Bug#655377: More on it
I've compiled that patch with debian kernel (from linux-source-3.1) and it works for me too. -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAFVLVSMQxsDFdXa-S0WkNEZi6iUFUW39k_0srtEtX98U=-+s...@mail.gmail.com
Bug#655377: Kernel panic when turning off screen backlight using laptop Fn key since 3.1 (has patch)
Package: linux-image-3.1.0-1-amd64 Version: 3.1.6-1 Hello, there's patch available to fix the kernel panic when 'turning off screen backlight' which me and other people experienced (on various distros including debian testing on lenovo). Link to issue/patch: https://lkml.org/lkml/2011/10/19/485 includes link to the PATCH in the bottom. Thanks - Debian Testing installed 10 january 2012 on lenovo g series laptop -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAFVLVSNZ0dU_UTh_hLpYzH9u2H-nYF=5lqbdfi8f6+0fmhp...@mail.gmail.com
Bug#655377:
Patch also could be related to i386 architecture too IIRC. -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAFVLVSPFiCD0rwPB_VPXdv0eoyCTp2VK=wtNDfrVHaL=gfy...@mail.gmail.com
Bug#655377: [?? - 3.1.6 regression] Kernel panic when turning off screen backlight using laptop Fn key
retitle 655377 [ideapad_laptop] NULL pointer dereference turning off backlight with fn key # regression severity 655377 important tags 655377 + upstream fixed-upstream reassign 655377 src:linux-2.6 3.1.6-1 quit Hi, Artem X wrote: Hello, there's patch available to fix the kernel panic when 'turning off screen backlight' which me and other people experienced (on various distros including debian testing on lenovo). Might be fixed by v3.2-rc1~111^2~22 (ideapad: Check if acpi already handle backlight power to avoid a page fault, 2011-10-23). Could you try a 3.2.y release candidate from experimental to check? Thanks, Jonathan -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120110194046.GF22184@burratino
Bug#655377: [3.0 - 3.1 regression] Kernel panic when turning off screen backlight using laptop Fn key
tags 655377 + patch moreinfo quit Jonathan Nieder wrote: Artem X wrote: Hello, there's patch available to fix the kernel panic when 'turning off screen backlight' which me and other people experienced (on various distros including debian testing on lenovo). Might be fixed by v3.2-rc1~111^2~22 (ideapad: Check if acpi already handle backlight power to avoid a page fault, 2011-10-23). Could you try a 3.2.y release candidate from experimental to check? Even better, please try this patch against a 3.1.y kernel.org kernel. Instructions for testing a patched kernel are at [1]. If it works, we can send it to Greg to consider applying to the 3.1.y branch. Luckily the ideapad-laptop backlight driver was only introduced in v3.1-rc1~14^2~29, so older kernels do not have this bug. Many thanks, Jonathan [1] http://kernel-handbook.alioth.debian.org/ch-common-tasks.html#s-kernel-org-package -- 8 -- From: Rene Bollford xsec...@googlemail.com Date: Sun, 23 Oct 2011 09:56:42 +0200 Subject: ideapad: Check if acpi already handle backlight power to avoid a page fault commit d4afc7754a60b885b63ef23fd194984e2d53a4e6 upstream. This patch avoid a page fault in the ideapad-laptop extras when turning the backlight power on or off. Signed-off-by: Rene Bolldorf xsec...@googlemail.com Signed-off-by: Matthew Garrett m...@redhat.com Signed-off-by: Jonathan Nieder jrnie...@gmail.com --- drivers/platform/x86/ideapad-laptop.c |2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index 0c595410e788..0d94eec00f4d 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -493,6 +493,8 @@ static void ideapad_backlight_notify_power(struct ideapad_private *priv) unsigned long power; struct backlight_device *blightdev = priv-blightdev; + if (!blightdev) + return; if (read_ec_data(ideapad_handle, 0x18, power)) return; blightdev-props.power = power ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; -- 1.7.8.3 -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120110201508.GG22184@burratino
Bug#655377:
Could you try a 3.2.y release candidate from experimental to check? This issue is fixed for me in 3.2.0-rc7-amd64 in experimental. --- Thanks -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/cafvlvsprrg4dp0bwcfa2-t0_qyuzkjyqrlkfz-mey6p+o-r...@mail.gmail.com
Bug#655377:
Do i really need vanilla kernel? Or can i apply that patch to debian testing kernel 3.1.0 by using 9.7.5. Compiling the kernel source: Debian standard method in debian reference? -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/cafvlvsokj7wrxto_o-ofts4ugpg4eva6sza3ncps+kamach...@mail.gmail.com
Bug#655377: [ideapad_laptop] NULL pointer dereference turning off backlight with fn key
Artem X wrote: Or can i apply that patch to debian testing kernel 3.1.0 by using 9.7.5. Compiling the kernel source: Debian standard method in debian reference? That's almost as good, sure. -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20120110205939.GK22184@burratino
Bug#655377: marked as done ([ideapad_laptop] NULL pointer dereference turning off backlight with fn key)
Your message dated Tue, 10 Jan 2012 14:58:50 -0600 with message-id 20120110205850.GJ22184@burratino and subject line Re: [ideapad_laptop] NULL pointer dereference turning off backlight with fn key has caused the Debian Bug report #655377, regarding [ideapad_laptop] NULL pointer dereference turning off backlight with fn key to be marked as done. This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact ow...@bugs.debian.org immediately.) -- 655377: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=655377 Debian Bug Tracking System Contact ow...@bugs.debian.org with problems ---BeginMessage--- Package: linux-image-3.1.0-1-amd64 Version: 3.1.6-1 Hello, there's patch available to fix the kernel panic when 'turning off screen backlight' which me and other people experienced (on various distros including debian testing on lenovo). Link to issue/patch: https://lkml.org/lkml/2011/10/19/485 includes link to the PATCH in the bottom. Thanks - Debian Testing installed 10 january 2012 on lenovo g series laptop ---End Message--- ---BeginMessage--- Version: 3.2~rc7-1~experimental.1 Artem X wrote: Could you try a 3.2.y release candidate from experimental to check? This issue is fixed for me in 3.2.0-rc7-amd64 in experimental. Yay. :) Marking accordingly. ---End Message---
Bug#655377: [ideapad_laptop] NULL pointer dereference turning off backlight with fn key
I've compiled vanilla 3.1.6 with that patch and turning off blacklight was working. -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/cafvlvsop750x4l+qgr16qc53v+joksxa-ujskx3k0bx9kqo...@mail.gmail.com
