ubuntu-x-swat team mailing list archive

[pschonmann <704663@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Binary package hint: xserver-xorg-video-intel

Hi, when i want to change refresh rate from 50 to 60 hz then screen
decrease brightness. It was caused in playing freedroidrpg but you can
simulate it via Monitor preferences. When something trying estimate
screen modes, then screen is little bit black, because brightness is
lowered by too many steps.

How to reproduce:

Go to monitor preferences
10 Change refresh rate from 50 to 60 or vice versa
20 apply settings
30 goto 10

if youre enough to see diference unloop yourself.

Im using latest PPA xorg-edgers
notebook Lenovo T61
natty

some info from x.org log

[ 12931.831] (II) intel(0): EDID vendor "LEN", prod id 16435
[ 12931.831] (II) intel(0): Printing DDC gathered Modelines:
[ 12931.831] (II) intel(0): Modeline "1440x900"x0.0   97.78  1440 1488 1520 1760  900 903 909 926 -hsync -vsync (55.6 kHz)
[ 12931.831] (II) intel(0): Modeline "1440x900"x0.0   81.49  1440 1488 1520 1760  900 903 909 926 -hsync -vsync (46.3 kHz)
[ 12931.832] (II) intel(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz)
[ 12931.832] (II) intel(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz)
[ 12931.832] (II) intel(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz)
[ 12931.891] (II) intel(0): EDID vendor "LEN", prod id 16435
[ 12931.891] (II) intel(0): Printing DDC gathered Modelines:
[ 12931.891] (II) intel(0): Modeline "1440x900"x0.0   97.78  1440 1488 1520 1760  900 903 909 926 -hsync -vsync (55.6 kHz)
[ 12931.891] (II) intel(0): Modeline "1440x900"x0.0   81.49  1440 1488 1520 1760  900 903 909 926 -hsync -vsync (46.3 kHz)
[ 12931.891] (II) intel(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz)
[ 12931.891] (II) intel(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz)
[ 12931.891] (II) intel(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz)
[ 12938.132] (II) intel(0): EDID vendor "LEN", prod id 16435
[ 12938.132] (II) intel(0): Printing DDC gathered Modelines:
[ 12938.132] (II) intel(0): Modeline "1440x900"x0.0   97.78  1440 1488 1520 1760  900 903 909 926 -hsync -vsync (55.6 kHz)
[ 12938.132] (II) intel(0): Modeline "1440x900"x0.0   81.49  1440 1488 1520 1760  900 903 909 926 -hsync -vsync (46.3 kHz)
[ 12938.133] (II) intel(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz)
[ 12938.133] (II) intel(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz)
[ 12938.133] (II) intel(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz)
[ 12938.191] (II) intel(0): EDID vendor "LEN", prod id 16435
[ 12938.191] (II) intel(0): Printing DDC gathered Modelines:
[ 12938.191] (II) intel(0): Modeline "1440x900"x0.0   97.78  1440 1488 1520 1760  900 903 909 926 -hsync -vsync (55.6 kHz)
[ 12938.191] (II) intel(0): Modeline "1440x900"x0.0   81.49  1440 1488 1520 1760  900 903 909 926 -hsync -vsync (46.3 kHz)
[ 12938.191] (II) intel(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz)
[ 12938.191] (II) intel(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz)
[ 12938.191] (II) intel(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz)

I was unable to report it with more logs or any other tools via ubuntu-
bug tool. It said that xserver-xorg-video-intel isnt official ubuntu
package - maybe reason its from PPA

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/704663

Title:
  [i965gm] Brightness changed