search for: actual_bright

...raphics cards (I have an Nvidia 9600M GT and a 9400M, both are recognized by nouveau but only the 9400M is ever used) Linux uses for the framebuffer or X uses for the output. I have /sys/class/backlight/nv_backlight, and writting to nv_backlight/brightness does change the value in nv_backlight/actual_brightness, but no actual screen changes occur. I'm using the in-tree staging version of nouveau, so I wasn't sure which ML this should go to. Cheers, Shea Levy

...+ +static int +drmmode_backlight_get(xf86OutputPtr output) +{ + drmmode_output_private_ptr drmmode_output = output->driver_private; + char path[BACKLIGHT_PATH_LEN], val[BACKLIGHT_VALUE_LEN]; + int fd, level; + + if (!drmmode_output->backlight_iface) + return -1; + + sprintf(path, "%s/%s/actual_brightness", + BACKLIGHT_CLASS, drmmode_output->backlight_iface); + fd = open(path, O_RDONLY); + if (fd == -1) { + xf86DrvMsg(output->scrn->scrnIndex, X_ERROR, + "failed to open %s for backlight control: %s\n", + path, strerror(errno)); + r...

https://bugs.freedesktop.org/show_bug.cgi?id=31920 Summary: Brightness control is erratic (/sys/class/backlight/nv_backlight/max_brightness is wrong) Product: xorg Version: git Platform: Other OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium

https://bugs.freedesktop.org/show_bug.cgi?id=39550 Summary: Brightness stuck to low value after suspend/resume Product: xorg Version: unspecified Platform: Other OS/Version: All Status: NEW Severity: normal Priority: medium Component: Driver/nouveau AssignedTo: nouveau at lists.freedesktop.org