Control: tag -1 moreinfo On Wed, 2013-08-14 at 00:52 +0200, Carlo Marchiori wrote: > Package: src:linux > Version: 3.9.8-1 > Followup-For: Bug #625211 > > Dear Maintainer, > > there still problems related to backlight. At first I could not control it at > all. Then, following forums and wikis on the net i tries to pass the > acpi_backlight=vendor parameter to the kernel, and know it work... a little > bit. > > What works is that all methods, the keyboard special keys, xbacklight, gnome- > control-center, all udpate the same file, in my case > /sys/class/backlight/samsung/brightness. > > But. First that file is reset to the maximum value at every restart. I worked > around this by echoing something into it in /etc/rc.local. > > Second, and worst, when I change the file value at runtime (by any of the above > methods), the value is applied... sometimes. I mean, I keep changing the value > and once in while the brightness changes, after 2, 5, 10 seconds, and I have to > be lucky that it happens at the right brightness. If you just change the value > without keeping trying, the value is not usually applied. [...] > ** Tainted: PO (4097) > * Proprietary module has been loaded. > * Out-of-tree module has been loaded. [...] > fglrx(PO) [...] Does it work if you use radeon instead of fglrx? Ben. -- Ben Hutchings Any smoothly functioning technology is indistinguishable from a rigged demo.
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