Mass closure: This bug has been untouched for more than six years, and is not
obviously still valid. Please reopen this bug or file a new report if you
continue to experience issues with current releases.
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Screen blanks and freezes after a few minutes of idling, possibly due
to broken DPMS
Status in xf86-video-siliconmotion:
Status in xorg package in Ubuntu:
Since switching to Gutsy to verify whether the packages I maintain
still operate as expected, I have noticed that after a few minutes of
idle operation, the screen goes blank and cannot be returned to
normal. The only way to get screen content again is to reboot, which
is possible either by pressing the ACPI-enabled power button or a
remote SSH connection. Broken DPMS is suspected, although I have no
way of confirming this.
Purposely downgrading xserver-xorg-core and anything that depend on
it, then pining it to that version, while keeping all the rest of the
packages to Gutsy versions solves it, which suggests something related
to X.org upgrade from 1.2 to 1.3 might be at play.
Note: someone on #ltsp mentions a similar situation using xserver-
xorg-video-amd, yet the exact same AMD driver doesn't exhibit this
behavior when compiled and used with earlier X releases.
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