Most recent kernel where this bug did *NOT* occur: 2.6.18-1.2896.fc6(Fedora Core 6) Distribution: When I unlock the LCD monitor,the brightness of the monitor will change itself to the highest level automatically. *Note*:I built and install this kernel from source tree with gcc 4.1 version and some relevant gnu tools. Hardware Environment: IBM ThinkPad R52, Model Type:1846-5EC, Processor:Pentium M (Dothan)1.73GHz, ATI Mobility X300, Intel 915GM chipset, 768M RAM ,LCD Monitor: Generic 1024*768(maximum) 60Hz Software Environment:Fedora Core 6(updated),Gnome Environment Problem Description:I compiled this kernel successfully from source tree with gcc 4.1 and other GNU tools. Running this kernel,when I unlock my unlocked screen within Fedora Core 6, the LCD monitor changes its brightness to the highest level automatically. In fact, the kernels since 2.6.19 work with this BUG.I think it might have something to do with ACPI ,maybe others. Steps to reproduce: Every time when I unlock the locked screen, this problem turns up. *NO* abnormity ! So this is a strong BUG. No steps to be done to fix this bug on my own since I even can not be sure if this has something to do with ACPI or something else.
Has this issue always existed with every revision of the kernel.org kernel, or is this a regression that was not seen in earlier kernels? please attach your .config here In particular, are you running the IBM_ACPI or ACPI_VIDEO modules, and do you run them with fedora's kernel?
Firstly thanks very much for watching me as a kernel bug reporter : ) And the bug I reported did not appeared in the earlier revisions of kernels on kernel.org until 2.6.19,so I compiled 2.6.20.4 kernel from source certainly has that ACPI bug I reported. And I am sure that I am running *IBM_ACPI* module and *VIDEO* module inside Fedora Core 6's kernel. Thank you again! *Note* config file of 2.6.20.4 kernel attached. On 4/3/07, bugme-daemon@bugzilla.kernel.org <bugme-daemon@bugzilla.kernel.org > wrote: > > http://bugzilla.kernel.org/show_bug.cgi?id=8295 > > len.brown@intel.com changed: > > What |Removed |Added > > ---------------------------------------------------------------------------- > CC| |acpi- > | |bugzilla@ > lists.sourceforge.n > | |et > Owner|acpi_other@kernel - |luming.yu@intel.com > |bugs.osdl.org | > Component|Other |Power-Video > Summary|2.6.20.4 kernel works badly |LCD always max brightness > |with my Fedora,it might have|after unlocking X - > ThinkPad > |BUG on ACPI |R52 > > > > ------- Additional Comments From len.brown@intel.com 2007-04-02 21:48 > ------- > Has this issue always existed with every revision > of the kernel.org kernel, or is this a regression that > was not seen in earlier kernels? > > please attach your .config here > In particular, are you running the IBM_ACPI or ACPI_VIDEO modules, > and do you run them with fedora's kernel? > > ------- You are receiving this mail because: ------- > You reported the bug, or are watching the reporter. > <div>Firstly thanks very much for watching me as a kernel bug reporter : )</div> <div> And the bug I reported did not appeared in the earlier revisions of kernels on <a DEFANGED_onclick="return top.js.OpenExtLink(window,event,this)" href="http://kernel.org/" target="_blank">kernel.org</a> until 2.6.19,so I compiled <a DEFANGED_onclick="return top.js.OpenExtLink(window,event,this)" href="http://2.6.20.4/" target="_blank">2.6.20.4</a> kernel from source certainly has that ACPI bug I reported. </div> <div> And I am sure that I am running *IBM_ACPI* module and *VIDEO* module inside Fedora Core 6's kernel.</div> <div> Thank you again!<br>*Note* config file of <a href="http://2.6.20.4">2.6.20.4</a> kernel attached.<br> </div> <div><span class="gmail_quote">On 4/3/07, <b class="gmail_sendername"><a DEFANGED_onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:bugme-daemon@bugzilla.kernel.org" target="_blank">bugme-daemon@bugzilla.kernel.org </a></b> <<a DEFANGED_onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:bugme-daemon@bugzilla.kernel.org" target="_blank">bugme-daemon@bugzilla.kernel.org </a>> wrote:</span> <blockquote class="gmail_quote" DEFANGED_style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><a DEFANGED_onclick="return top.js.OpenExtLink(window,event,this)" href="http://bugzilla.kernel.org/show_bug.cgi?id=8295" target="_blank"> http://bugzilla.kernel.org/show_bug.cgi?id=8295</a> <br><br><a DEFANGED_onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:len.brown@intel.com" target="_blank">len.brown@intel.com</a> changed:<br><br> What |Removed |Added <br>----------------------------------------------------------------------------<br> CC| |acpi-<br> | |bugzilla@lists.sourceforge.n<br> | |et<br> Owner|acpi_other@kernel - |luming.yu@<a DEFANGED_onclick="return top.js.OpenExtLink(window,event,this)" href="http://intel.com/" target="_blank">intel.com </a><br> |bugs.osdl.org |<br> Component|Other |Power-Video<br> Summary|2.6.20.4 kernel works badly |LCD always max brightness <br> |with my Fedora,it might have|after unlocking X - ThinkPad <br> |BUG on ACPI |R52<br><br><br><br>------- Additional Comments From <a DEFANGED_onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:len.brown@intel.com" target="_blank">len.brown@intel.com </a> 2007-04-02 21:48 -------<br>Has this issue always existed with every revision<br>of the <a DEFANGED_onclick="return top.js.OpenExtLink(window,event,this)" href="http://kernel.org/" target="_blank">kernel.org</a> kernel, or is this a regression that <br>was not seen in earlier kernels? <br><br>please attach your .config here<br>In particular, are you running the IBM_ACPI or ACPI_VIDEO modules,<br>and do you run them with fedora's kernel?<br><br>------- You are receiving this mail because: ------- <br>You reported the bug, or are watching the reporter.<br></blockquote></div><br><br clear="all"><br>-- <br>The whole GNU project is really one big hack.<br>It's one big act of subversive playful cleverness,to change society for the better,because I'm only interested in changing it for the better,but in a clever way.
Created attachment 11039 [details] *Note* config file of 2.6.20.4 kernel attached. Firstly thanks very much for watching me as a kernel bug reporter : ) And the bug I reported did not appeared in the earlier revisions of kernels on kernel.org until 2.6.19,so the compiled 2.6.20.4 kernel from source certainly has that ACPI bug I reported. And I am sure that I am running *IBM_ACPI* module and *VIDEO* module inside Fedora Core 6's kernel. Thank you again! *Note* config file of 2.6.20.4 kernel attached.
It is very simple to check if this is due to acpi by booting kernel with acpi=off, and check if the problem persists.
Hi, Pip, Does this still exists in the latest kernel release? Please do the same test without ibm_acpi or thinkpad_acpi driver loaded.
On 9/17/07, bugme-daemon@bugzilla.kernel.org < bugme-daemon@bugzilla.kernel.org> wrote: > > http://bugzilla.kernel.org/show_bug.cgi?id=8295 > > > rui.zhang@intel.com changed: > > What |Removed |Added > > ---------------------------------------------------------------------------- > AssignedTo|luming.yu@intel.com |rui.zhang@intel.com > Status|NEW |ASSIGNED > > > > > ------- Comment #5 from rui.zhang@intel.com 2007-09-17 00:55 ------- > Hi, Pip, > Does this still exists in the latest kernel release? > Please do the same test without ibm_acpi or thinkpad_acpi driver loaded. > > > -- > Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email > ------- You are receiving this mail because: ------- > You reported the bug, or are watching the reporter. > Sorry for replying too late,the ACPI problem disappeared since 2.6.21 of the kernel version. Thank you very much for tracking this bug report,but it isn't a bug anymore : ) <br><br><div><span class="gmail_quote">On 9/17/07, <b class="gmail_sendername"><a href="mailto:bugme-daemon@bugzilla.kernel.org">bugme-daemon@bugzilla.kernel.org</a></b> <<a href="mailto:bugme-daemon@bugzilla.kernel.org"> bugme-daemon@bugzilla.kernel.org</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><a href="http://bugzilla.kernel.org/show_bug.cgi?id=8295"> http://bugzilla.kernel.org/show_bug.cgi?id=8295</a><br><br><br><a href="mailto:rui.zhang@intel.com">rui.zhang@intel.com</a> changed:<br><br> What |Removed |Added<br>---------------------------------------------------------------------------- <br> <a href="mailto:AssignedTo|luming.yu@intel.com">AssignedTo|luming.yu@intel.com</a> |rui.zhang@<a href="http://intel.com">intel.com</a><br> Status|NEW |ASSIGNED<br><br> <br><br><br>------- Comment #5 from <a href="mailto:rui.zhang@intel.com">rui.zhang@intel.com</a> 2007-09-17 00:55 -------<br>Hi, Pip,<br>Does this still exists in the latest kernel release?<br>Please do the same test without ibm_acpi or thinkpad_acpi driver loaded. <br><br><br>--<br>Configure bugmail: <a href="http://bugzilla.kernel.org/userprefs.cgi?tab=email">http://bugzilla.kernel.org/userprefs.cgi?tab=email</a><br>------- You are receiving this mail because: -------<br>You reported the bug, or are watching the reporter. <br></blockquote></div><br>Sorry for replying too late,the ACPI problem disappeared since 2.6.21 of the kernel version.<br>Thank you very much for tracking this bug report,but it isn't a bug anymore : )<br><br clear="all"> <br>-- <br>The whole GNU project is really one big hack.<br>It's one big act of subversive playful cleverness,to change society for the better,because I'm only interested in changing it for the better,but in a clever way.
This bug has been resolved since 2.6.21 version of kernel. Thank you all: )