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1. #Toshiba satellite brightness control not working update
2. #Toshiba satellite brightness control not working software

#Toshiba satellite brightness control not working software

The Fn keys work and it can all be changed in the software settings. However, in Kubuntu 11.10 (upgraded from 11.04 and possibly from 10.10 further back) on a Toshiba Satellite T135-S1310, adding "nomodeset acpi_backlight=vendor" to the GRUB_CMDLINE_LINUX_DEFAULT line did not work (as expected, and as noted previously in the thread, nomodeset just freaked everything out), but removing nomodeset and just leaving the vendor part has at last worked perfectly. I had simply gotten used to having a full-on backlight and the related crappier battery life, which was an everpresent reminder of things not being perfect. I had tried getting this to work on a few occasions previously, even to the point of getting into the deeper innards here: Test -f /tmp/brightness || echo 6 > /tmp/brightness Test -f /tmp/brightness || echo 99 > /tmp/brightness perhaps adding the program to the sudoers list with your username would be acceptable. chmod 4755 works, but of course it creates quite a potential security hole. Note: for this to work, one must run setpci with root permissions. I am sure the bash scripts aren't perfect and could be easily modified to be more efficient, bit this works great for my purposes. I used the Compizconfig settings manager's commands section to bind each script to the brightness keys. I took some of the previous bits of advice that I found around and I made scripts that I bound to the fn+brightnessup and fn+brightnessdown keys. This will dim the brightness when laptop goes on battery, an brighten the screen when the AC adapter is connected. As root typeĮcho action=/etc/acpi/brightness.sh > /etc/acpi/events/batteryĮcho action=/etc/acpi/brightness.sh > /etc/acpi/events/ac Now we have to edit the events to trigger brightness.sh. Logger "ACPI: AC adapter is off-line, brightness down."

Logger "ACPI: AC adapter is on-line, brightness up." This can be used in ACPI events to control the brightness according to the state of the AC adapter.Ĭopy paste the lines below to brightness.sh: You can manually adjust the brightness with setpci: This workaround will not allow you to adjust the brightness with the fn keys. i'm such a newbie to linux, maybe someone could explain to me why? is it a bug?Īpplying "nomodeset acpi_backlight=vendor" to grub, will crash Xorg, since the most recent version of Xorg doesn’t support this string.įor the T130 I found this workaround, witch will dim the screen brightness and extend the battery time. Hope this could help someone, even though i'm not sure what i am doing.

Menuentry “Ubuntu, Linux 2.6.31-14-generic” reboot, it works! both in gnome and KDE! ignoring "DO NOT EDIT THIS FILE", append "nomodeset acpi_backlight=vendor", so the entry changes to: changing in menu.lst has no effect either)

#Toshiba satellite brightness control not working update

it just doesn't change the \boot\grub\grub.cfg (I found this problem because I can't update Kernel too. Then after a lot of reading I figured out the update-grub doesn't work to me at all. I append that line to the GRUB_CMDLINE_LINUX_DEFAULT there was no effect.