On Thu, 16 Aug 2001, Kin Chung wrote: > Thanks for the tip. Actually it turns out to be caused by > not having aty128fb activated (the 2.4.4 kernel version was > badly behaved, it seems, for just about every imac-like machine > including the ibook) as I discovered after downloading and > compiling the 2.4.6 kernel (the 2.4.6 aty128fb works brilliantly).
I haven't had this problem, but I've found that using the 'backlight' command (from the powerpc-utils package) with the '-a' switch often doesn't work (won't control the backlight properly), and I have had it hard-lock the system. Using the '-q' switch instead doesn't do this - it controls the backlight level correctly, and I haven't had it lock the laptop. An 'strace' indicates that with the '-a' switch, it opens /dev/adb, and tries to use it to control the backlight (getting EINVAL on write, and EIO on read), and doesn't try anything else, whereas with the '-q' switch, it tries /dev/adb, then tries /dev/pmu (which, as I said, works right). Just thought that since the subject had arisen, this was worth mentioning. Derrik Pates | Sysadmin, Douglas School | #linuxOS on EFnet [EMAIL PROTECTED] | District (dsdk12.net) | #linuxOS on OPN
