Comment on this change optional. If it works, please report back to me with the DMI data from your laptop so this can be added to acer-wmi. When I remove the wireless card or reinstall the old original one modprobing acer-wmi finishes immediately and succesfully with no hangs. Changed in linux Ubuntu: The maximum brightness level is usually 15, but on some newer laptops it’s 10 this is again autodetected. Intel Corporation WiFi Link [ The screen freezes and the fans start spinning very hard.

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Linux Kernel Driver DataBase: CONFIG_ACER_WMI: Acer WMI Laptop Extras (EXPERIMENTAL)

Penalver penalvch wrote on Intel Corporation WiFi Link [ I tested with – v3. No Asset Tag dmi. Peter de Kraker peterdekraker wrote on For regression testing purposes, could you please test Precise via http: No functionality appears to be lost. See full activity log. wcer


This change was made by a bot. Original card with no problems: Function bitmap for Communication Device: If you are unable to test the mainline kernel, for example it will not boot, please add the tag: You need to log in to change this bug’s status. Bluetooth is autodetected by acer-wmi, so if you do not have a bluetooth module installed in your laptop, this file won’t exist please be aware that it is quite common for Acer not to fit bluetooth to their laptops – so just because you have a bluetooth button on the laptop, doesn’t mean that bluetooth is installed.


Status changed to Confirmed.

Linux source code: Documentation/laptops/ (v) – Bootlin

Despite this, what could be expected if it’s not a BIOS bug, is a quirk of some sort that minimizes or eliminates the 10 second delay.

Once testing of the upstream kernel is complete, please mark this bug as “Confirmed”.

Status changed to Confirmed 5. Changed in linux Ubuntu: Solid light, blinks off when transmitting Wireless radio control is unconditionally enabled – all Acer laptops that support acer-wmi come with built-in wireless. When you disable bluetooth, you get the reverse – a USB device disconnect event, followed by the device disappearing again.

Ubuntu hangs, and reacts normally after 10 seconds. You can learn more about this functionality at https: Penalver penalvch on So the behaviour of the wireless LED, once you enable the radio, will depend on your hardware and driver combination.

Maybe it should not be loaded with this laptop version, lapotp it has a bug in it. When I remove the wireless card or reinstall the old original one modprobing acer-wmi finishes immediately and succesfull with no hangs. Now ubuntu boots as it should without hanging.


Brightness must be controlled by acpi video driver [ So far, no-one in possession of an Acer laptop with 3G built-in appears to have tried Linux, or reported back, so we don’t have any information on this. The screen freezes and the fans start spinning very hard.

Comment on this change optional. I don’t know now if this is still a valid bug, since maybe the card is not fully supported by the laptop while it works ok besides this issue.

Forgot to mention that I indeed also had tested it with v3. When modprobing this module after boot the same symptoms occur. Peter de Kraker, thank you for reporting this and helping make Ubuntu better.