On Friday 19 July 2019 12:12:53 Slávek Banko wrote: > Dne út 16. července 2019 andre_debian@xxxxxxxxxxxxxx napsal(a): > > Hello, > > ls -al /sys/class//backlight/ > > intel_backlight -> > ../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight > > ls -al /sys/class/backlight/acpi_video0/ > > no file > > xbacklight is installed. > > To adjust the brightness : > > Menu => Trinity Configuration Center > > => Périphériques => Hardware Device Manager > > => Backlight => Intel HD Graphics 520 > > and I can adjust the brightness from 0 to 100%, > > but the value is not keeped if I close the session. > > The default value = 62% > Hi André, > you can install TDE Powersave and then adjust the brightness there. > Cheers Hello Slavek, It's what I did, "tde-powersave" installed. Where to adjust the brightness ? Only this solution : Menu => Trinity Configuration Center =>Peripheral devices => Hardware Device Manager => Backlight => Intel HD Graphics 520 I can adjust from 0 to 100%, but the value is not saved if I close the session or reboot. The default value = 62%. When the computer pause begins (45min), the brightness becomes 5%, so low that I have to reboot the computer. My video card is Intel HD 520, but not dedicated, works with the processor and the RAM. Before, I could do that by "left button mouse", Desktop configuration => Display => Energy Control. But, this possiblity has disappeared, only gamma configuration. With another laptop, dedicated video card, (nvidia or ATI), it works fine. Thanks, regards, André --------------------------------------------------------------------- To unsubscribe, e-mail: trinity-users-unsubscribe@xxxxxxxxxxxxxxxxxxxxxxxxxx For additional commands, e-mail: trinity-users-help@xxxxxxxxxxxxxxxxxxxxxxxxxx Read list messages on the web archive: http://trinity-users.pearsoncomputing.net/ Please remember not to top-post: http://trinity.pearsoncomputing.net/mailing_lists/#top-posting