[Bug 1007765] Re: brightness adjusting crashes system
This is happening on my Lenovo T510 which uses Nvidia so I don't think the video driver has anything to do with it. This bug (for me) is also the worst kind in that it's intermittent. Tonight, the system locked up when I forgot about this problem and it hosed a partition that was in the middle of being resized. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
The problem persists in 14.04. The solution in comment #96 still does not resolve the issue for me. I can confirm Rahul's observation in #116. Adjusting the brightness before the kernel loads works. Adjusting after that freezes the system. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
one workaround i been using for quite sometime now, is to decrease the backlight before the kernel boots. i.e. the system waits on grub bootloader for 5-10 seconds for any distribution i used. dimming the display then bypasses 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/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I believe I have successfully solved the bug now by reading all the comments again and found a solution in #96. I added echo 0 /proc/sys/kernel/nmi_watchdog before exit 0 in the file etc/rc.local. I have used the system a few hours/days/re-starts/hibernates since and no bug has occured by now. My working configuration is: - Ubuntu Studio 12.04 fresh install - Dell Studio 1558 with ATI Radeon HD 4500. - Gnome Shell - Solution from comment #96 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Hey, is there any chance this is going to be resolved soon? My system (Ubuntu Studio 10.04) basically renders itself more and more useless everyday and I can't upgrade because of this bug. I tried - Ubuntu 12.04 - Linux Mint 13 and Linux Mint 15 (both Cinnamon) - Fedora 20 - Ubuntu Studio 12.04 - Debian 7 and this bug persists in every single one of them. I can't do anything but look how my system slowly perishes. Please somebody fix this bug so I can have a running system again. If there is anything I can do to help, please let me know. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
** Also affects: fedora Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Hello to you all! I am showing up here because I have the same issue. I found this thread this morning after blaming the hardware on my notebook for a year but rethinking this to be a software issue this morning. I will try out the solutions here to contribute on this this evening. Please, how are the actual informations on pinning down this issue to a subsystem? What I want to contribute at first is technical stuff. I have exactly the same issue on this constellation (all tried out in 2013): Dell Studio 1558 with BIOS A04 and A12, HD4500 ATI debian or archlinux installed several installed linux-3.1n.x versions several recent fglrx catalyst legacy drivers several recent open source radeon drivers Yes, no ubuntu launchpad issue at all! Yes, all the same crash but the pattern on screen after crash is different: fglrx is flashing a couple of chars in the pattern, radeon displays a mor simple pattern with no flashing chars. Kind Regards Konsti -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I've managed to get this bug solved! The answer is here: http://ubuntuforums.org/showthread.php?t=2181534p=12819813#post12819813 Create the file /usr/share/X11/xorg.conf.d/20-intel.conf with the following content: Section Device Identifier card0 Driver intel Option Backlight intel_backlight BusID PCI:0:2:0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I've managed to get this bug solved! The answer is here: http://ubuntuforums.org/showthread.php?t=2181534p=12819813#post12819813 Create the file /usr/share/X11/xorg.conf.d/20-intel.conf with the following content: Section Device Identifier card0 Driver intel Option Backlight intel_backlight BusID PCI:0:2:0 EndSection Log out to see if it works. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Unfortunately, the solution that worked for George does not work on my Lenovo ThinkPad W530, running Ubuntu 13.10. After trying to adjust brightness, I see the brightness graphic on the screen, and the system freezes immediately. This laptop has NVidia - Intel hybrid graphics, so the bug is likely not related to fglrx I'm not able to disable the virtualization options in BIOS, since those are necessary for running VirtualBox. That is necessary for the work I do, in the job where this laptop is used. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Dear George, I am quite sure, this does not fix the problem. I investigated this in deep now, let me elaborate on this. At first I forgot to mention, my system is entirely a 64bit one, may be this is importand. Secondly, I have only one AMD/ATI HD4500 card build into my notebook as a graphincs card. This is no intel, radeon or fglrx issue. But may be forcing intel interface reveals some stuff intel fixed in their code path. I got fluctuate_bl.sh to test this out from here: https://bugzilla.kernel.org/show_bug.cgi?id=57571 This script penetrates the /sys/class/backlight/acpi_backlight0/brightness interface with a interval which may be configured. It can be called penetrating another interface. My Kernel offers acpi_backlight0 (values 0..15) and radeon_bl0 (values 0..255). When I penetrate the acpi_backlight0 the system freezes almost immediately, penetrating radeon_bl0 lasts a bit longer to make the system freeze. What I learned is, adding a delay for example of 0.2s looks more stable on first sight but acpi interface lasts not much longer either, pentrating radeon_bl0 lasts going out to smoke a cigarette but will crash. Again, rdaeon_bl0 looks a bit more robust. The delay seems to be relevant for a statistic feeling. Changing with xorg.conf or kernel command line from acpi interface away to vendor one could look better but only on first sight! If I do echo 0 /proc/sys/kernel/nmi_watchdog Both tests are running for ages (0 delay!). SOLVED! I tested the acpi_backlight=vendor kernel command line. acpi_backlight0 vanishes and dell backlight appears under /sys/class/backlight. Despite of the fact there is no brightness interface under this new directory I can penetrate the interface with the fluctuate_bl.sh script, but only the backlight OSD appeears (running kde here) but the brightness does not change. Penetrating the still existing radeon_bl0 interface yields to the well known crash. Kind Regars Konsti -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I have Dell Integrated Graphics Card and don't understand what echo 0 /proc/sys/kernel/nmi_watchdogdoes. I'm really fed up with this bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I've read comment #96 and now I know what echo 0 /proc/sys/kernel/nmi_watchdog does. Still, it didn't work for me. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Adding acpi_backlight=legacy fixed it for me under Ubuntu 13.10. (Dell N5010, IntelHD) 'gksu gedit /etc/default/grub' add acpi_backlight=legacy to GRUB_CMDLINE_LINUX_DEFAULT=quiet splash line so it'll look like this: GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=legacy save and run sudo update-grub Restart. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Still no luck for me on Dell N5010, running Kubuntu 13.10: GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=legacy didn't work... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I fresh installed Ubuntu 13.10, so it was using free drivers by default. And it crashed when I tried to change brightness rapidly. So I think the bug is not present in fglrx-installer. Now I am using AMD drivers, but my brightness control doesn't work properly, it either increases or decreases after pressing the key many times, the progress bar in indicator is displayed correctly but brightness changes randomly. After echo 0 /proc/sys/kernel/nmi_watchdog, crash doesn't occur. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I never had this bug until yesterday. acpi_backlight=vendor and/or the echo 0 /proc/sys/kernel/nmi_watchdog solution didn't work for me. I couldn't install the latest mainline kernel, because of my restricted broadcom WiFi driver I'm depending on. Workaround for me was: Disable Virtualization Features of my Intel Core i7 in BIOS. I think I can live without virtualization features for some time. But in future I want to use VirtualBox, where these features are necessary. System: Thinkpad S531 Linux: Xubuntu 13.04 Kernel: 3.8.0-31 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1007765] Re: brightness adjusting crashes system
Hi, On Fri, Aug 23, 2013 at 04:09:46PM -, Aditya wrote: Hi, by different I mean that the system freezes in both the situations, with nmi_watchdog enabled and disabled, and this happens as soon as I soon as I change the brightness levels, and this is the reason I actually reached this bug report. Then, let's do some testing. Could you please do the following: - Boot the system with acpi_backlight=vendor - sudo echo 0 /proc/sys/kernel/nmi_watchdog - cat /proc/sys/kernel/nmi_watchdog (make sure the output is 0) I did this, as a result, the system is responsive for 10 - 15 seconds after brightness change. I am able to change brightness multiple times within this window. After this the system freezes. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Thanks Marwan for the detailed description of the bug. I just posted this as a fix for the users who were unable to change brightness, and I had no idea how deep the roots of this bug are. In my case, both acpi_video0 and acpi_video1 do not work, i.e. the brightness does not change and the system is functional. When I use acpi_backlight=vendor things are different even if I disable nmi_watchdog . Are there any tests that I run? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1007765] Re: brightness adjusting crashes system
On Fri, Aug 23, 2013 at 09:05:34AM -, Aditya wrote: Thanks Marwan for the detailed description of the bug. You're welcome. I just posted this as a fix for the users who were unable to change brightness, and I had no idea how deep the roots of this bug are. And, I don't blame you. I just took it as an oppurtunity for explaining the root cause of the problem in order to reduce the amount of trial-and-error for poeple experiencing the same problem. In my case, both acpi_video0 and acpi_video1 do not work, i.e. the brightness does not change and the system is functional. When I use acpi_backlight=vendor things are different even if I disable nmi_watchdog . But this thread is about the problem of the freeze that happens on some systems when adjusting the brightness, not about the issue of the brightness controls not working, while the system is functional. Disabling nmi_watchdog just makes us avoid this freeze. You are talking about a different issue here. Maybe you need to open a new bug report for this problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Hi, by different I mean that the system freezes in both the situations, with nmi_watchdog enabled and disabled, and this happens as soon as I soon as I change the brightness levels, and this is the reason I actually reached this bug report. Thanks, -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1007765] Re: brightness adjusting crashes system
On Fri, Aug 23, 2013 at 04:09:46PM -, Aditya wrote: Hi, by different I mean that the system freezes in both the situations, with nmi_watchdog enabled and disabled, and this happens as soon as I soon as I change the brightness levels, and this is the reason I actually reached this bug report. Then, let's do some testing. Could you please do the following: - Boot the system with acpi_backlight=vendor - sudo echo 0 /proc/sys/kernel/nmi_watchdog - cat /proc/sys/kernel/nmi_watchdog (make sure the output is 0) - Try changing the brightness using the keyboard keys, and see whether a freeze would happens or not. Note that if you just put echo 0 /proc/sys/kernel/nmi_watchdog in /etc/rc.local, then you are going to need to reboot the system in order for the script to be executed. If a freeze still happens, then my guess is that there is another source of NMIs on your system other than nmi_watchdog that still conflicts with the vendor firmware backlight driver. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Marwan, your workaround did in fact fix the problem for me. I'll add that when I tried your workaround (echo 0 /proc/sys/kernel/nmi_watchdog), I REMOVED acpi_backlight=vendor (which I already had) at the same time. I rebooted and both problems were fixed: I could change the backlight using my keyboard AND changing the backlight no longer caused the computer to freeze. I haven't tried putting acpi_backlight=vendor back in my grub configuration to see if that breaks anything. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
May be the community is looking for the solution in the wrong direction. Looking in /sys/class/backlight/ lists 3 folders on my Dell inspiron 7520. One of the folders is intel_backlight . Manually doing root@Sirius:~# echo 2000 /sys/class/backlight/intel_backlight/brightness works. This means that the problem is somewhere in the X configuration. From a thread here https://bugs.freedesktop.org/show_bug.cgi?id=29273 I created an entry in xorg.conf Section Device Option Backlight intel_backlight Identifier Card0 Driver intel BusID PCI:0:2:0 EndSection I created this by using X -c and copying only relevant section to /etc/X11/xorg.conf The controls are working fine now. I *do not* have acpi_backlight=vendor . I just have acpi_osi=Linux , and I am not very sure if it is needed at all. ** Bug watch added: freedesktop.org Bugzilla #29273 https://bugs.freedesktop.org/show_bug.cgi?id=29273 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1007765] Re: brightness adjusting crashes system
On Thu, Aug 22, 2013 at 06:10:50PM -, Aditya wrote: May be the community is looking for the solution in the wrong direction. Well, I will elaborate on this bug once and for all. First of all, we can't blame the Linux kernel for this bug, because it is firmware-specific. firmware-specific means that the peace of software (i.e., the backlight driver) causing this bug is written by the affected systems manufacturers (Dell, HP, etc.), and burned into the BIOS ROM chips of those systems. This software is closed-source, so there is no way to fix it, other than via firmware updates provided by the manufacturers. The freeze happens at the time of the interaction between the Linux kernel and the backlight driver provided by the firmware. Basically, It happens as follows: - The user adjust the brightness using the keyboard hot keys, or a software application (e.g., gnome-control-center). - In the first case, The X window system provides a prioritized list of backlight drivers interfaces (exported by the Linux kernel under /sys/class/backlight/) that are used for handling the keyboard key presses. The highest priority interface, which are present on the system, is used. - In the second case, the software application just selects the interface to use for adjusting the brightness from the currently available interfaces under /sys/class/backlight/ - Depending on the driver underlying the interface selected at the previous step, the system may or may not enter SMM (System Management Mode) to adjust the brightness. SMM is an operational mode which the system enters when it wants to run critical firmware (e.g., the peace of software responsible for shutting down the system when the processor temperature hit a critical threshold, or in our case, the peace of software responsible for adjusting the brightness level, etc). When the system is executing software in SMM, it is no longer under the control of the Linux kernel, and is fully controlled by the firmware executed. The video0_acpi and the dell_backlight (or whatever it's called on systems other than Dell) interfaces under /sys/class/backlight/, are interfaces, exported by the Linux kernel, for firmware drivers that execute in SMM. So if they are selected in the previous step, the system is going to enter SMM for adjusting the brightness. On the other hand, the intel_backlight interface on systems with Intel Graphics is just an interface for the Linux kernel driver responsible for adjusting the backlight level of the intel graphics chip. It is executed just like any other driver in the Linux kernel, without the need to enter special modes like SMM. So, if this driver is buggy, we can say that the Linux kernel is buggy, because it is considered part of the kernel. So, we have two cases: 1. The driver underlying the interface selected (by the X window system or the software application used for adjusting the brightness) is firmware. In this case, when adjusting the brightness, the Linux kernel just instructs the processor to enter SMM in order to execute the instructions of this driver, and when finished, it takes control back on the system. 2. The driver underlying the interface selected, is the Linux kernel driver for the graphics chip. In this case, when adjusting the brightness, this driver, provided by the Linux kernel, is responsible for doing the job, while the system is fully controlled by the Linux kernel, and without the need for entering any special modes like SMM for executing opaque firmware. In case 1, we have a problem, because the kernel has another driver, exported via /proc/sys/kernel/nmi_watchdog, that uses a hardware timer to periodically issue signals called NMIs (Non-Maskable Interrupts) every second or two. If an NMI is emitted while the system is operating in SMM, the buggy firmware executing in SMM causes the system to freeze. In case 2, we are fine, because there is no buggy firmware involved. The apci_backlight=vendor solution is not reliable, because all it does is to instruct the Linux kernel to not export the acpi_video0 interface, which is the interface for the BIOS ACPI backlight driver that is executed from SMM. But, it also instructs the kernel to export
[Bug 1007765] Re: brightness adjusting crashes system
This is an update to my post No.93... Not a single time i have have faced any problem with the brigtness button : after SPARX No.17 comment ( sorry for saying that it was Marwans) This bug is FIXED for me by adding these kernel options: GRUB_CMDLINE_LINUX_DEFAULT=quiet splash pcie_aspm=force acpi_backlight=vendor -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I am using debian wheezy... Cannot find a better discussion on this Brightness Bug in the whole world awesome effort here.. I have Dell Inspiron N5010 , Core i3, 4 GB RAM AND INTEL HD After updating to 3.2.xx the system starts hanging when the brightness was adjusted. I googled and found that it was a kernel bug. So i leaned how to compile my own kernel. NOW I HAVE 3.10.5 Kenel BUT TO MY SURPRISE THIS BUG WAS STILL DER. :`-( But then more googling got me to this thread and MARWANS SOLUTION (NO. 71) WORKING FOR ME... NOWWW root@debian:/home/anoop# uname -a Linux debian 3.10.5-anoop-bfs-firstcompile #1 SMP PREEMPT Wed Aug 7 00:05:38 IST 2013 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
For those of you using Inspiron: Marwan's solution worked for me. I'm using 'GRUB_CMDLINE_LINUX_DEFAULT=quiet splash pcie_aspm=force acpi=off' in my /etc/default/grub file. and I've added 'echo 0 /proc/sys/kernel/nmi_watchdog' to my /etc/rc.local file. (Thanks, man!) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I have Dell inspiron with Intel core I3 and Intel HD graphics with ubuntu. 13.04 . I tried setting acpi_backlight=vendor but no help but setting acpi = off works but no touchpad support setting brightness manually in /sys/class/backlight/dell_ brightness/ current* to 1 works and also changing this setting multiple times works great please help. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1007765] Re: brightness adjusting crashes system
On Sat, Jun 22, 2013 at 11:07:27PM -, Savio wrote: I have Dell inspiron with Intel core I3 and Intel HD graphics with ubuntu. 13.04 . I tried setting acpi_backlight=vendor but no help but setting acpi = off works but no touchpad support setting brightness manually in /sys/class/backlight/dell_ brightness/ current* to 1 works and also changing this setting multiple times works great This is actually a kernel bug (actually a firmware bug specific to your machine) that is supposed to be fixed upstream by now (by just disabling the interface for the firmware backlight driver). I think the fix will be available starting from 3.10. For more info, see https://bugzilla.kernel.org/show_bug.cgi?id=57571 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
** Bug watch added: Linux Kernel Bug Tracker #57571 http://bugzilla.kernel.org/show_bug.cgi?id=57571 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1007765] Re: brightness adjusting crashes system
On Sat, Jun 22, 2013 at 11:07:27PM -, Savio wrote: I have Dell inspiron with Intel core I3 and Intel HD graphics with ubuntu. 13.04 . I tried setting acpi_backlight=vendor but no help but setting acpi = off works but no touchpad support You can eliminate this problem for now, by putting this line in your /etc/rc.local: echo 0 /proc/sys/kernel/nmi_watchdog -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Thats help, but adding this line in /etc/rc.local before exit 0 statement making brigthness hotkey unusable. I need to change from setting. will adding this Section Device Identifier Intel Graphics Driver intel Option AccelMethod sna Option Backlight intel_backlight Identifier Card0 Driver intel BusID PCI:0:2:0 EndSection in xorg.conf help me? Should i remove boot option acpi_backlight=vendor Thanks for your help. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1007765] Re: brightness adjusting crashes system
On Sun, Jun 23, 2013 at 04:59:03AM -, Savio wrote: Thats help, but adding this line in /etc/rc.local before exit 0 statement making brigthness hotkey unusable. This couldn't be caused by disabling nmi_watchdog; this is totally unrelated. My guess is that you've booted the system with acpi_backlight=vendor which disabled the ACPI backlight interface (/sys/class/backlight/acpi_video0), and enabled the interface for the vendor backlight driver (e.g., /sys/class/backlight/dell_backlight) which won't be picked up by X, because it's not hard-coded to use it. So, you ended up with no backlight interface for X to use. That's why the hotkeys seem to be not working. Try booting the kernel without acpi_backlight=vendor, while disabling nmi_watchdog from /etc/rc.local as before, and let's see what would happen. will adding this Section Device Identifier Intel Graphics Driver intel Option AccelMethod sna Option Backlight intel_backlight Identifier Card0 Driver intel BusID PCI:0:2:0 EndSection Yes, I think this would help, but I haven't tried it before. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I still have this problem with 3.8.0-19-generic #30-Ubuntu SMP Wed May 1 16:35:23 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux with intel graphics HD4000. When I first boot, changing brightness is fine. But after a period of time, it will hang if I adjust the brightness. Similarly, when I first boot I can logout and power down my laptop without issues, but after a time, if I attempt to log out or shutdown it hangs. I suspect these hangs are both related. Adding 'acpi_backlight=vendor' to the kernel parameters didn't make much of a difference for me. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Why is this bug still in Unassigned state...? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Unfortunately the issue is back on Xubuntu 13.04, Dell Inspiron 5010, Intel Graphics. Temporarily try this brightness adjuster: http://www.omgubuntu.co.uk/2013/04/brightness-control-ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I am still having this problem even after adding 'acpi_backlight=vendor' to grub cmd option, but now crash occurs less often. This problem also occurs when brightness changes due to power on/off. In this case(when frozen) if I remove or plug-in charger, brightness level changes but nothing else work. Sometime I notice that Brightness Indicator doesn't display brightness level correctly. Ubuntu 13.04 (64-bit), ATI Mobility Radeon HD 5400 series -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Hi, I think adding 'acpi_backlight=vendor' to grub cmd option fix problem for only Intel graphics cards, for other GPU this bug is still present. This is very serious one. As this affects linux usability and stability. Regards, Savio -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
As with others that have an ATI graphics card, the solution in #71 does NOT work for me either I'm afraid. Can't wait for some sort of aolution to this; it's a real pain! Occasionally it even seems to hit when my computers monitor turns off/on after being left.. uname -a: Linux james-laptop 3.5.0-23-generic #35-Ubuntu SMP Thu Jan 24 13:15:40 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux lspci (gfx card only) : VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Manhattan [Mobility Radeon HD 5400 Series] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Adding 'acpi_backlight=vendor' to the GRUB_CMDLINE_LINUX_DEFAULT options in /etc/default/grub (comment #71) also worked for me. 'quiet splash' and 'pcie_aspm=force' options shouldn't be necessary in this situation (though 'quiet splash' is added by default). Also, as a general rule, you should check what commands do before blindly following solutions followed by others. Google is your friend. ; ) $ uname -a Linux Mazinger-Z 3.5.0-22-generic #34-Ubuntu SMP Tue Jan 8 21:47:00 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux $ sudo lshw -class system mazinger-z description: Portable Computer product: Inspiron N5010 (To be filled by O.E.M.) vendor: Dell Inc. version: A04 serial: 1D04FL1 width: 64 bits capabilities: smbios-2.6 dmi-2.6 vsyscall32 configuration: boot=normal chassis=portable sku=To be filled by O.E.M. uuid=44454C4C-4400-1030-8034-B1C04F464C31 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
SPARX's solution seems to have worked for me as well (comment #71). $uname -a Linux Inspiron-N5010 3.5.0-22-generic #34-Ubuntu SMP Tue Jan 8 21:41:11 UTC 2013 i686 i686 i686 GNU/Linux Thanks for the work around! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Brilliant work by SPARX there..!! After being frustrated by this problem for months, i can confirm too that the solution in 71 works I had this earlier but the problem still existed. GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor Looks like adding the pcie_aspm=force is the key to 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/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
It seems acpi_backlight=vendor grub mod works!!! #71 THANK YOU SPARX! Dell Inspiron N5010 (Intel Graphics) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I have the same issue on a Dell Inspiron M5010. The workaround in comment #71 works for me too. pcie_aspm=force is irrelevant here, though. acpi_backlight is the one that did the trick. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Hi, The bug reproduces on my Dell Inspiron 1564 also and the workaround in Comment #71 is not working (ATI HD 5470 video card). Let me know if there's anything I can help you with in fixing this. Thanks, Laur. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
This bug affects me too: Linux dell 3.5.0-21-generic #32-Ubuntu SMP Tue Dec 11 18:51:59 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux dell studio 1558 After months of hating ubuntu on this machine: This bug is FIXED for me by adding these kernel options: GRUB_CMDLINE_LINUX_DEFAULT=quiet splash pcie_aspm=force acpi_backlight=vendor changed in/with: $sudo nano /etc/default/grub $sudo update-grub $sudo reboot Thought I share this... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I can confirm that my system does not freeze after using the workaround in Comment #71. I will post on the upstream bug also. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I can also confirm that the workaround in Comment #71 fixes this bug, even if you increase and decrease brightness very aggressively. Thank you very much SPARX! Hopefully this can now be fixed without the need for this workaround, but this will do for now. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Sorry guys, but even this workaround is not working for my system... :( Still doing the brightness changes for 5-10 times the system crashes...The issue is with the graphics card of the system...ATI HD 5470... Ati truly sucks big time -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: fglrx-installer (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/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
There is no fix for this bug as of yet. I removed the link to upstream bug https://bugzilla.kernel.org/show_bug.cgi?id=15895 . That bug is for the i915 driver and this bug is for fglrx. Adding a fglrx task for review. ** Also affects: fglrx-installer (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Status: Triaged = Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
** No longer affects: linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Has the bug been solved in linux... @Joseph Salisbury, what needs to be done to apply the patch, normal update or something else? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I'd just like to chime in and say this bug affects me too. I have a dell studio 1558 with a core i5 M450 and radeon HD 5400 (ish), and run ubuntu 12.10, but also had the same issue on 12.04. The problem never affected me prior to upgrading to 12.04. In addition, my computer sometimes freezes on startup (after the GRUB screen, but before the login screen, often without seeing the ubuntu logo at all, happening perhaps 1 in every 10 boots now); an issue I believe is related, as both started happening around the same time. In agreement with other posts here, changing the brightness too quickly triggers a freeze, which is characterised in my case by the screen turning into changing, multicoloured rectangular blocks, sometimes with a mouse cursor (often enlarged) visible or semi visible. REISUB does not work, as with other users. On 12.04, I did not get multicoloured blocks on a freeze if I recall; just a blank screen. REISUB also does not work when my computer freezes on boot. Anyway, I'm looking forward to a fix for this too, so let me know if there is any information or output I can provide, or anything I can try, and I shall do so if possible :) Thanks, James -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
** Changed in: linux Status: In Progress = Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Been affected by this for several months now with no good solution in sight. It also crashes when i use the change brightness option in the user preferences. And of course it happens when i use the shortcut keys to change brightness provided on the laptop. I have a dell inspiron and the 64-bit version. And as someone else mentioned before, this occurs only when you try to agressively change the brightness. A slow brightness change doesnt cause the crash. A frustrating problem. Have actually started using windows at times now. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
This bug affects me too. I use a Dell Inspiron n5010 Core i3 Integrated Graphics, running ubuntu 12.10. It happens since 12.04. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Hi, a month ago i have installed custom kernel from this thread at Polish ubuntu forum: http://ubuntu.pl/forum/viewtopic.php?f=216t=160361 Months of use, and i have no more crashes and no more rainbow on brightness change. The problem is in generic kernel. The only problem is that the system boot 15 - 25s longer :( But faster than windows :) uname -a Linux dell-on-lin 3.4.11-ext73-f1-20.3-k8-ags-cfs #1 SMP Thu Sep 20 20:22:00 CEST 2012 x86_64 x86_64 x86_64 GNU/Linux display: :0.0 screen: 0 OpenGL vendor string: Advanced Micro Devices, Inc. OpenGL renderer string: ATI Mobility Radeon HD 5400 Series OpenGL version string: 4.2.11733 Compatibility Profile Context Pozdrowienia Piotr -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I am having the same problem, i have Dell inspiron 1464 and i noticed this problem in 12.04 and hoped it will fix in 12.10 but still the same problem. I have installed 64 bit version of ubuntu and it has ATI graphics card. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
This bug still persists in Ubuntu 12.10 for me, and it seems to be common amongst Dell Studio 1558 users. uname - a: Linux ciaran-Studio-1558 3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9 19:31:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux Intel core i3 370m AMD Radeon HD5470 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Hello, I have been an Ubuntu user for the past 4 years but since the launch of ubuntu 12.04 and this bug on my Dell Studio 1558...i have to log into windows... If I change the screen brightness continuously a few times, the screen freezes and computer does not respond... I have tried Kubuntu 12.04, Xubuntu 12.04, Ubuntu 12.04, Lubuntu 12.04, Linux Mint 13, OpenSUSE but had this problem with every OS owing to some issue with the KERNEL. I would also like to state that Ubuntu 11.10 works like a charm and being a KDE user, I want to update to the latest version of KDE because of so many bug fixes and new features... In the end, I just hate this stupid Dell Studio 1558hopefully someone can resolve the kernel bug soon :) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Hello, I am affected by this bug too. I upgraded my Dell Studio from 10.04 to 12.04.1 and found this exact same issue while changing brightness. Kernel that I am using - 3.2.0-31-generic (64-bit). $ uname -a Linux neo 3.2.0-31-generic #50-Ubuntu SMP Fri Sep 7 16:16:45 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux If there is any additional details required, pls let me know. Thanks, Manasvi Gupta -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
** Tags removed: kernel-key ** Tags added: kernel-da-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Sorry for my english. I`m affected with this bug too. First time i saw it on debian wheezy with kernel 3.0. Dell Studio 1558 corei3 m350 ati 5470HD I don`t change manually brightnes at startup i have set up xbacklight. sometimes my laptop chrash at startup. It is randomly and very annoying. I use xubuntu 12.04.1. x64 The bug started affect me after kernel upgrade to 3.2.0-28 Pozdrowienia Piotr -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I gave up. Really. Lots of kernel versions, and none of them have fixed this bug. I'm returning to Windows. I have been using only Linux since 1999 and I am pretty disapointed on how things are now. Fedora, Ubuntu, Mint, every distro that uses this 3.x kernel have the same problem, which is a very serious one. I am wondering if the developers are really testing their stuff before releasing it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I have the same bug: $ uname -a Linux Inspiron-N5010 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux Thanks in advance -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
** Changed in: linux Status: Incomplete = 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/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Hi!! Here reporting the same issue!! I have a Samsung RV420. I though that this problem have to do with the model, but NO! It's kernel's fault, so here I am, if someone need some log, just tell me!! $ uname -a Linux Paca 3.2.0-29-generic-pae #46-Ubuntu SMP Fri Jul 27 17:25:43 UTC 2012 i686 i686 i386 GNU/Linux Thanks in advance! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Must have been a lucky boot! Today the bug crashed my system again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
This bug is marked as affecting 7 other people. Can other folks affected by this bug post their hardware details? Also v3.6-rc2[0] of the mainline kernel is now available. Would it be possible to test that kernel and report back if it has the bug or not? Thanks in advance! [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-rc2-quantal/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
If nobody else tests this, I'll test this within a few days. As for hardware details, I'm running a Dell Inspiron N5010 with an up-to-date Ubuntu 12.04. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Strange, but i think i am not longer affected by this bug. $ uname -a Linux karlis-Studio 3.2.0-29-generic-pae #46-Ubuntu SMP Fri Jul 27 17:25:43 UTC 2012 i686 i686 i386 GNU/Linux Was not having a crash for some time now and wanted to test - so i changed the brightness for about 40-60 seconds and everything worked fine. Maybe it is the kernel 3.2.0-29-generic-pae (but i did uninstall ulatencyd, too, for the kernel to boot.) Hope it works for you guys too. System: Dell Studio 1558 Elementary OS 0.2 alfa 3.2.0-29-generic-pae -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
For the record, I'm running the 64-bit version of Ubuntu (3.2.0-29-generic, x86_64), maybe the problems only occurs with the 64 bit version. I've quickly searched on Google how to switch kernels to 32-bit, but it looks like that's not an easy thing to do. Is there anybody experiencing this bug on 32-bit? If not, at least we'll have a workaround. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I'm experiencing this issue on my Dell Inspiron-N5010 + Ubuntu 12.04. The system just hangs (no colorful screen for me) beyond REISUB resetting. It happens whether I use the function keys on the laptop or the brightness manager of the system. If I can contribute with a log or something, please let me know. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
The v3.6-rc1[0] kernel is now available. Can you test that kernel and report back if the bug still exists? Thanks in advance! [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-rc1-quantal/ ** Tags added: kernel-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Thanks, Joseph. Are there binary packages available for precise? Is it (somewhat) safe to install version 3.6 on precise using the packages for quantal? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
@Umang, Yes, the link posted in comment #45 is safe to install on Precise. After power on, you can hold the shift key to access the GRUB menu. That will allow you to boot back into your prior kernel and remove the v3.6-rc1 kernel after testing. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Thanks, Joseph. The 3.6 kernel didn't fix the problem for me. $uname -a Linux umang-laptop 3.6.0-030600rc1-generic #201208022056 SMP Fri Aug 3 01:04:00 UTC 2012 i686 i686 i386 GNU/Linux In addition to being a little slower to boot, the kernel also may have done something to the hardware. After the 3.6 kernel froze, I forced the laptop to power off by holding the power button (like I normally do when it hangs) and I could smell something odd coming from my laptop. I booted back into the 3.2 kernel immediately and within five minutes the smell seemed to have abated. For future reference, is there anything I can do to shutdown in situation like these without forcing a power off? I hope this helps debug the issue. It has been particularly painful recently. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I can confirm the 3.6 kernel does not fix the problem, though I didn't have any of the other problems described in post #48. Instead of the current Ubuntu 12.10 live DVD, the screen doesn't freeze, but shows the behaviour in the video previously posted. It also seemed as if a more 'agressive' change of brightness was necessary to trigger the bug (quickly increasing and decreasing the brightness). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Today's live dvd build for Ubuntu 12.10 (Quantal Quetzal) still has this bug, although it does seem as if you have to do a little more than just increasing and decreasing the brightness (you have to increase and decrease it rapidly, kind of agressively), but maybe it just seems that way to me. I do agree that this is a rather serious problem. Not being able to increase or decrease the brightness on a laptop seriously affects battery life (as I am stuck on maximum brightness), almost to the point where it is becoming a problem for use during class, which is my laptops main purpose (and I opted for the extra large battery, so I can't even imagine what it's like for people with the normal battery). So I do hope this will be fixed as soon as possible, hopefully at least by 12.10. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Could you post on the kernel bug asking them to change its status from NEEDINFO? I don't want to seem obnoxious as the last comment is by me I hit the button once this morning and it completely froze. Unfortunately I'm helpless and I have to try and deal with the freeze every two days, since my laptop brightness is so bright that it hurts my eyes. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
There has been no activity on the kernel bug for a long time now. Is there anything we can do to draw attention to this bug? I have stopped changing the brightness on my rather bright screen and this is not a nice bug to live with. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I verified that the problem exists on 3.4 mainstream build and commented on an existing bug upstream (https://bugzilla.kernel.org/show_bug.cgi?id=15895). If you feel as though you have any other useful information to add, please do so. ** Bug watch added: Linux Kernel Bug Tracker #15895 http://bugzilla.kernel.org/show_bug.cgi?id=15895 ** Also affects: linux via http://bugzilla.kernel.org/show_bug.cgi?id=15895 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
** Changed in: linux Status: Unknown = Incomplete ** Changed in: linux 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/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report at bugzilla.kernel.org [1]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug. If you are comfortable with opening a bug upstream, It would be great if you can report back the upstream bug number in this bug report. That will allow us to link this bug to the upstream report. [1] https://wiki.ubuntu.com/Bugs/Upstream/kernel ** Changed in: linux (Ubuntu) Status: Confirmed = Triaged ** Tags added: quantal ** Changed in: linux (Ubuntu) Importance: Medium = High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
** Package changed: xorg (Ubuntu) = linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Tested kernels 3.4 and 3.5-rc3 and both of them had the same bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
From Elco's response it looks as though this issue is not fixed in the mainline build. Therefore, changing to confirmed and tagging kernel-bug- exists-upstream as Joseph said. ** Changed in: xorg (Ubuntu) Status: Incomplete = Confirmed ** Tags removed: needs-upstream-testing ** Tags added: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I retested the Ubuntu 12.10 daily live version today, and unfortunately the bug does still exist in kernel 3.5. I'm not sure if I tested it wrong the first time (it seems to matter how fast you try to increase or decrease the brightness) or if this is a regression. The screen doesn't show the behaviour in the video any more though (the weird colors), now it just hangs. Switching to CLI (CTR-ALT-F1) is not possible. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
try with the precise kernels installing -all.deb, image and header for your architecture and pae if ram2Gb nad let us know --- Ubuntu Bug Squad volunteer triager http://wiki.ubuntu.com/BugSquad -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Alright, I installed the -all, image-amd64 and headers-amd64 from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4-precise/ (if I understand correctly, 3.4 the latest stable release of the kernel for precise). Unfortunately it did not work. The 3.4 kernel was succesfully installed (I guess, since Grub detected it, and I could boot the 3.4 option in Grub, and uname -a reported version 3.4), but Unity 3D didn't start, so Ubuntu fell back to Unity 2D and adjusting the brightness settings still crashed the system (though the screen animation was now slightly different then from the video). Also, all drivers installed using Jockey were disabled and refused to reinstall (including AMD/ATI graphics drivers). Strangely, when I originally installed Ubuntu, Unity 3D worked out of the box with the opensource drivers, but now it fell back to Unity 2D. Luckely, I could still select the 3.2 kernel in Grub and there Unity 3D still worked fine (except the brightess-crash-problem still occured). I uninstalled the 3.4 kernel files and ran update-grub2 (since that was recommended). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
If I run the Ubuntu 12.10 (Quantal Quetzal) daily live image from USB, brightness fuctions normally again, so it would seem the kernel currently used in 12.10 has fixed this issue. Any way to get it fixed in 12.04 too? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
I'm having the same problem the video is showing. Has the kernel-update being refered to in #32 already landed? If not, will this happen automatically or do I really have to manually install it? I'm asking because I'm not sure if I'm technically skilled enough to start messing with kernels. Then again, this bug makes my laptop virtually unusable (every time you accidentaly hit one of the brightness-keys it crashes and I have to reboot). In case I do have to install the kernel manually, I just have to install the two debs from http://kernel.ubuntu.com/~kernel- ppa/mainline/v3.4-precise/, the headers and the image and then I just reboot? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Hello Karlis Good, this mean that the problem is in the kernel. So Reproduce again the bug, restart the pc and attach the required log files. Thanks Fabio --- Ubuntu Bug Squad volunteer triager http://wiki.ubuntu.com/BugSquad ** Package changed: ubuntu = linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
Done that above, run in terminal apport-collect 1007765 --- Ubuntu Bug Squad volunteer triager http://wiki.ubuntu.com/BugSquad ** Tags added: precise screencast -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
** Attachment added: Xorg.0.log.old https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1007765/+attachment/3174589/+files/Xorg.0.log.old -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
** Attachment added: kern.log https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1007765/+attachment/3174590/+files/kern.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649346 --- Ubuntu Bug Squad volunteer triager http://wiki.ubuntu.com/BugSquad ** Package changed: linux (Ubuntu) = xorg (Ubuntu) ** Bug watch added: Debian Bug tracker #649346 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649346 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1007765] Re: brightness adjusting crashes system
apport information ** Tags added: apport-collected ubuntu ** Description changed: When adjusting my laptops brightness the system crashes. what logs do in need to add and how to get them? System: -- Dell Studio 1558 -- Ubuntu 12.04 Video showing the process: http://www.youtube.com/watch?v=Vxp_rWXHnrg + --- + .tmp.unity.support.test.0: + + ApportVersion: 2.0.1-0ubuntu8 + Architecture: amd64 + CompizPlugins: [core,composite,opengl,neg,commands,put] + CompositorRunning: None + DistUpgraded: 2012-01-26 12:27:33,165 DEBUG enabling apt cron job + DistroCodename: precise + DistroRelease: Ubuntu 12.04 + DistroVariant: ubuntu + DkmsStatus: + bcmwl, 5.100.82.38+bdcom, 3.2.0-23-generic, x86_64: installed + bcmwl, 5.100.82.38+bdcom, 3.2.0-24-generic, x86_64: installed + fglrx, 8.960, 3.2.0-20-generic, x86_64: installed + fglrx, 8.960, 3.2.0-23-generic, x86_64: installed + fglrx, 8.960, 3.2.0-24-generic, x86_64: installed + ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu + GraphicsCard: + Advanced Micro Devices [AMD] nee ATI RV710 [Mobility Radeon HD 4500/5100 Series] [1002:9553] (prog-if 00 [VGA controller]) +Subsystem: Dell Device [1028:0413] + InstallationMedia: Ubuntu 11.10 Oneiric Ocelot - Release amd64 (20111012) + JockeyStatus: + xorg:fglrx_updates - ATI/AMD proprietary FGLRX graphics driver (post-release updates) (Proprietary, Disabled, Not in use) + kmod:wl - Broadcom STA wireless driver (Proprietary, Enabled, In use) [auto-install] + xorg:fglrx - ATI/AMD proprietary FGLRX graphics driver (Proprietary, Enabled, In use) + MachineType: Dell Inc. Studio 1558 + NonfreeKernelModules: fglrx wl + Package: xorg 1:7.6+12ubuntu1 + PackageArchitecture: amd64 + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=cd6ba6ea-6e63-41cc-b872-c101873444c6 ro quiet splash + ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16 + Tags: precise ubuntu + Uname: Linux 3.2.0-24-generic x86_64 + UpgradeStatus: Upgraded to precise on 2012-01-26 (129 days ago) + UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare + dmi.bios.date: 09/13/2010 + dmi.bios.vendor: Dell Inc. + dmi.bios.version: A10 + dmi.board.vendor: Dell Inc. + dmi.board.version: A10 + dmi.chassis.type: 8 + dmi.chassis.vendor: Dell Inc. + dmi.chassis.version: A10 + dmi.modalias: dmi:bvnDellInc.:bvrA10:bd09/13/2010:svnDellInc.:pnStudio1558:pvrA10:rvnDellInc.:rn:rvrA10:cvnDellInc.:ct8:cvrA10: + dmi.product.name: Studio 1558 + dmi.product.version: A10 + dmi.sys.vendor: Dell Inc. + version.compiz: compiz 1:0.9.7.8-0ubuntu1 + version.fglrx-installer: fglrx-installer N/A + version.ia32-libs: ia32-libs 20090808ubuntu36 + version.libdrm2: libdrm2 2.4.32-1ubuntu1 + version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3 + version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A + version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3 + version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.2 + version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1 + version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2 + version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4 + version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2 ** Attachment added: BootDmesg.txt https://bugs.launchpad.net/bugs/1007765/+attachment/3174675/+files/BootDmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007765 Title: brightness adjusting crashes system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1007765/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
