On 01/09/2014 05:05 PM, joeyli wrote: > 於 四,2014-01-09 於 09:11 +0100,Oleksij Rempel 提到: >> Am 09.01.2014 08:06, schrieb joeyli: >>> 於 一,2014-01-06 於 17:20 +0100,Oleksij Rempel 提到: >>>>> I think Aaron's patches can fix it on E1-572. Let's wait until v3.13 >>>>> version released then look at maybe someone report issue again. >>>>> >>>>> Very appreciate for your patch. >>>>> >>>>> Joey Lee >>>>> >>>> >>>> Hi Joey, >>>> >>>> i have access to this hardware for next two weeks. Theoretically this >>>> kernel should have patches you was talking about: >>>> http://kernel.ubuntu.com/~kernel-ppa/mainline/daily/2014-01-06-trusty/ >>>> >>>> it works with video.use_native_backlight=1. >>>> >>>> If you need more testing, you have two weeks ;) >>>> >>>> -- >>>> Regards, >>>> Oleksij >>>> >>> >>> Thanks for your testing, then I think just use >>> video.use_native_backlight to fix issue on Aspire E1-572. Don't need add >>> quirk to acer-wmi driver. >> >> You mean editing grub and adding kernel option? > > Good point! > > Looks we need add Aspire E1-572 to the video_dmi_table in > drivers/acpi/video.c, like: > http://lists.freedesktop.org/archives/dri-devel/2013-November/049427.html > > But this patch doesn't in mainline. > > Do you want send a patch to Aaron Lu for add Aspire E1-572 to list? or > maybe we can ping Aaron to direct add it. Since it is shipped with Win8, I think the following patch should take care of it: [PATCH] ACPI / video: Use native backlight control interface by default http://www.spinics.net/lists/linux-acpi/msg47755.html Last time Daniel seems to agree to merge it for test purpose, but I didn't see it get merged somewhere yet. Thanks, Aaron -- 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