https://bugs.freedesktop.org/show_bug.cgi?id=29685
Summary: DPMS does not turn off LCD backlight on NV18 [GeForce4
MX with AGP8X (Mac)]
Product: xorg
Version: 7.5
Platform: PowerPC
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Driver/nouveau
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
I'm using bug #19356, which describes the same problem with a different iMac,
as an orientation for my bug description.
Expected:
$ xset dpms force standby;
should turn off LCD backlight.
Actual Result:
Screen is black, but LCD backlight stays on.
Workaround:
Use nv driver.
Some information on my system is already in bug #29455 (video bios dump,
register dump, "lspci -vvnn" output).
I downloaded, compiled, and ran radeontool, as was described in bug #19356:
nouveau driver:
DPMS on:
0x0060081c 0xa2565051 (-1571401647)
0x000010f0 0x84830535 (-2071788235)
DPMS off:
0x0060081c 0xa2565055 (-1571401643)
0x000010f0 0x84830535 (-2071788235)
nv driver:
DPMS on:
0x0060081c 0xa2565051 (-1571401647)
0x000010f0 0x84550535 (-2074802891)
DPMS off:
0x0060081c 0xa2565050 (-1571401648)
0x000010f0 0x04550535 (72680757)
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