> > > On 01/07/2010 12:42 AM, Johan Hovold wrote: > > > >> Yeap. The fix uncovered a bug in your driver. I haven't heard of > > > >> problems with the other drm drivers. > > > >> > > > >>> The backlight is handled via the DRI driver I assume. At least > > > >>> i9xx_crtc_dpms is called on powerdown. > > > >> > > > >> Can you post your dmesg and kernel config. > > > > > > [snip] > > > > > > Adding the Intel DRM people in CC as well. I have the same issue > > > with my GM45. > > > > Okay I looked at the code to figure out what is happening and why > > only this driver has problems. The problem is that the framebuffer > > layer expects the backlight to be a seperate device. The reason being > > is that some embedded systems will use a gpio backlight. That way > > power management for a graphics card/backlight has 3 seperate states. > > Currently the intel DRM driver treats the backlight as being apart of > > the encoder. Jesse do you have objections to having the intel driver > > expose a backlight device. The bonus of that is the user can also set > > the backlight levels. > > On Intel we usually expect the backlight to be exposed by ACPI or a > platform driver. On recent platforms, the ACPI driver will actually > send requests to the gfx driver to do the actual register writes to > adjust the backlight, but it's still ACPI driven. > > Maybe we just need to wire up the fb backlight hooks appropriately?
Yeap. I can have patch ready for you this weekend. I lack the hardware to test it tho. Never been able to find a intel pci card that is not built into the motherboard. ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
