https://bugzilla.novell.com/show_bug.cgi?id=770993 https://bugzilla.novell.com/show_bug.cgi?id=770993#c2 --- Comment #2 from Michal Veselenyi 2012-07-12 08:24:50 UTC --- Note: I'll attach another hwinfo after upgrading to kernel 3.4.4 which I saw is already available, probably today. I doubt it will help. BTW: anybody knows which driver manages the brightness? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=770993 https://bugzilla.novell.com/show_bug.cgi?id=770993#c4 --- Comment #4 from Michal Veselenyi 2012-07-13 08:49:26 UTC --- I'm running KDE4 Installing (manually) the nvidia driver didn't help for backlight. I fixed the problem partially with kernel options: acpi_osi=Linux acpi_backlight=vendor (I'll try also the legacy option) This causes at least that the backlight is unchanged during boot and not brought to minimum brightness and stay that way (it really hut your eyes on min brightness) But /sys/class/backlight is still empty. I'll try with 12.2 RC 1, as it is now out (cool) Also I'll compare with my 11.3 installation, where it worked (notably look at what's inside /sys/class/backlight and what kernel module was there). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=770993 https://bugzilla.novell.com/show_bug.cgi?id=770993#c6 --- Comment #6 from Michal Veselenyi 2012-07-16 17:47:59 UTC --- Created an attachment (id=498773) --> (http://bugzilla.novell.com/attachment.cgi?id=498773) lsmod output from opensuse 11.3 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=770993 https://bugzilla.novell.com/show_bug.cgi?id=770993#c Michal Veselenyi changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|Brightness adjusting not |Brightness (backlight) |working on laptop in 12.2b2 |adjusting not working on | |laptop in 12.2b2 -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=770993 https://bugzilla.novell.com/show_bug.cgi?id=770993#c9 --- Comment #9 from Michal Veselenyi 2012-07-16 18:56:31 UTC --- Back to 12.2b2 The module video is loaded. Unloading or loading it does absolutely nothing (/sys/class/backlight is always empty). I've only found in dmesg: [ 8.670586] video: probe of LNXVIDEO:00 failed with error -5 When un/loading the video module, there is further no such message. It is only in dmesg's history. * The 'acpi_osi=Linux' kernel option seems to have no effect * The 'acpi_backlight=vendor' leaves the brightness at bootloader level and cannot change the brightness further in booted system * The 'acpi_backlight=legacy' restores the default 12.2b2 behaviour: it dims backlight to minimum during boot and leaves it at that level. Cannot change it further. Need to poweroff and increase the brightness when in bootloader. Plain reboot doesn't help - brightness is not adjustable even in bootloader. Note: I tried this all after upgrading to 3.4.4-2-desktop SMP PREEMPT x86_64 In 11.3, /var/log/messages I have only (after wakeup): [ 1529.359389] video LNXVIDEO:00: Restoring backlight state Looks like some problem in acpi/video for me. At least the dimming did work, once at boot. I'll now try RC1, but I doubt anything changes there. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=770993 https://bugzilla.novell.com/show_bug.cgi?id=770993#c Stefan Dirsch changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=770993 https://bugzilla.novell.com/show_bug.cgi?id=770993#c12 Stefan Dirsch changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED --- Comment #12 from Stefan Dirsch 2012-09-02 09:16:11 UTC --- Ok. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.