https://bugzilla.kernel.org/show_bug.cgi?id=84111
Bug ID: 84111
Summary: HP Pavilion dv6-3182 shows at least one additional
backlight interface
Product: ACPI
Version: 2.5
Kernel Version: 3.13.0
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Video
Assignee: [email protected]
Reporter: [email protected]
Regression: No
My HP Pavilion dv6-3182 laptop shows three interfaces in /sys/class/backlight:
acpi_video0, acpi_video1 and radeon_bl0.
radeon_bl0 only appears when the radeon driver is used (i.e. not if fglrx is
used).
Both acpi_video0 and radeon_bl0 control the brightness of the screen, but
acpi_video0 has 11 brightness levels whilst radeon_bl0 has 256.
As far as I know, acpi_video1 has no purpose. Writing to its brightness file
doesn't do anything, but it causes problems to desktop environments that choose
it over the other options.
--
You are receiving this mail because:
You are watching the assignee of the bug.
------------------------------------------------------------------------------
Want excitement?
Manually upgrade your production database.
When you want reliability, choose Perforce
Perforce version control. Predictably reliable.
http://pubads.g.doubleclick.net/gampad/clk?id=157508191&iu=/4140/ostg.clktrk
_______________________________________________
acpi-bugzilla mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
