Red Hat Bugzilla – Bug 1287964
Random screen flickering after update from xorg-x11-drv-intel-2.99.917-6
Last modified: 2016-12-20 11:36:04 EST
Description of problem:
Ever since Fedora 22, with any version of xorg-x11-drv-intel later than 2.99.917-6 there is random flickering of the screen on my Dell Inspiron 15 with "Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)" (lspci). The flickering is both random and infrequent, and occurs mostly when a maximized window with a large white background is open, such as the Web browser or a text editor. I found some issues on the Web, such as bug #1226531 and bug #1226743 here, and http://lists.freedesktop.org/archives/intel-gfx/2015-May/066591.html, but these issues are either marked as fixed or seem to be different. According to various comments on such issues, I have tried both the i915.enable_ips=0 kernel boot option and the UXA acceleration method, to no avail. I have font scaling set to a factor of 1.05 although my screen resolution is 1366x768 (not native HiDPI). However, with xorg-x11-drv-intel-2.99.917-6 and earlier, font scaling did not cause any flickering. I am not using Wayland.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Not deterministic, may not occur.
1. Use a version of xorg-x11-drv-intel later than 2.99.917-6 on an Intel Haswell graphics controller.
2. Open a window (on GNOME in my case, and not on Wayland), preferably one showing a large white background, and let it remain in focus for several minutes without any activity or with infrequent and minimum (localized) activity. Do not change window focus.
Screen sometimes flickers.
No flickering of the screen.
GNOME 3.18. Font scaling set to 1.05 on 1366x768 resolution. Not using Wayland.
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