Bug 91006 - [SKL][Linux]: Getting huge lag in 4K eDP video playback
Summary: [SKL][Linux]: Getting huge lag in 4K eDP video playback
Status: CLOSED NOTABUG
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: DRI git
Hardware: x86-64 (AMD64) Linux (All)
: medium blocker
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-06-17 09:38 UTC by Vijayakannan Ayyathurai
Modified: 2017-07-24 22:46 UTC (History)
5 users (show)

See Also:
i915 platform:
i915 features:

Attachments
dmesg.log (247.91 KB, text/plain)
2015-06-17 09:38 UTC, Vijayakannan Ayyathurai 		no flags Details
Show Obsolete (1) View All

Description Vijayakannan Ayyathurai 2015-06-17 09:38:57 UTC 
Created attachment 116552 [details]
dmesg.log

System Environment:
--------------------------
Platform: SKL Linux
Kernel - (4.1-rc8) 644bfe268feb04544d89b52edba6bef6a2661ddc
drm kernel merge : 2015y-06m-15d-16h-39m-55s
Libdrm - (2.4.61) a1acffd4e0968ffa65b673163574188a00c9ab7e
Mesa - (10.7.0-devel) 7518fc3c66e9b5703b987bccca7970a344deadfa
vaapi - (0.38.0) 4763db1c2133d4e6b92355938ecb6f23a7767b6b
libva - (1.6.0.pre1) 4763db1c2133d4e6b92355938ecb6f23a7767b6b
intel-driver (1.6.0.pre1) 4a1c4d21f3428b08ef765d7f7de75b97006514ac

eDP resolution used : 3200 x 1800

Bug detailed description:
-----------------------------
We are observing huge lag in the video playback with the 4K eDP panels.

Isolation:
----------------------------
1. The same video is playing without lag with 2K eDP panels.

Reproduce steps:
---------------------------- 

1. Boot the SKL with the above mentioned config
2. Play a video 
3. Observe the Video playback lagging issue.
Comment 1 Jani Nikula 2015-06-17 12:28:59 UTC 
Make sure your CSR firmware gets loaded properly.
Comment 2 Vijayakannan Ayyathurai 2015-06-17 12:45:20 UTC 
As per dmesg, there is a problem in loading the CSR firmware. This error is coming in both SKL-MBL and SKL-DT.


[   19.784831] [drm:skl_set_power_well [i915]] *ERROR* CSR firmware not ready (2)

How to rectify this?

Vijay
Comment 3 Jani Nikula 2015-06-17 13:13:50 UTC 
Get the firmware from https://01.org/linuxgraphics/downloads and place it in your /lib/firmware or similar.
Comment 4 Chris Wilson 2015-06-17 13:27:14 UTC 
Meanwhile the volume of WARNs is ridiculous. I presume there was at least a "please install firmware" message to the user during boot?
Comment 5 Jani Nikula 2015-06-17 13:32:40 UTC 
(In reply to Chris Wilson from comment #4)
> Meanwhile the volume of WARNs is ridiculous.

Agreed; I was thinking of leaving the bug open about that even if the firmware solves the issue...
Comment 6 Vijayakannan Ayyathurai 2015-06-23 08:52:09 UTC 
Tracking internally.
Comment 7 Vijayakannan Ayyathurai 2015-07-03 05:08:06 UTC 
Comment on attachment 116552 [details]
dmesg.log

Removing the dmesg.

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