[Bug 108529] [CI][BAT] igt@* - dmesg-warn - [drm:drm_dp_dpcd_access] Too many retries, giving up. First error: -5, then *ERROR* Failed to probe lspcon

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108529

--- Comment #5 from shashank.sharma at intel.com <shashank.sharma at intel.com> ---
Swati tested LSPCON probing on Bangalore APL system, where:
        - LSPCON HW is on port B,
        - VBT was bad, and was showing LSPCON on all ports A, B C
        - On Port B, the probe was successful, but probe was failure on port 
 A and C (as there was no LSPCON)

 - On FI-CI Build APL system:
        - the VBT seems showing LSPCON only on Port B
        - but we are seeing a failure during the probe itself, even on LSPCON
port

 So technically, Swati is not able to reproduce this issue yet (as the 
 probe failures were on non-LSPCON ports A and C, due to wrong VBT 
 reports)

 Next steps for debug:
 Lakshmi: Can you please share the BIOS(VBT) which is being flashed 
 on CI- APL system where the failure has been observed ?

 Swati: Please flash this BIOS(VBT) on Bangalore APL system, and see 
 if you are able to reproduce this issue.
        - If yes: Lets debug this issue further and root cause.
        - If no: We might need to get access to CI-APL system, for root
causing.

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20181030/dabe4796/attachment.html>