Hi all, I'm new to this list, so hello to everyone out there.
I've just installed Debian on my Powerbook G3 Wallstret/233 with the terrible 800x600 passive LCD screen. (Yes, I know it's a piece of junk, but it was practically free...) I've got pretty much everything working perfectly at this point, using Ben Herrenschmidt's excellent 2.4.21 kernel (rsync from 8/16/03) except for one little problem - the screen does not restore from blanking properly. Using either fblevel from pmud-utils or the pbbuttonsd I can adjust the backlight brightness fine. However, once I go to fblevel 0 (or set the brightness to 0 using pbbuttonsd), the screen goes blank as expected. However, once I go back to fblevel 1, the screen becomes white. I can just about make out (by looking at an angle) that the screen is still working (at least I can still see the windows on my X display), but there is no way to get the display back to normal without shutting down and rebooting. The system is otherwise functioning correctly and adjusting the fblevel still changes the brightness. This is mainly a problem because it happens when the machine returns from sleep mode, making suspend unusable. I have an ATI Mach64 LT-G chipset using the atyfb console driver. I've had a look at the atyfbcon_blank function in atyfb_base.c, but I'm not sure if that's where the problem is. Has anyone seen this problem before? Any ideas where to start to fix it? thanks, John.
