Red Hat Bugzilla – Bug 450146
Dell Latitude D620 needs dpms_on quirk for nVidia graphics
Last modified: 2013-03-05 22:56:19 EST
I recently acquired a Dell Latitude D620 with nVidia graphics (specifically, it
has a "nVidia Corporation G72M [Quadro NVS 110M/GeForce Go 7300] (rev a1)").
I'm using the standard F9 "nv" video driver; I am *NOT* using nVidia's binary
Both suspending/resuming and warm [un]docking work, but very occasionally (maybe
about 10% of the time), the LCD screen will fail to turn back on after a warm
[un]dock. The system is otherwise fine; I can ssh into it remotely.
About a week ago, I started using the "dpms_on" quirk (in addition to the
vbe_post and vbemode_restore quirks). Since that time, I haven't had a single
instance of the screen not turning back on after a suspend/resume or warm [un]dock.
Thus, I suspect D620 laptops with nVidia graphics need the dpms_on quirk. Since
this quirk should cause no harm (even if it turns out it isn't necessary),
please consider adding it to hal-info.
After a few more months of using the dpms_on quirk, I've yet to see an instance of the "LCD doesn't turn back on" bug.
Could you push this upstream, please? (I'm getting tired of manually hacking /usr/share/hal/fdi/information/10freedesktop/20-video-quirk-pm-dell.fdi every time it gets overwritten...)
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