backlight control not working

[Neal Becker]

Hopefully will be resolved:

https://bugs.kde.org/show_bug.cgi?id=314250

Neal Becker wrote:

> Rex Dieter wrote:
> 
>> On 02/18/2013 02:26 PM, Neal Becker wrote:
>>> Neal Becker wrote:
>>>
>>>> Neal Becker wrote:
>>>>
>>>>> Also, I created a new test user.  He also cannot control screen
>>>>> brightness, confirming it's not due to any old settings in my own account.
>>>>>
>>>>
>>>> It looks like a lot of people have seen similar issues, here is an example:
>>>>
>>>> https://bbs.archlinux.org/viewtopic.php?pid=1229185
>>>>
>>>>
>>>
>>> Hey guess what?  If I set kdm as displaymanager, problem is fixed!
>> 
>> wierd.  so, what were you using previously?
>> 
>> -- rex
>> 
> Before I reinstalled, I had been using kdm, and I believe it worked fine. 
> After
> reinstalling, I had the default gdm, and it didn't work.  Then I switch to
> kdm,
> and now it's working again.  I didn't try to repeat to confirm it, but I'm
> pretty sure that's it.
> 
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