My brightness setting is not working properly. When unplugged, the brightness stays at 50% no matter how much I tried to increase it. The brightness bar keeps resetting itself at 50%. When the system is plugged into an outlet, it gets brighter but the bar always shows 50%. What's wrong with it?
I tried changing the BIOS setting but it didn't help.
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Use the search. This question has been answered three times in the last five days. Hint: you need to get into the BIOS.
M1330 brightness problem
Discussion in 'Dell XPS and Studio XPS' started by wdro, Aug 29, 2008.