| Summary: | Keyboard backlight support | ||
|---|---|---|---|
| Product: | [Frameworks and Libraries] solid | Reporter: | Corentin Chary <corentin.chary> |
| Component: | powermanagement | Assignee: | Dario Freddi <drf> |
| Status: | RESOLVED FIXED | ||
| Severity: | wishlist | CC: | adaptee, alarmfifa, and, kde, mensoif_gerard, oleksii.zagorskyi, poletti.marco, rudd-o, wporta |
| Priority: | NOR | ||
| Version: | unspecified | ||
| Target Milestone: | --- | ||
| Platform: | unspecified | ||
| OS: | Linux | ||
| Latest Commit: | http://commits.kde.org/kde-workspace/d9f08307177fd56d98b58dfe87cbea062a1516e0 | Version Fixed In: | 4.11 |
Thanks for the info, will get to that as soon as I have a minute and provide you with a patch against 4.8 to test. Just found that upower supports keyboard backlight: http://cgit.freedesktop.org/upower/tree/src/org.freedesktop.UPower.KbdBacklight.xml http://cgit.freedesktop.org/upower/tree/src/up-kbd-backlight.c Should be a lot easier with that already done :). Note that gnome-power-manager use that to control keyboard backlight too. Dario, any news on that? Thanks! Any news here? I have the same problem. I confirm that upower works perfectly and that xev recognizes the keyboard backlight keys. Any news here ? I have an Asus G74SX-DH71 and the Keyboard Brightness Up/Down don't work. The Screen Brightness Up/Down do work but not the Keyboard lights. Any help on getting this working? Thanks. The simpliest way with KDE is probably to use xvindkey + home-made scripts controling /sys/class/led/asus::kbd_backlight or upower. Thanks for your response. Any idea on how this "home-made scripts" should look like? In Gnome3 these key works just fine. Do you think that having gnome-settings-daemon stared automatically could help? *** This bug has been confirmed by popular vote. *** I have an Asus UX32VD, kernel 3.5.3, KDE 4.8.4 Keyboard Brightness Up/Down (Fn+F4, Fn+F3) don't work under KDE but they work under Gnome3. I can successfully change it by sending 0-3: # echo 3 > /sys/class/leds/asus\:\:kbd_backlight/brightness Would be very nice to have it working natively under KDE. I would be interested in contributing some code to fix this. Can some developer give me a few pointers to get started? I already have C++ and Qt coding experience, but no KDE experience. I've just uploaded a patch for this to reviewboard, see https://git.reviewboard.kde.org/r/108232/ Let's hope it will go into 4.11. Note that his patch adds support for the keyboard backlight control keys, it neither adds any GUI to powerdevil and system settings nor does it add keyboard backlight support for power profiles. This review has been submitted with commit d9f08307177fd56d98b58dfe87cbea062a1516e0 by Michael Zanetti to branch master. |
Version: unspecified (using Devel) OS: Linux More and more laptop are comming with keyboard backlight and currently KDE doesn't handle keyboard backlight at all. Xorg have the following keys: #define XF86XK_KbdLightOnOff 0x1008FF04 #define XF86XK_KbdBrightnessUp 0x1008FF05 #define XF86XK_KbdBrightnessDown 0x1008FF06 And those are mapped in Qt: { Qt::Key_KeyboardLightOnOff, XF86XK_KbdLightOnOff }, { Qt::Key_KeyboardBrightnessUp, XF86XK_KbdBrightnessUp }, { Qt::Key_KeyboardBrightnessDown, XF86XK_KbdBrightnessDown }, On Linux, keyboard backlight is exposed as a led (/sys/class/led) with a name ending with ::kbd_backlight and the ABI is described here: https://github.com/torvalds/linux/blob/master/Documentation/ABI/testing/sysfs-class-led Currently, the following drivers export such a backlight: asus-wmi, asus-laptop, samsung-laptop (not merged yet, but probably in 3.3), applesmc. So if you have a samsung, asus or apple laptop with a keyboard backlight, it should be supported (if not, please ping me). The code should be easy to write using the existing code for brightness (except that xrandr can't be used here, but upower/backlighthelper handle /sys/class/backlight/ directly). Unfortunatly I don't have enought time to do it alone (writting the Linux drivers already eats a lot of my free time), but I've got two laptops with keyboard backlight and I'll be happy to test anything. Reproducible: Didn't try Steps to Reproduce: - Press Keyboard Brightness Up/Down Actual Results: - Nothing Expected Results: - The keyboard brightness is changed - A nice OSD popup and show the current level