Win 10 Host doesn't render all elements when running headless |
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Issue descriptionVersion: 50.0.2661.22 OS: Windows 10 What steps will reproduce the problem? (1)Connect to a Windows 10 Host running headless or with monitor turned off (2)Note that certain Windows 10 specific elements of the Windows UI do not render correctly, for example, when clicking Search, the Search results do not render. Also the mouse pointer doesn't point to the correct spot when moving only over the Windows 10 start tiles, and the Windows Settings app doesn't render all areas (the old Windows 7 style control panel works fine) (3)If you turn the monitor on or connect a monitor, everything renders correctly again
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Mar 15 2016
Sure.
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Mar 16 2016
This bug has been reported @ 526883, and assigned to Ted Nakamura (tnakamura) because it's in WebRTC layer.
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Mar 16 2016
Based on our conversation off-line, that bug is related to Metro UI, which is not the case here. AIUI, the code that omits Metro windows should do so regardless of whether or not the monitor is switched on, so I think this is different from bug 526883 .
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Apr 8 2016
I am using a laptop (thinkpad x1 carbon second generation), with intel HD graphics 4400 display adapter. I closed the screen, so it went into headless mode. But I could not reproduce the issue, no matter with monitor existing or not, setting app worked fine. Both screenshot attached. p.s. I am using a production version.
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Apr 8 2016
This issue was reproduced on two systems, one with an Nvidia card, the other with an AMD apu. However, I could not repro on a third machine, with Nvidia graphics. I am not sure why the repro is inconsistent.
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Apr 12 2016
Can I debug on these machines?
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Apr 12 2016
Absolutely. I'll set up a log in for you and hand it to you.
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Apr 14 2016
I have updated driver of video adapter, now the issue has gone. It looks like an optimization of the driver, i.e. if there is no display, the screen won't need to be updated. Especially when we need to update a directx based area, which requires more energy. I have also found similar impact on my laptop, though the screen renders well, the performance has been reduced obviously in headless mode. If you do not have concern, or upgrading driver of Nvidia card can also resolve the issue. I would like to resolve this bug as won't fix. P.S. a good news is, this machine (x130e I believe) has a very strange spec, it uses a 1366x768 screen, but the video adapter indeed uses 1376x768 memory alignment. This helps me to resolve a bug in DirectX based capturer.
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May 30 2017
This no longer occurs, so marking as Verified |
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Comment 1 by jamiewa...@chromium.org
, Mar 15 2016Status: Assigned (was: Untriaged)