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Old 12-01-2008, 02:06 PM
Tim Gardner
Default SRU: LP#257827 -- acpi brightness control

Andy Whitcroft wrote:
> On Fri, Nov 21, 2008 at 05:16:10PM +0000, Andy Whitcroft wrote:
>> On Thu, Nov 20, 2008 at 11:22:55AM -0700, Tim Gardner wrote:
>>> Andy Whitcroft wrote:
>>>> This series represents a backport of a change to the ACPI backlight
>>>> support. This change was original done to sort out brightness control
>>>> problems for a number of different laptop models triggered by non-existant
>>>> devices being created (as reported on this bug). These changes also
>>>> are reported to fix boot crashes on a number of Samsung laptops (as
>>>> reported on LP#146692). All of these changes are direct back ports from
>>>> mainline, no changes were needed to apply them. They are all upstream
>>>> as of v2.6.28-rc5.
>>>> I have built test kernels with these applied and a number of community
>>>> members have tested these and confirm that they do indeed allow those
>>>> laptops to boot and brightness control is improved there.
>>>> Proposing these for SRU to Intrepid.
>>>> -apw
>>> Disregard previous transmission wrt to '[PATCH 01/10] ACPI: video:
>>> Ignore devices that aren't present in hardware'
>>> Provisional ACK pending test results.
>> I have rebased these onto the top of the 2.6.27-10.20 and pushed those
>> up for any intrested testers. So far we have three positive tests
>> results from the boot crashing Samsung laptops, with some reports of
>> improved brightness handling from them. That seems pretty positive.
>> Will see if anyone from the primary report gives us any feedback this
>> weekend.
> We have had little further feedback. As this fixes a number of
> non-booting laptops we should probabally accept this for Intrepid. If
> you concur I can push this.
> -apw


Tim Gardner tim.gardner@canonical.com

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