Riza Dindir composed on 2021-11-11 10:16 (UTC+0300): >> On Wed, Nov 10, 2021 at 10:15:18AM +0300, Riza Dindir wrote:
>>> I woukd like to know if I can adjust the screen brightness when using the >>> framebuffer device on xorg? > I am using gop, and a framebuffer. When i try to use the xrandr, it says > "gamma is set to 0", or "failed to get size of gamma for output default". > I can set the gamma uaing xgamma and in the xorg.conf file. If you upload /var/log/Xorg.0.log to a pastebin and share its URL someone may spot a clue to your obstacle. -- Evolution as taught in public schools is, like religion, based on faith, not based on science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata