Bug 99159

Summary: Screen flickering when resolution max 2560 1440 on razer blade stealth
Product: DRI Reporter: aRkadeFR <contact>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED FIXED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: major    
Priority: medium CC: intel-gfx-bugs, przanoni
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments:
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Description aRkadeFR 2016-12-20 11:53:13 UTC 
Created attachment 128585 [details]
full dmesg

Hello,

I've just installed a fresh debian stretch on my razer blade stealth QHD, and
the screen is flickering black when the resolution is maximum (2560x1440).

The problem occurs even downgrading the refresh rate to 40Hz, and on console,
weston, XFCE, awesome WM.

I tried to reproduce the problem with the nightly version of the drm i915, but
failed to compile and installed it.

Thanks

More information:
uname -r : 4.8.0-2-amd64
uname -m : x86_64
linux dist: debian stretch
machine: razer blade stealth (http://www.razerzone.com/gaming-systems/razer-blade-stealth)
GPU: HD 620 integrated to intel i7 7500U kaby lake
display connector: eDP1
Comment 1 Paulo Zanoni 2016-12-20 13:21:08 UTC 
(In reply to aRkadeFR from comment #0)

> 
> I tried to reproduce the problem with the nightly version of the drm i915,
> but
> failed to compile and installed it.

Please try the drm-tip tree: https://cgit.freedesktop.org/drm-tip branch drm-tip. We just merged a patch that solves another screen flickering bug today, so it may help you.

And just to confirm: if you use resolutions lower than 2560x1440 the screen doesn't flicker?
Comment 2 aRkadeFR 2016-12-21 11:40:39 UTC 
I just succeed to build the kernel from the drm-tip && installed it, and indeed it fixes the problem of flickering!
Thank you

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