Bug 13376

Summary:	Buggy BCM - emachines E510
Product:	ACPI	Reporter:	Tulio Magno Quites Machado Filho (tuliom)
Component:	BIOS	Assignee:	Zhang Rui (rui.zhang)
Status:	CLOSED PATCH_ALREADY_AVAILABLE
Severity:	normal	CC:	lenb, tuliom
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.30-rc6	Subsystem:
Regression:	Yes	Bisected commit-id:
Attachments:	dmidecode output acpidump output patch: dmi check for eMachines E510 patch: dmi check for eMachines E510

Description Tulio Magno Quites Machado Filho 2009-05-24 21:36:15 UTC

This seems the same problem as Bug 13121.

When pressing one of brighteness keys, I get this:
[76607.890373] ACPI: Failed to switch the brightness

I am sending the outputs of dmidecode and acpidump.

Comment 1 Tulio Magno Quites Machado Filho 2009-05-24 21:37:52 UTC

Created attachment 21521 [details]
dmidecode output

Comment 2 Tulio Magno Quites Machado Filho 2009-05-24 21:38:29 UTC

Created attachment 21522 [details]
acpidump output

Comment 3 Zhang Rui 2009-05-25 03:11:30 UTC

Created attachment 21524 [details]
patch: dmi check for eMachines E510

please try this patch and see if it helps.

Comment 4 Tulio Magno Quites Machado Filho 2009-05-25 07:13:07 UTC

It does not work.

And I've got this from dmesg when starting the system:
[   37.571501] ACPI Error (video-0537): Current brightness invalid [20090320]

And this when pressing the keys:
[   84.964319] ACPI: Failed to switch the brightness

Comment 5 Zhang Rui 2009-05-26 02:15:33 UTC

Created attachment 21554 [details]
patch: dmi check for eMachines E510

Comment 6 Tulio Magno Quites Machado Filho 2009-05-26 11:55:09 UTC

It works now.
Thanks!

Comment 7 Len Brown 2009-05-27 03:35:54 UTC

patch in comment #5 applied to acpi tree

Comment 8 Len Brown 2009-06-01 19:53:42 UTC

34ac272b3aaef11a91e19a72f3ac5772a96ffbc5
ACPI: video: DMI workaround broken eMachines E510 BIOS enabling display brightness

shipped after linux-2.6.30-rc7-git4, so it should be present in -rc8

closed.