[Bug 286599] Re: Changing brightness does not work on HP 6530b
http://www.freedesktop.org/wiki/Software/hal/ ** Changed in: hal (Ubuntu) Status: New = Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/286599 Title: Changing brightness does not work on HP 6530b To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/hal/+bug/286599/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 286599] Re: Changing brightness does not work on HP 6530b
can't confirm this on 9.10 as well as 10.04 - works as it should on my 6530b -- Changing brightness does not work on HP 6530b https://bugs.launchpad.net/bugs/286599 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 286599] Re: Changing brightness does not work on HP 6530b
I have an Acer Aspire 3935 with exactly the same hardware. And I also have the same problems. For now, I found out that writing a brightness value to /sys/class/backlight/acpi_video0/brightness saves the brightness (you can see it in actual_brightness). It is even saved until the next reboot - when I set the brightness to 0 and reboot, the display is very dark when BIOS starts. While BIOS and GRUB are running, I can change the brightness with Fn keys. But as soon as Linux has initialised ACPI, the keys have no longer any function. When I turn off ACPI (acpi=off in kernel command line), brightness control works but of course everything requiring ACPI (like CPUfreq control or battery status) works no longer! Best regards, Freddy -- Changing brightness does not work on HP 6530b https://bugs.launchpad.net/bugs/286599 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 286599] Re: Changing brightness does not work on HP 6530b
Another fact is that before starting Ubuntu everything works fine. I can change brightness with the Fn keys in BIOS or in GRUB, but not anymore after that. Can this help? Is there a way to let go a command through Linux and let the system behind do this job or something like that? -- Changing brightness does not work on HP 6530b https://bugs.launchpad.net/bugs/286599 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 286599] Re: Changing brightness does not work on HP 6530b
I have found this issue: https://bugs.launchpad.net/ubuntu/+source/hal/+bug/82188. I tried to it this way, too. After echoing a new value into the brightness file it seems to be parsed correctly and it has the same content like before with the new current value. But the brightness of the display doesn't change at all. Has anyone an idea? -- Changing brightness does not work on HP 6530b https://bugs.launchpad.net/bugs/286599 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
