Created attachment 114064 [details] dmesg ==System Environment== -------------------------- Non-working platforms: BYT-M Regression :No, this issue exist before. ==kernel== -------------------------- origin/drm-intel-testing: 820fa21889d702c70c82e30342154624c7139bb3(2015-02-28) ==Bug detailed description== ----------------------------- start BYT-M with testing branch latest kernel run "echo mem > /sys/power/state" and resume for several times, there may be system error in dmesg. <3>[ 2753.816714] [drm:drm_edid_block_valid [drm]] *ERROR* EDID checksum is invalid, remainder is 128 ==Reproduce steps== ---------------------------- 1. start BYT-M with testing branch latest kernel 2. echo mem > /sys/power/state 3. resume 4. repeat step 2 and 3 several times and check dmesg.
Them monitor I used is ASUS PA238
The warning message is trivial, and only appears because drm.debug is set.
http://patchwork.freedesktop.org/patch/44288/
(In reply to Chris Wilson from comment #3) > http://patchwork.freedesktop.org/patch/44288/ I installed this patch on testing branch commit 820fa21889d702c70c82e30342154624c7139bb3, and found it may cause the machine fail to start up, it will stop starting up after the kernel was loaded. I also tried latest nightly branch commit c09a3b7f343bc87a132ef107cb263e57f8246b88, this patch will not cause start up fail, but it doesn't have such EDID issue with or without this patch.
close this bug for this issue has been fixed in latest testing branch.
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