Summary: | [KBL] Display Flashing Every Few Seconds | ||||||||
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Product: | DRI | Reporter: | viveksjain | ||||||
Component: | DRM/Intel | Assignee: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||
Status: | CLOSED NOTOURBUG | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||||
Severity: | major | ||||||||
Priority: | medium | CC: | intel-gfx-bugs | ||||||
Version: | unspecified | ||||||||
Hardware: | x86-64 (AMD64) | ||||||||
OS: | All | ||||||||
Whiteboard: | |||||||||
i915 platform: | i915 features: | ||||||||
Attachments: |
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Description
viveksjain
2017-02-03 01:26:53 UTC
Created attachment 129308 [details]
blue fuzz
BTW, if it helps, I've noticed the black parts of the screen develop a blue fuzz just before the screen flashes. See example image of glxgears.
Finally managed to fix it! Turns out when I use Ubuntu in BIOS mode (rather than UEFI) it works perfectly. I'm guessing it's some compatibility issue with my Gigabyte H270N-WIFI motherboard. Had no idea EFI problems could cause strange display issues like this. If you know where to report the UEFI issue, please let me know. Otherwise I'm just happy it's fixed. (In reply to viveksjain from comment #2) > Finally managed to fix it! Turns out when I use Ubuntu in BIOS mode (rather > than UEFI) it works perfectly. I'm guessing it's some compatibility issue > with my Gigabyte H270N-WIFI motherboard. Had no idea EFI problems could > cause strange display issues like this. > > If you know where to report the UEFI issue, please let me know. Otherwise > I'm just happy it's fixed. Probably caused by the OEM (intentionally or unintentionally) creating a different VBT (Video BIOS Table) for UEFI and legacy boots, and only testing with what Windows uses i.e. UEFI. This is not unusual. |
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