Summary: | [SKL][Linux]: Getting huge lag in 4K eDP video playback | ||||||
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Product: | DRI | Reporter: | Vijayakannan Ayyathurai <vijayakannan.a> | ||||
Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
Status: | CLOSED NOTABUG | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
Severity: | blocker | ||||||
Priority: | medium | CC: | badex.appalanaidu, girish.ks, intel-gfx-bugs, raju.rajakumar, vijayakannan.a | ||||
Version: | DRI git | ||||||
Hardware: | x86-64 (AMD64) | ||||||
OS: | Linux (All) | ||||||
Whiteboard: | |||||||
i915 platform: | i915 features: | ||||||
Attachments: |
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Make sure your CSR firmware gets loaded properly. 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 Get the firmware from https://01.org/linuxgraphics/downloads and place it in your /lib/firmware or similar. Meanwhile the volume of WARNs is ridiculous. I presume there was at least a "please install firmware" message to the user during boot? (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... Tracking internally. Comment on attachment 116552 [details]
dmesg.log
Removing the dmesg.
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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.