Hello,
I just wanted to report possible issues related to the new backlight
control implemented in commit 7751ab8e600f26e10c2ba12a92d48a4852a51da8
[sony-laptop: implement new backlight control method]. I and Javier
Achirica have been using it for a while on different notebook models and
agree that values close to 0 are far too dark to be useful, while 0
means totally off for both. Moreover flickering has been reported with
CCFL LCDs (still present on a few models, such as the Vaio F) by another
tester.
In fact, with these Vaios, Windows never goes below a certain model
specific backlight lower bound, provided along with the ALS capability.
However, this requires further code not yet implemented (or the ALS
support already available but not yet included). Please consider
correcting or delaying that patch.
Thanks.
Marco Chiappero
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