Replies
ACPI_VIDEO(4) BSD Kernel Interfaces Manual ACPI_VIDEO(4)
NAME
acpi_video -- ACPI Video Extensions driver
SYNOPSIS
device acpi_video
DESCRIPTION
This driver uses the ACPI Video Extensions to control display switching and backlight brightness. The availability of the sysctl(8) vari-
ables depends on the functions offered by the host's ACPI implementation.
SYSCTL VARIABLES
The following sysctls are currently implemented, where <device> is crt, lcd, or tv:
hw.acpi.video.<device>.active
Current state of the output device.
hw.acpi.video.<device>.levels
List of supported brightness levels.
hw.acpi.video.<device>.brightness
Current brightness level of the device.
hw.acpi.video.<device>.fullpower
Preset brightness level to be used in full power mode.
hw.acpi.video.<device>.economy
Preset brightness level to be used in economy mode.
Defaults for these variables can be set in sysctl.conf(5), which is parsed at boot-time.
SEE ALSO
acpi(4), loader.conf(5), sysctl.conf(5), sysctl(8)
HISTORY
The acpi_video driver first appeared in FreeBSD 5.3.
AUTHORS
The acpi_video driver was written by Taku YAMAMOTO <taku@cent.saitama-u.ac.jp>. This manual page was written by Mark Santcroos
<marks@ripe.net>.
BUGS
Some systems only perform output switching via SMM even though they export the proper information via ACPI. On such systems, the proper
hotkeys or OEM driver (for example, acpi_toshiba(4)) must be used instead.
BSD
November 8, 2004 BSD