Zhang Rui wrote: >> It seems that acpi_video_bus_add function is invoked twice and, the >> second time, it fails (maybe it is supposed to be invoked twice...). >> > There are two ACPI video bus devices both named "VGA" in the ACPI > namespace, and each of them tries to create an entry "VGA" > under /proc/acpi/video/. > that's why this message is printed out. Sorry about my ignorance on the topic but... does this mean I do actually have 2 devices? If this is true, then I should actually have "VGA1" and "VGA2" dirs in /proc, right? >> Please let me know whether you need any additional information to help >> me solving this problem. > There is a patch from Matthew that should solve this problem, which has > already hit the acpi test tree. > it would be great if you can get the source code and give it a try. :) > > how to get the source code: >> git-clone git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-2.6 acpi_test >> git-branch -r >> git-branch --track test origin/test >> git-checkout test Ok, tried this (or similar...) and it seems to be working just fine. Or, at least, no more error message from kernel. Also, in /proc/acpi/video only one directory 'VGA' is being created. Here's the relevante dmesg part: [ 14.657009] ACPI: AC Adapter [ACAD] (on-line) [ 14.661005] acpi device:04: registered as cooling_device2 [ 14.664019] input: Video Bus as /class/input/input4 [ 14.716892] ACPI: Video Device [VGA] (multi-head: yes rom: no post: no) Thanks! -- Luis -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html