Messages in this thread | | | From | Yu Luming <> | Subject | Re: [PATCH 2.6.18-mm2] acpi: add backlight support to the sony_acpi driver | Date | Thu, 12 Oct 2006 00:31:13 +0800 |
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On Wednesday 11 October 2006 16:04, Ismail Donmez wrote: > 11 Eki 2006 Çar 10:04 tarihinde, Matthew Garrett şunları yazmıştı: > > On Wed, Oct 11, 2006 at 08:59:04AM +0200, Arjan van de Ven wrote: > > > it'd also be nice if the linux-ready firmware developer kit had a test > > > for this, so that we can offer 1) a way to test this to the bios guys > > > and 2) encourage adding/note the lack easily > > > > Sure. Reading /proc/acpi/video/*/*/info should tell you whether a device > > is an LCD or not. > > On my Sony Vaio with latest linux-2.6 git kernel it says its a CRT : > > [~]> cat /proc/acpi/video/*/*/info > device_id: 0x0100 > type: CRT > known by bios: no > device_id: 0x0320 > type: UNKNOWN > known by bios: no > device_id: 0x0410 > type: UNKNOWN > known by bios: no > device_id: 0x0240 > type: UNKNOWN > known by bios: no > device_id: 0x0100 > type: CRT > known by bios: no > device_id: 0x0111 > type: UNKNOWN > known by bios: no > device_id: 0x0118 > type: UNKNOWN > known by bios: no > device_id: 0x0200 > type: TVOUT > known by bios: no > > So I don't think its reliable. Please open a bug on bugzilla.kernel.org, and post acpidump output.
Thanks, Luming
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