which contradicts with the topic we are discussed. Regardless of the combination_mode, the log seems to work .. weird.
2011/5/9 Melchior FRANZ <melchior.franz at gmail.com> > * Joey Lee -- Monday 09 May 2011: > > The following is debug patch, and please add kernel parameter > > drm.debug=0x02 : > > The result is with acpi_osi=Linux: > > > boot phase: > [ 3.310274] [drm:intel_panel_get_backlight], get backlight val = 2890 > [ 3.310280] [drm:intel_panel_get_backlight], get backlight PWM = 2890 > [ 3.310615] [drm:intel_panel_get_backlight], get backlight val = 2890 > [ 3.310617] [drm:intel_panel_get_backlight], get backlight PWM = 2890 > [ 3.310619] [drm:intel_panel_set_backlight], set backlight PWM = 0 > [ 3.310622] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189401930 > [ 3.310624] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 3.310626] [drm:intel_panel_set_backlight], set backlight level = 0 > > [ 3.641522] [drm:intel_panel_set_backlight], set backlight PWM = 2890 > [ 3.641525] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189399040 > [ 3.641527] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 3.641529] [drm:intel_panel_set_backlight], set backlight level = 2890 > > [ 11.410563] video LNXVIDEO:01: Restoring backlight state > > > > brightness up: > [no output] > > > > brightness down: > [ 152.697127] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 152.697136] [drm:intel_panel_set_backlight], set backlight PWM = 283 > [ 152.697141] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189401930 > [ 152.697146] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 152.697150] [drm:intel_panel_set_backlight], set backlight level = 283 > > [ 166.720631] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 166.720640] [drm:intel_panel_set_backlight], set backlight PWM = 578 > [ 166.720645] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189399323 > [ 166.720649] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 166.720654] [drm:intel_panel_set_backlight], set backlight level = 578 > > [ 178.091776] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 178.091784] [drm:intel_panel_set_backlight], set backlight PWM = 861 > [ 178.091789] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189399618 > [ 178.091793] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 178.091797] [drm:intel_panel_set_backlight], set backlight level = 861 > > [ 188.888370] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 188.888379] [drm:intel_panel_set_backlight], set backlight PWM = 1156 > [ 188.888383] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189399901 > [ 188.888388] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 188.888392] [drm:intel_panel_set_backlight], set backlight level = 1156 > > [ 196.411657] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 196.411665] [drm:intel_panel_set_backlight], set backlight PWM = 1439 > [ 196.411670] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189400196 > [ 196.411674] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 196.411678] [drm:intel_panel_set_backlight], set backlight level = 1439 > > [ 201.256229] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 201.256238] [drm:intel_panel_set_backlight], set backlight PWM = 1734 > [ 201.256243] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189400479 > [ 201.256247] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 201.256252] [drm:intel_panel_set_backlight], set backlight level = 1734 > > [ 206.939838] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 206.939846] [drm:intel_panel_set_backlight], set backlight PWM = 2017 > [ 206.939851] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189400774 > [ 206.939856] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 206.939860] [drm:intel_panel_set_backlight], set backlight level = 2017 > > [ 213.779732] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 213.779740] [drm:intel_panel_set_backlight], set backlight PWM = 2312 > [ 213.779744] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189401057 > [ 213.779749] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 213.779753] [drm:intel_panel_set_backlight], set backlight level = 2312 > > [ 222.583806] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 222.583814] [drm:intel_panel_set_backlight], set backlight PWM = 2595 > [ 222.583819] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189401352 > [ 222.583824] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 222.583828] [drm:intel_panel_set_backlight], set backlight level = 2595 > > [ 229.345860] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 229.345870] [drm:intel_panel_set_backlight], set backlight PWM = 2595 > [ 229.345874] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189401635 > [ 229.345879] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 229.345883] [drm:intel_panel_set_backlight], set backlight level = 2595 > > > > brightness up: > [ 240.594464] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 240.594474] [drm:intel_panel_set_backlight], set backlight PWM = 2312 > [ 240.594479] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189401635 > [ 240.594483] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 240.594487] [drm:intel_panel_set_backlight], set backlight level = 2312 > > [ 240.816722] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 240.816730] [drm:intel_panel_set_backlight], set backlight PWM = 2017 > [ 240.816734] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189401352 > [ 240.816739] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 240.816743] [drm:intel_panel_set_backlight], set backlight level = 2017 > > [ 240.999973] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 240.999981] [drm:intel_panel_set_backlight], set backlight PWM = 1734 > [ 240.999985] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189401057 > [ 240.999990] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 240.999994] [drm:intel_panel_set_backlight], set backlight level = 1734 > > [ 241.212456] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 241.212464] [drm:intel_panel_set_backlight], set backlight PWM = 1439 > [ 241.212469] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189400774 > [ 241.212473] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 241.212478] [drm:intel_panel_set_backlight], set backlight level = 1439 > > [ 241.395611] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 241.395619] [drm:intel_panel_set_backlight], set backlight PWM = 1156 > [ 241.395624] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189400479 > [ 241.395628] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 241.395633] [drm:intel_panel_set_backlight], set backlight level = 1156 > > [ 242.039460] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 242.039470] [drm:intel_panel_set_backlight], set backlight PWM = 283 > [ 242.039475] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189400196 > [ 242.039479] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 242.039484] [drm:intel_panel_set_backlight], set backlight level = 283 > > [ 242.044495] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 242.044502] [drm:intel_panel_set_backlight], set backlight PWM = 283 > [ 242.044507] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189399323 > [ 242.044511] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 242.044515] [drm:intel_panel_set_backlight], set backlight level = 283 > > [ 242.077032] [drm:intel_panel_get_max_backlight], max backlight PWM = > 2890 > [ 242.077038] [drm:intel_panel_set_backlight], set backlight PWM = 0 > [ 242.077043] [drm:intel_panel_set_backlight], set backlight tmp(1) = > 189399323 > [ 242.077047] [drm:intel_panel_set_backlight], set backlight tmp(2) = > 189399040 > [ 242.077052] [drm:intel_panel_set_backlight], set backlight level = 0 > > m. > --bcaec51a8184c1a51004a2d58206 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable <br>From the log, it looks like is_backlight_combination_mode is evaluated = false which contradicts with the topic we are discussed. Regardless of the = combination_mode, the log seems to work ..=A0 weird.<br><br><div class=3D"g= mail_quote"> 2011/5/9 Melchior FRANZ <span dir=3D"ltr"><<a href=3D"mailto:melchior.fr= anz at gmail.com">melchior.franz at gmail.com</a>></span><br><blockquote class= =3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd= ing-left:1ex;"> * Joey Lee -- Monday 09 May 2011:<br> <div class=3D"im">> The following is debug patch, and please add kernel = parameter<br> > drm.debug=3D0x02 :<br> <br> </div>The result is with acpi_osi=3DLinux:<br> <br> <br> boot phase:<br> [ =A0 =A03.310274] [drm:intel_panel_get_backlight], get backlight val =3D 2= 890<br> [ =A0 =A03.310280] [drm:intel_panel_get_backlight], get backlight PWM =3D 2= 890<br> [ =A0 =A03.310615] [drm:intel_panel_get_backlight], get backlight val =3D 2= 890<br> [ =A0 =A03.310617] [drm:intel_panel_get_backlight], get backlight PWM =3D 2= 890<br> [ =A0 =A03.310619] [drm:intel_panel_set_backlight], set backlight PWM =3D 0= <br> [ =A0 =A03.310622] [drm:intel_panel_set_backlight], set backlight tmp(1) = =3D 189401930<br> [ =A0 =A03.310624] [drm:intel_panel_set_backlight], set backlight tmp(2) = =3D 189399040<br> [ =A0 =A03.310626] [drm:intel_panel_set_backlight], set backlight level =3D= 0<br> <br> [ =A0 =A03.641522] [drm:intel_panel_set_backlight], set backlight PWM =3D 2= 890<br> [ =A0 =A03.641525] [drm:intel_panel_set_backlight], set backlight tmp(1) = =3D 189399040<br> [ =A0 =A03.641527] [drm:intel_panel_set_backlight], set backlight tmp(2) = =3D 189399040<br> [ =A0 =A03.641529] [drm:intel_panel_set_backlight], set backlight level =3D= 2890<br> <br> [ =A0 11.410563] video LNXVIDEO:01: Restoring backlight state<br> <br> <br> <br> brightness up:<br> =A0 [no output]<br> <br> <br> <br> brightness down:<br> [ =A0152.697127] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0152.697136] [drm:intel_panel_set_backlight], set backlight PWM =3D 283= <br> [ =A0152.697141] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189401930<br> [ =A0152.697146] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0152.697150] [drm:intel_panel_set_backlight], set backlight level =3D 2= 83<br> <br> [ =A0166.720631] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0166.720640] [drm:intel_panel_set_backlight], set backlight PWM =3D 578= <br> [ =A0166.720645] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189399323<br> [ =A0166.720649] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0166.720654] [drm:intel_panel_set_backlight], set backlight level =3D 5= 78<br> <br> [ =A0178.091776] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0178.091784] [drm:intel_panel_set_backlight], set backlight PWM =3D 861= <br> [ =A0178.091789] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189399618<br> [ =A0178.091793] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0178.091797] [drm:intel_panel_set_backlight], set backlight level =3D 8= 61<br> <br> [ =A0188.888370] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0188.888379] [drm:intel_panel_set_backlight], set backlight PWM =3D 115= 6<br> [ =A0188.888383] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189399901<br> [ =A0188.888388] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0188.888392] [drm:intel_panel_set_backlight], set backlight level =3D 1= 156<br> <br> [ =A0196.411657] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0196.411665] [drm:intel_panel_set_backlight], set backlight PWM =3D 143= 9<br> [ =A0196.411670] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189400196<br> [ =A0196.411674] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0196.411678] [drm:intel_panel_set_backlight], set backlight level =3D 1= 439<br> <br> [ =A0201.256229] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0201.256238] [drm:intel_panel_set_backlight], set backlight PWM =3D 173= 4<br> [ =A0201.256243] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189400479<br> [ =A0201.256247] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0201.256252] [drm:intel_panel_set_backlight], set backlight level =3D 1= 734<br> <br> [ =A0206.939838] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0206.939846] [drm:intel_panel_set_backlight], set backlight PWM =3D 201= 7<br> [ =A0206.939851] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189400774<br> [ =A0206.939856] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0206.939860] [drm:intel_panel_set_backlight], set backlight level =3D 2= 017<br> <br> [ =A0213.779732] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0213.779740] [drm:intel_panel_set_backlight], set backlight PWM =3D 231= 2<br> [ =A0213.779744] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189401057<br> [ =A0213.779749] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0213.779753] [drm:intel_panel_set_backlight], set backlight level =3D 2= 312<br> <br> [ =A0222.583806] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0222.583814] [drm:intel_panel_set_backlight], set backlight PWM =3D 259= 5<br> [ =A0222.583819] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189401352<br> [ =A0222.583824] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0222.583828] [drm:intel_panel_set_backlight], set backlight level =3D 2= 595<br> <br> [ =A0229.345860] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0229.345870] [drm:intel_panel_set_backlight], set backlight PWM =3D 259= 5<br> [ =A0229.345874] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189401635<br> [ =A0229.345879] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0229.345883] [drm:intel_panel_set_backlight], set backlight level =3D 2= 595<br> <br> <br> <br> brightness up:<br> [ =A0240.594464] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0240.594474] [drm:intel_panel_set_backlight], set backlight PWM =3D 231= 2<br> [ =A0240.594479] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189401635<br> [ =A0240.594483] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0240.594487] [drm:intel_panel_set_backlight], set backlight level =3D 2= 312<br> <br> [ =A0240.816722] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0240.816730] [drm:intel_panel_set_backlight], set backlight PWM =3D 201= 7<br> [ =A0240.816734] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189401352<br> [ =A0240.816739] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0240.816743] [drm:intel_panel_set_backlight], set backlight level =3D 2= 017<br> <br> [ =A0240.999973] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0240.999981] [drm:intel_panel_set_backlight], set backlight PWM =3D 173= 4<br> [ =A0240.999985] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189401057<br> [ =A0240.999990] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0240.999994] [drm:intel_panel_set_backlight], set backlight level =3D 1= 734<br> <br> [ =A0241.212456] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0241.212464] [drm:intel_panel_set_backlight], set backlight PWM =3D 143= 9<br> [ =A0241.212469] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189400774<br> [ =A0241.212473] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0241.212478] [drm:intel_panel_set_backlight], set backlight level =3D 1= 439<br> <br> [ =A0241.395611] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0241.395619] [drm:intel_panel_set_backlight], set backlight PWM =3D 115= 6<br> [ =A0241.395624] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189400479<br> [ =A0241.395628] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0241.395633] [drm:intel_panel_set_backlight], set backlight level =3D 1= 156<br> <br> [ =A0242.039460] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0242.039470] [drm:intel_panel_set_backlight], set backlight PWM =3D 283= <br> [ =A0242.039475] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189400196<br> [ =A0242.039479] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0242.039484] [drm:intel_panel_set_backlight], set backlight level =3D 2= 83<br> <br> [ =A0242.044495] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0242.044502] [drm:intel_panel_set_backlight], set backlight PWM =3D 283= <br> [ =A0242.044507] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189399323<br> [ =A0242.044511] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0242.044515] [drm:intel_panel_set_backlight], set backlight level =3D 2= 83<br> <br> [ =A0242.077032] [drm:intel_panel_get_max_backlight], max backlight PWM =3D= 2890<br> [ =A0242.077038] [drm:intel_panel_set_backlight], set backlight PWM =3D 0<b= r> [ =A0242.077043] [drm:intel_panel_set_backlight], set backlight tmp(1) =3D = 189399323<br> [ =A0242.077047] [drm:intel_panel_set_backlight], set backlight tmp(2) =3D = 189399040<br> [ =A0242.077052] [drm:intel_panel_set_backlight], set backlight level =3D 0= <br> <font color=3D"#888888"><br> m.<br> </font></blockquote></div><br> --bcaec51a8184c1a51004a2d58206--
