On Wed, 26 Jul 2017, "Gu, HailinX" <hailinx.gu@xxxxxxxxx> wrote: > Hi~ all, > I try to run the test pm_backlight. But there is an skip with the log as following. > > > > ```` > > IGT-Version: 1.19-g4258cc8e (x86_64) (Linux: 4.10.0 x86_64) Test > > requirement not met in function __real_main154, file pm_backlight.c:163: > > Test requirement: !(backlight_read(&old, "brightness")) Last errno: 2, > > No such file or directory > ```` > > By my check there is not a file in dir /sys/class/backlight/ > > I wander is there any kconfig or boot parameters need to set? > I have tried adding "acpi_ osi=Linux acpi_backlight=vendor" to GRUB config, but it's same as before. Please post the dmesg, with drm.debug=14, and kernel config. BR, Jani. -- Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
