On Thu, Jun 14, 2012 at 07:33:05PM +0200, Karol Babioch wrote: > Hi, > > I'm a user of the Sony VAIO VPCS12C5E and as such have always struggled > with the Linux support of my laptop basically forever. Until now I've > used the patch provided here [1], which worked quite well for some time. > However since kernel version 3.3 I couldn't change the brightness of my > screen anymore. This is not an issue with the platform driver but with the acpi video driver. You can boot with acpi_backlight=vendor and get brightness control back but the issue with acpi_video remains. ... > So, I've uploaded a dmesg log when loading the module with the debug > option enabled and trying to change the brightness with the fn keys here > [2]. Maybe this is already enough to nail the issue down. Otherwise just > let me know what you would like to have. please provide your laptop's DSDT table as well. > [1] https://code.google.com/p/vaio-f11-linux/wiki/KernelSupport > [2] http://pastebin.com/GRrtp024 Thanks -- mattia :wq! -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
