No Screen Backlight Control; Notebooks (Vaio, Macbook, HP/Compaq, Samsung, Zepto et al.) with Nvidia Geforce8/Geforce9/Quadro series graphics
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HAL |
Invalid
|
Undecided
|
Unassigned | ||
acpi-support (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
hal (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
hotkey-setup (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
nvclock (Ubuntu) |
Fix Released
|
Undecided
|
andy langer | ||
nvidia-graphics-drivers-180 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Bug Description
Using Ubuntu on laptops with Nvidia Geforce8/
On various laptops from Sony, HP, Samsung and others there is no way to control backlight brightness. In case of Sony e.g. on Vaios with 8-series adapters, e.g.
nVidia Corporation GeForce 8400M GS
nVidia Corporation GeForce 8600M GT (rev a1)
The registers have been found (kudos to mikes!) and incorporated into
nvclock, which you can check out by anonymous cvs and install:
]$ sudo apt-get install cvs
]$ cvs -d:pserver:<email address hidden>
]$ cvs -z3 -d:pserver:<email address hidden>
]$ cd nvclock
]$ ./autogen.sh
]$ ./configure
]$ make
]$ sudo make install
To test, make sure you are using nVidia's proprietary driver, then:
]$ sudo nvclock -S 100
]$ sudo nvclock -S 15
]$ sudo nvclock -S +10
So far mikes' registers have been found to work on:
Apple laptops
{
Macbook 5,1 Aluminum 13.3" (Geforce 9400M)
}
HP/Compaq laptops
{
8510W (Quadro FX 570M, MXM)
8710P (Quadro NVS 320M, MXM)
}
Samsung laptops:
{
Q210 (Geforce 9200M)
Q310 (Geforce 9200M)
R510 (Geforce 9200M)
}
Sony laptops:
{
8400M GS:
VGN SZ650N, SZ61MN/B, SZ730E, SZ750N, SZ71MN/B, SZ71E SZ95S, SZ6RMN
8400M GT:
VGN FZ38M, FZ31M, FZ11Z, NR31, AR41E, FZ11S, FZ290, FZ250AE, FZ21E, FZ21M, FZ21S, FZ470E, FZ340E, FZ190N, FZ18M, FZ31E, FZ18E, FZ260E NR21Z, NR38S, NR21S,FZ280E
8600M GS:
VGN FZ31Z, FZ21Z, FZ31S
8600M GT:
VGN AR51SU, AR71S
}
Zepto laptops
{
Geforce 9600GT based laptops using MXM cards
}
Add your model to the list by clicking on the "Update description / tags" link, NOT by asking in a bug comment for someone else to do it.
To get hotkeys to work, follow the instructions in this comment:
https:/
or install the package at :
https:/
Dual-adapter models (SZ6 among others) can get backlight control with the Intel adapter using xbacklight, and can get hotkey functionality as per bug #173652.
Related branches
Changed in linux: | |
status: | Incomplete → New |
description: | updated |
description: | updated |
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description: | updated |
description: | updated |
description: | updated |
description: | updated |
description: | updated |
description: | updated |
Changed in hal: | |
status: | New → Invalid |
description: | updated |
description: | updated |
description: | updated |
description: | updated |
description: | updated |
description: | updated |
description: | updated |
Changed in hotkey-setup: | |
status: | In Progress → Invalid |
Changed in hal: | |
status: | New → Invalid |
Changed in nvidia-graphics-drivers-177: | |
status: | In Progress → New |
Changed in linux: | |
status: | In Progress → New |
description: | updated |
description: | updated |
Changed in linux: | |
status: | New → Confirmed |
Changed in nvclock: | |
status: | New → Confirmed |
Changed in nvidia-graphics-drivers-180: | |
status: | New → Confirmed |
description: | updated |
description: | updated |
Changed in nvclock: | |
status: | Confirmed → In Progress |
Changed in nvclock (Ubuntu): | |
assignee: | Steve Langasek (vorlon) → andy langer (lian240409) |
If it still doesn't work try sudo modprobe sony-acpi . Sometimes the module isn't loaded. Maybe this is your problem.