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Message-ID: <288db372-9797-540f-e8bd-794a23648573@gmail.com> Date: Fri, 26 May 2023 20:46:32 +0700 From: Bagas Sanjaya <bagasdotme@...il.com> To: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux Regressions <regressions@...ts.linux.dev>, DRI Development List <dri-devel@...ts.freedesktop.org>, Linux ARM <linux-arm-kernel@...ts.infradead.org>, Linux Samsung SoC Support <linux-samsung-soc@...r.kernel.org> Cc: Lee Jones <lee@...nel.org>, Daniel Thompson <daniel.thompson@...aro.org>, Jingoo Han <jingoohan1@...il.com>, Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, Andrew <quark@...root.org>, Mika Westerberg <mika.westerberg@...ux.intel.com>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Geert Uytterhoeven <geert+renesas@...der.be> Subject: Fwd: Does not work backlight on Chromebook XE303C12 with Kernel version 6.3.4 Hi, I notice a regression report on Bugzilla [1]. Quoting from it: > I did check it by flashlight. Even with all available backlights drivers compiled as modules it does not work. With Kernel version 5.15.106 backlight works fine. > Kernels for Chomebook uses dtb files that have some backlight config set (used gpio), like exynos5250-snow-common.dtsi and dmesg of 6.3.4 gives some gpio warnings. Maybe cause in it. See bugzilla for the full thread and attached dmesg & kernel config. Anyway, I'm adding it to regzbot: #regzbot introduced: v5.15..v6.3 https://bugzilla.kernel.org/show_bug.cgi?id=217489 #regzbot title: Chromebook XE303C12 backlight stopped working with gpio warnings Thanks. [1]: https://bugzilla.kernel.org/show_bug.cgi?id=217489 -- An old man doll... just what I always wanted! - Clara
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