Xgamma might be "obsolete" like you say, but here it works great.
Regards, Damian 2014-04-27 7:38 GMT-03:00 PK <[email protected]>: > @ Liviu and Benedek: thanks for sharing these useful workarounds! > > Both of you could help further, by reporting this on Launchpad.... There are > probably more people with your hardware, so a bug report would serve two > purposes: it might help to solve the bug, and if not, it might help others > with the workaround. > > Regards, Pjotr. > > > 2014-04-27 11:51 GMT+02:00 Benedek Imre <[email protected]>: > >> Try this solution: >> http://itsfoss.com/fix-brightness-ubuntu-1310/ >> It worked on my Dell Inspiron laptop with Intel graphics. >> Good luck! >> >> -- Eredeti üzenet -- >> Feladó: Liviu Andronic <[email protected]> >> Címzett: Xubuntu Development Discussion <[email protected]> >> Elküldve: 2014. április 27. 2:28 >> Tárgy : Re: changing screen brightness broken in Xubuntu (12.04 and 14.04) >> >> >> On Sat, Apr 26, 2014 at 10:26 AM, PK <[email protected]> wrote: >> > Try this: >> > >> > https://sites.google.com/site/easylinuxtipsproject/display#TOC-Brightness-of-the-display-is-wrong-and-not-adjustable >> > >> > Those tweaks work fine on my machines. :-) >> > >> > Not really a Linux error, this; it has to do with BIOS / UEFI that's not >> > standard-compliant. >> > >> Thanks for the tips, but unfortunately none worked for me. I tried >> several workarounds. >> - with no obvious success: >> GRUB_CMDLINE_LINUX="acpi_osi=Linux" >> >> and >> update-grub >> >> - the following has no effect: >> xbacklight -set 20 >> >> - and neither does this help: >> root@liv-inspiron:/home/geek# lspci | grep -i vga >> 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT >> Integrated Graphics Controller (rev 09) >> 03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. >> [AMD/ATI] Venus PRO [Radeon HD 8850M] (rev ff) >> root@liv-inspiron:/home/geek# setpci -s 00:02.0 F4.B=20 >> root@liv-inspiron:/home/geek# setpci -s 03:00.0 F4.B=20 >> >> >> Any ideas on what else could be wrong? Thanks, >> Liviu >> >> > Regards, Pjotr. >> > >> > >> > 2014-04-26 9:56 GMT+02:00 Liviu Andronic <[email protected]>: >> >> >> >> Dear all, >> >> For several releases now (12.04 and 14.04) and across several machines >> >> (Lenovo 32-bit and Dell 64-bit), changing brightness settings is >> >> broken. It doesn't work whether I use the laptop buttons to modify >> >> screen brightness (to get the notification changing the percentage, >> >> but actual brightness NOT move one bit) or the Brightness panel-plugin >> >> from xfce4-power-manager (nothing really happens). >> >> >> >> Is this a known issue (or should I report it to Launchpad)? But more >> >> importantly, how can I change screen brightness in Xubuntu (install >> >> gnome-power-manager, etc.)? >> >> >> >> Regards, >> >> Liviu >> >> >> >> -- >> >> Do you know how to read? >> >> http://www.alienetworks.com/srtest.cfm >> >> http://goodies.xfce.org/projects/applications/xfce4-dict#speed-reader >> >> Do you know how to write? >> >> http://garbl.home.comcast.net/~garbl/stylemanual/e.htm#e-mail >> >> >> >> -- >> >> xubuntu-devel mailing list >> >> [email protected] >> >> https://lists.ubuntu.com/mailman/listinfo/xubuntu-devel >> > >> > >> > >> > -- >> > xubuntu-devel mailing list >> > [email protected] >> > https://lists.ubuntu.com/mailman/listinfo/xubuntu-devel >> > >> >> >> >> -- >> Do you know how to read? >> http://www.alienetworks.com/srtest.cfm >> http://goodies.xfce.org/projects/applications/xfce4-dict#speed-reader >> Do you know how to write? >> http://garbl.home.comcast.net/~garbl/stylemanual/e.htm#e-mail >> >> -- >> xubuntu-devel mailing list >> [email protected] >> https://lists.ubuntu.com/mailman/listinfo/xubuntu-devel >> >> >> -- >> xubuntu-devel mailing list >> [email protected] >> https://lists.ubuntu.com/mailman/listinfo/xubuntu-devel >> > > > -- > xubuntu-devel mailing list > [email protected] > https://lists.ubuntu.com/mailman/listinfo/xubuntu-devel > -- xubuntu-devel mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/xubuntu-devel
