FS#15239 - [kernel26] No ACPI on Vaio FW series

Attached to Project: Arch Linux
Opened by Olivier (litemotiv) - Tuesday, 23 June 2009, 21:31 GMT
Last edited by Roman Kyrylych (Romashka) - Sunday, 04 October 2009, 23:01 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Tobias Powalowski (tpowa)
Architecture All
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

kernel 2.6.30 introduced an ACPI regression that affects Sony Vaio FW laptops, one of the things it causes is missing /proc/video/ entries (screen brightness control etc).

Log line: [Firmware Bug]: ACPI: ACPI brightness control misses _BQC function

A possible fix has been released: http://patchwork.kernel.org/patch/16469

The patch above is not present in the current package 2.6.30-5, hopefully it can be included in -6?
This task depends upon

Closed by  Roman Kyrylych (Romashka)
Sunday, 04 October 2009, 23:01 GMT
Reason for closing:  Won't implement
Additional comments about closing:  Unless the feature will be accepted upstream (see  FS#15767 )
Comment by Olivier (litemotiv) - Wednesday, 24 June 2009, 18:05 GMT
oh crap, while the report/patch above is still valid for vaio ACPI keys, i found that it isn't the cause for the missing /proc/video entries:

[Wiki] "Note : DSDT hooks for mkinitcpio have been removed as of kernel 2.6.30, please compile dsdt directly into the kernel"

i'm using a custom dsdt..

why was it removed? this is really going to make my life a lot harder.. :-/
Comment by Greg (dolby) - Wednesday, 24 June 2009, 18:27 GMT
Do you read the news? http://www.archlinux.org/news/451/
Comment by Olivier (litemotiv) - Wednesday, 24 June 2009, 18:40 GMT
apparently i don't ;-)

thanks, i'll better keep a lookout for a patch showing up somewhere..

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