Package: linux-2.6 Followup-For: Bug #671116 Good news. After applying the latest BIOS update from HP, setting the LCD backlight started to work through the sysfs interface. I had to remove the acpi_backlight kernel boot parameter and then it started to work. "echo 10 > /sys/class/backlight/acpi_video0/brightness" changes the LCD brightness.
But the keyboard shortcuts still don't work. acpi_listen gives me the following when pressing Fn+F7 (brightnesdown) and Fn+F8 (brightnessup): # acpi_listen video/brightnessup BRTUP 00000086 00000000 K video/brightnessdown BRTDN 00000087 00000000 K It looks like some events need to be added in acpi-support, which should transfer this bug to acpi-support. But there is another way perhaps?... For anyone having this problem, here is how to do the BIOS update: - the URL from where to download the BIOS updates is the following: http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=3935147&prodTypeId=321957&prodSeriesId=3935146&swLang=13&taskId=135&swEnvOID=2095 - first download and install "ROM Image for HP Notebook System BIOS (68GPI) Remote ROM Flash - SSM Compliant" (for F.10) - then download and install "HP Notebook System BIOS Update" (for F.20) - I had a Windows XP on a separate partition, so it was easy; if you don't have a Windows installation, I think you'll need to use the FreeDOS bootable media that HP has available -- System Information: Debian Release: wheezy/sid APT prefers testing APT policy: (500, 'testing') Architecture: i386 (i686) Kernel: Linux 3.2.0-2-686-pae (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120502015930.10219.29529.reportbug@zero
