Hello
Since Linux 2.6.36 the digital output on my system (855GME + DVI-I) is not working any longer. The analog output is always activated regardless of the type of monitor attached.
The culprit seems to be intel_crt_detect_ddc(), which returns true as soon as an ACK from the EDID device is received. Obviously this approach does not work with DVI-I where the analog and digital outputs share a common DDC bus.
The patch below adds an additional check to make sure that there is really an analog device attached (similar to the "Mac mini hack" in intel_sdvo.c)
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On Thu, 06 Jan 2011 12:11:38 +0100, "David Müller (ELSOFT AG)" d.mueller@elsoft.ch wrote:
The patch below adds an additional check to make sure that there is really an analog device attached (similar to the "Mac mini hack" in intel_sdvo.c)
Nice patch, thanks. I've applied this to my -fixes queue. -Chris
Attached the corresponding patch for kernel 2.6.36.
Chris Wilson wrote:
Nice patch, thanks. I've applied this to my -fixes queue.
So this means that this fix will be part of a future stable 2.6.37.x kernel or will it be only part of the upcoming 2.6.38? If it is the latter, shall i send the patches to stable@kernel.org myself? Do i need an ACK from you or any other DRI maintainer to do so?
dri-devel@lists.freedesktop.org
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"David Müller (ELSOFT AG)" -
Chris Wilson