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Tasklist

FS#37030 - Wrongly detecting my computer

Attached to Project: Arch Linux
Opened by Alex Chan (alex_cch4) - Monday, 23 September 2013, 09:07 GMT
Last edited by Jan de Groot (JGC) - Friday, 27 September 2013, 14:26 GMT
Task Type Bug Report
Category System
Status Closed
Assigned To No-one
Architecture x86_64
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
I am using DESKTOP COMPUTER with Asus Z87-A motherboard, that is the latest motherboard, and NVIDIA GTX650. However, when I list /sys/class/backlight, there is only "eeepc-wmi" folder, but "eeepc-wmi" means I am using Asus Eee PC, that is NOTEBOOK. The main reason of this difference will highly be the motherboard is too new that the system cannot detect.

This wrong detection makes me not be able to control brightness of nvidia.

Additional info:
* package version(s)
* config and/or log files etc.

Archlinux version: 2013.09.01
Kernel Version: 3.10.10

Steps to reproduce:
ls /sys/class/backlight
This task depends upon

Closed by  Jan de Groot (JGC)
Friday, 27 September 2013, 14:26 GMT
Reason for closing:  Not a bug
Additional comments about closing:  Desktop systems with Nvidia cards likely don't have displays connected through LVDS and so don't have software backlight control.
Comment by Allan McRae (Allan) - Monday, 23 September 2013, 14:00 GMT
If is fix with the latest kernel in [core] - 3.11.1?
Comment by Jan de Groot (JGC) - Monday, 23 September 2013, 16:01 GMT
I don't even think backlight control applies to your desktop system. Do you have an LVDS panel attached to your desktop system?

Also, eeepc-wmi is just a driver for various ACPI devices which were initially found on Asus EEEPC models. Asus seems to include the same ACPI interfaces on their desktop boards, probably for some hotkey stuff or their overclocking/monitoring utilities.

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