On 2010.06.29 09:47:04 -0400, Adam Jackson wrote: > On Tue, 2010-06-29 at 16:44 +0800, Zhenyu Wang wrote: > > On 2010.06.28 14:04:56 +0800, Zhenyu Wang wrote: > > > > > > sorry, this is still broken on the 16x9 panel. > > > > > > 'intel_dp_link_required' is 107840*18/8 = 242640, > > > 'intel_dp_max_data_rate' is > > > 270000*1*8/10 = 216000. So it will fail in both check. > > > > Dave, here's dmesg in working (upstream) and your patch applied cases. > > Sorry, this panel does have EDID but is invalid. > > That's not "has invalid EDID", that's "really doesn't have EDID at all". > Might be DisplayID!
yeah, no idea what it really is. > Any chance you can try a patch like this and give > me the dmesg? It'll still look like an EDID failure but it should be > something more interesting than cc cc cc cc ... sure, will run this when I have access to the machine the next day. the failure dmesg just showed the 1600x900 modeline is wrongly pruned. > > diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c > index bd74b3f..16beed2 100644 > --- a/drivers/gpu/drm/drm_edid.c > +++ b/drivers/gpu/drm/drm_edid.c > @@ -201,7 +201,7 @@ bool drm_edid_is_valid(struct edid *edid) > } > EXPORT_SYMBOL(drm_edid_is_valid); > > -#define DDC_ADDR 0x50 > +#define DDC_ADDR 0x52 > #define DDC_SEGMENT_ADDR 0x30 > /** > * Get EDID information via I2C. > > - ajax -- Open Source Technology Center, Intel ltd. $gpg --keyserver wwwkeys.pgp.net --recv-keys 4D781827
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