From: Jani Nikula <jani.nikula@linux.intel.com>
To: "Gu, HailinX" <hailinx.gu@intel.com>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>
Cc: "Li, Philip" <philip.li@intel.com>,
"Li, ZhijianX" <zhijianx.li@intel.com>
Subject: Re: [intel-gfx][i-g-t][help]can't read the backlight
Date: Fri, 04 Aug 2017 15:56:19 +0300 [thread overview]
Message-ID: <87mv7ffq4s.fsf@nikula.org> (raw)
In-Reply-To: <3C4C9E317E49F840AE61D81CCBCF62AD8F7DFE@SHSMSX101.ccr.corp.intel.com>
On Wed, 26 Jul 2017, "Gu, HailinX" <hailinx.gu@intel.com> 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
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prev parent reply other threads:[~2017-08-04 12:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-26 10:49 [intel-gfx][i-g-t][help]can't read the backlight Gu, HailinX
2017-08-04 12:56 ` Jani Nikula [this message]
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