Kernel Bug Tracker – Bug 10221
Intel IGD OpRegion support in Linux
Last modified: 2013-04-09 06:23:26 UTC
Hardware Environment: Intel graphics chipset newer than 965GM
Intel IGD OpRegion focuses on the next generation proprietary communication mechanisms between graphics driver and system/Video BIOS, which has already been supported by Windows Vista. The support in Linux is not finished yet, which brings some problems for users, e.g. the malfuntion for brightness up/down hotkey press.
We will start working on adding kernel modesetting into drm driver this year.
OpRegion support will also be started that time.
Patch already available.
The patch is still not in base kernel,
when will it be upstream?
Hi Zhang, we wanted to fix one last issue we found with T61. When both the i915 and ACPI video drivers are loaded, hotkey response takes about a second, but it should be instant. It seems like the ACPI event for the hotkey isn't getting delivered to the i915 opregion code right away; maybe there's something in the ACPI video support on T61s that times out waiting for something? Do you have a T61 test platform?
The opregion patches are not in the upstream kernel yet. but it must be in some guy's tree, right? :)
as we still have some open bugs depends on this one, jesse, can you point to me where we can get these patches and run some test?
hmm, seems that the opregion patches are already in linux-next tree.
Carlos and Sebastian,
can you please get the latest source code from linux-next tree,
and see if the opregion patches help?
Does that mean that opregion support is included in 2.6.28?