I've tried again without video parameter -- same outcome. I've also
applied Ville's patch "drm/i915: Read timings from the correct
transcoder in intel_crtc_mode_get()" (with teeny backport fix). It seems
this code is never called in my case though, since intel_lvds_init()
chooses to use the VBT mode instead. Log is uploaded here:
http://pastebin.com/bGa2UvLu
Since this VBT mode is probably junk anyway, I commented out the
if-statement that selects it (in intel_lvds.c), so that the code will
pick the mode as set by BIOS. The result is much better, I actually get
proper looking output! X also runs well on top of that.
There are still several errors in the log file though (probably caused
by my little hack), see here: http://pastebin.com/UbCjizSV.
Is using the mode as set up by BIOS the way to go for LVDS? If so, is
there a module parameter that can force this, or force the bogus VBT to
be disregarded?
Cheers!
Rob
On 04/01/2016 07:11 PM, Jani Nikula wrote:
Apr 1 11:32:21 vides user.err kernel: [ 4.896341] [drm:i9xx_crtc_compute_clock [i915]] *ERROR* Couldn't find PLL settings for mode!
Please try without the kernel command line mode.
BR,
Jani.
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