Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> writes: > On Sat, 14 Nov 2009, Ferenc Wagner wrote: >> Henrique de Moraes Holschuh <hmh@xxxxxxxxxx> writes: >>> On Sat, 14 Nov 2009, Ferenc Wagner wrote: >>>> thinkpad_acpi: ThinkPad BIOS 1WET90WW (2.10 ), EC 1VHT28WW-1.04 >>>> thinkpad_acpi: IBM ThinkPad R50e, model 1834S5G >>> >>> ... >>> >>>> Actually, this is the only mode that does NOT work; both 1 and 3 work >>>> instead. Hope it's useful. > > Well, I am surprised. You have an Intel embedded GPU, and the R50e would > be the very first ThinkPad I've ever heard about that does EC control of > backlight brightness with Intel Graphics. > > I will have to ask you to do some extra testing, to make sure there is > nothing in userspace falsifying your test results. > > Please go to single user text mode, and stop udev. At that point, you > should have only kernel threads, init, su/sulogin/bash running, which you > can verify using "ps auxwww". > > unload and reload thinkpad-acpi with the various brightness_mode > possibilites, and check if you can correctly read and set display brightness > through /proc/acpi/ibm/brightness. > > Does that test confirm that modes 1 and 3 work on the R50e, and mode 2 does > not work on the R50e ? I checked this from initramfs (break=modules, if you are familiar with the Debian convention). Apart from busybox, only kernel threads were running. Yes, modes 1 and 3 worked, 2 did not. This may be an unusual model, I'm having problems with suspend, hibernate, and sometimes even reboot... Being "e"conomic takes its taxes, I guess. >> I'm somewhat surprised that the current output of acpidump differs >> from what's attached to >> http://bugs.freedesktop.org/show_bug.cgi?id=22126, does that depend >> on the time of the boot, or what? > > The two acpidumps show that you did a BIOS update, from version 2.00 to > 2.10, you probably forgot that detail :-) Hrm, I'd have sworn I did that before the dump. Bleh. >> > If you feel it would be useful to have the read-only parameters displayed >> > there, I can update the module to have them show up. >> >> Well, it would have been convenient yesterday, but in the end I found >> what I was after in dmesg (current brightness_mode). But I guess > > Ok, it is easy to fix this. It will be in the next batch of low-urgency > changes. Great! -- Thanks, Feri. ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
