On Mon, 06 Nov 2023 14:19:08 +0100, Bagas Sanjaya wrote: > > On Sat, Nov 04, 2023 at 01:01:56PM +0100, Jean-Jacques Hiblot wrote: > > > > > > On 29/10/2023 02:48, Bagas Sanjaya wrote: > > > On Thu, Oct 26, 2023 at 02:55:06PM +0700, Bagas Sanjaya wrote: > > > > The culprit seems to be commit c7d80059b086c4986cd994a1973ec7a5d75f8eea, which introduces a new 'color' attribute for led sysfs class devices. The problem is that the system76-acpi platform driver tries to create the exact same sysfs attribute itself for the system76_acpi::kbd_backlight device, leading to the conflict. For testing purposes, I've just rebuilt the kernel with the system76-apci color attribute renamed to kb_color, and that fixes the issue. > > > > > > Jean-Jacques Hiblot, would you like to take a look on this regression, > > > since you authored the culprit? > > Hi, > > > > The offending commit stores the color in struct led_classdev and exposes it > > via sysfs. It was part of a series that create a RGB leds from multiple > > single-color LEDs. for this series, we need the color information but we > > don't really need to expose it it via sysfs. In order to fix the issue, we > > can remove the 'color' attribute from the sysfs. > > > > OK, see you in the patch! Is there a patch available? This bug hits for a few Logitech keyboard models, too, and it makes 6.6 kernel unsable for them, as hid-lg-g15 driver probe fails due to this bug: https://bugzilla.kernel.org/show_bug.cgi?id=218155 We need a quick fix for 6.6.x. Thanks! Takashi
