[Bug 1646537] Re: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100%
** Changed in: linux (Ubuntu Vivid) Status: In Progress => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1646537 Title: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100% To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1646537/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1646537] Re: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100%
Found another machine and restored the factory image, but still can't reproduce this issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1646537 Title: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100% To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1646537/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1646537] Re: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100%
I got the same machine and restored the system to factory image. After doing some check and write some intel reg value for testing, then I can't reproduce this issue any more, even do a cold boot or restore the image again. BTW, the patched kernel on #4 seems doesn't help. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1646537 Title: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100% To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1646537/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1646537] Re: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100%
The 2 i915 patches can't be backported to 3.19 kernel, so I use another way to archive the same function. The test kernel could be found here, I'll try to see if we could find a machine here to verify it. http://people.canonical.com/~acelan/bugs/lp1646537/ ** Changed in: linux (Ubuntu Vivid) Status: New => In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1646537 Title: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100% To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1646537/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1646537] Re: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100%
** Changed in: linux (Ubuntu Vivid) Assignee: (unassigned) => AceLan Kao (acelankao) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1646537 Title: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100% To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1646537/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1646537] Re: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100%
This is actually a kernel bug where the PWM isn't saved. It affects the specific display type in this machine. It's been fixed upstream already, and was brought into Ubuntu 16.04 (See SRU https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1625932). The Precision 5510 however ships with Ubuntu 14.04 + vivid HWE stack. The vivid HWE stack does not contain the fix, which is why this issue is happening. ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Also affects: xorg (Ubuntu Xenial) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Xenial) Importance: Undecided Status: New ** Also affects: xorg (Ubuntu Vivid) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Vivid) Importance: Undecided Status: New ** Changed in: xorg (Ubuntu Xenial) Status: New => Invalid ** Changed in: xorg (Ubuntu Vivid) Status: New => Incomplete ** Changed in: xorg (Ubuntu Vivid) Status: Incomplete => Invalid ** Changed in: xorg (Ubuntu) Status: Confirmed => Invalid ** Changed in: linux (Ubuntu Xenial) Status: New => Fix Released ** Changed in: linux (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1646537 Title: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100% To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1646537/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1646537] Re: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100%
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: xorg (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1646537 Title: Backlight sometimes fails to resume from suspend & screen brightness sometimes will not dim below 100% To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1646537/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
