[Bug 376924] Re: Random reaction to brightness hotkeys
** Changed in: acpi Importance: Unknown = Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/376924 Title: Random reaction to brightness hotkeys -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 376924] Re: Random reaction to brightness hotkeys
** Changed in: acpi Status: Incomplete = Fix Released -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
** Changed in: gnome-power-manager (Ubuntu) Status: Confirmed = Invalid ** Changed in: acpi (Ubuntu) Status: Confirmed = Triaged -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
Oh, I haven't applied later patch. I will do that and post the result -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
Thanks Dmitriy, can you post your comments at http://bugzilla.kernel.org/show_bug.cgi?id=13511? The patch and fix work is going on there, and it would probably be best if we directly work with them on that site. After applying the patch, what was the output of: cat /sys/class/backlight/acpi_video0/device/path Could you post the result of that to the kernel bugzilla address? -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
Hmm... This should be the reason, but patched DSDT didn't fix the problem. Or kernel refused to load my DSDT. Dammit! # CONFIG_ACPI_CUSTOM_DSDT is not set CONFIG_ACPI_CUSTOM_DSDT_FILE= Bug #246222 reported for Intrepid alpha 3, marked as fixed, is still there! Config from 2.6.28 contains one more line: CONFIG_ACPI_CUSTOM_DSDT_INITRD=y -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
Kernel refused to load my DSDT: # CONFIG_ACPI_CUSTOM_DSDT is not set CONFIG_ACPI_CUSTOM_DSDT_FILE= Bug #246222 reported for Intrepid alpha 3 and marked as fixed is still there! Default kernel, 2.6.28 has one more line: CONFIG_ACPI_CUSTOM_DSDT_INITRD=y -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
sorry for the extra email, upstream updated the patch: http://bugzilla.kernel.org/attachment.cgi?id=21978 use this instead of the one from my comment on 6/16 -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
Just disassembled laptop's DSDT, there a 3 device LCDD descriptors. All have
method _BCL.
First 2 instances:
Device (LCDD)
{
...
Method (_BCL, 0, NotSerialized)
{
Return (Package (0x10)
{
0x0F,
0x0E,
0x0D,
0x0C,
0x0B,
0x0A,
0x09,
0x08,
0x07,
0x06,
0x05,
0x04,
0x03,
0x02,
One,
Zero
})
}
...
}
And here is third one:
Device (LCDD)
{
...
Method (_BCL, 0, NotSerialized)
{
Return (Package (0x09)
{
0x08,
0x07,
0x06,
0x05,
0x04,
0x03,
0x02,
One,
Zero
})
}
...
}
As far as I understand, this causes backlight control problems and
modifying first 2 instances to be like 3d one will fix problem without
kernel modification (by overriding DSDT in initrd)?
--
Random reaction to brightness hotkeys
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[Bug 376924] Re: Random reaction to brightness hotkeys
** Changed in: acpi Status: Confirmed = Incomplete -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
Relaying a message from the upstream developers: http://bugzilla.kernel.org/show_bug.cgi?id=13511#c4 patch: create symbol link from backlight sys device to ACPI video device you have only one backlight sysfs I/F, i.e. /sys/class/backlight/acpi_video0, right? please apply this patch [1], and get the output of cat /sys/class/backlight/acpi_video0/device/path. this will help us to know which ACPI video device is used. [1] http://bugzilla.kernel.org/attachment.cgi?id=21952 -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
@phcoder: The linux-acpi developers have asked that you resend your patch to the linux-acpi mailing list again [1]. When you do, reference linux kernel bug #13511. Thanks for your help and fixing this bug for many HP laptop owners. [1] http://bugzilla.kernel.org/show_bug.cgi?id=13511#c2 -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
There are several other bug reprots with similar symptoms that are now trying this patch. Dmitriy Geels just added two dupes to this report. He has down some debugging at Bug #350912, I just wanted to make sure his info is carried over (there are more logs and files there, but the following info confirms the behavior the patch in this report fixes): This laptop has 3 backlight control buttons: dim/bright and 'eco' (which should put laptop into economy mode). Now, how buttons work (I press buttons not 1 time per second or less): d...@dmig-laptop:~$ watch -n 1 cat /proc/acpi/video/VGA1/LCDD/brightness Every 1,0s: cat /proc/acpi/video/VGA1/LCDD/brightness Sun Mar 29 16:08:54 2009 levels: 0 1 2 3 4 5 6 current: 5 dim button: no changes, gnome brightness popup shows zero level brightness bright button: 1st press levels: 0 1 2 3 4 5 6 current: 1 2nd press levels: 0 1 2 3 4 5 6 current: 4 3rd presslevels: 0 1 2 3 4 5 6 current: 1 4th press levels: 0 1 2 3 4 5 6 current: 4 eco button: eco off: levels: 0 1 2 3 4 5 6 current: 4 eco on: no change eco off: backlight blinks twice, then: levels: 0 1 2 3 4 5 6 current: 2 eco on: no change eco off: screen blinks 3 times, then level rests on 2 -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
Applied this patch to .30 kernel -- it helped! Brightness control works as expected now. But gnome-brightness-applet is often loosing dbus connection to g-p-m with .30 kernel. -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
Thank you for your bug report. This bug has been reported to the developers of the software. You can track it and make comments at: http://bugzilla.kernel.org/show_bug.cgi?id=13511 ** Bug watch added: Linux Kernel Bug Tracker #13511 http://bugzilla.kernel.org/show_bug.cgi?id=13511 ** Also affects: acpi via http://bugzilla.kernel.org/show_bug.cgi?id=13511 Importance: Unknown Status: Unknown -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
** Changed in: acpi Status: Unknown = Confirmed -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
Thank you for your report and for finding and testing that patch! I'm marking confirmed in both gnome-power-manager and listing as an ACPI bug. ** Changed in: gnome-power-manager (Ubuntu) Status: New = Confirmed ** Also affects: acpi (Ubuntu) Importance: Undecided Status: New ** Changed in: acpi (Ubuntu) Status: New = Confirmed -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
On my laptop I traced it back to kernel and here is the fix: http://marc.info/?l=linux-acpim=124456088526538w=2 -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
** Attachment added: gpm.txt http://launchpadlibrarian.net/26761676/gpm.txt -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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 376924] Re: Random reaction to brightness hotkeys
I don't know if it's related but if the laptop stays idle it will change brightness for a second and then go back to original brightness. Same when I touch the touchpad after idle time Here is lspci ** Attachment added: lspci.diff http://launchpadlibrarian.net/26762111/lspci.diff -- Random reaction to brightness hotkeys https://bugs.launchpad.net/bugs/376924 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
