Hardware: DELL E7440 Haswell, with HDMI monitor directly connected, DP monitor connected through dock port.
Strange thing compared to previous comments is that Chrome slows down to a crawl *only* when moved to the third, DP monitor. Everything works OK when chrome is sent to laptop eDP panel, or HDMI monitor.
Launching with
$ LIBGL_DRI3_DISABLE=1 google-chrome-stable
successfully works around the problem, so seems to indicate this bug is the right place to be. Let me know if there's another, possibly more accurate bug available.
I think I bumped into this today. Running gentoo and this package set:
x11-drivers/ xf86-video- intel-2. 99.917_ p20160218 USE="dri3 uxa" (so GLAMOR, not SNA) mesa-11. 0.6 USE=dri3 google- chrome- 48.0.2564. 116_p1 xorg-server- 1.18.1 USE=glamor
media-libs/
www-client/
x11-base/
x11-wm/i3-4.11
Hardware: DELL E7440 Haswell, with HDMI monitor directly connected, DP monitor connected through dock port.
Strange thing compared to previous comments is that Chrome slows down to a crawl *only* when moved to the third, DP monitor. Everything works OK when chrome is sent to laptop eDP panel, or HDMI monitor.
Launching with
$ LIBGL_DRI3_ DISABLE= 1 google- chrome- stable
successfully works around the problem, so seems to indicate this bug is the right place to be. Let me know if there's another, possibly more accurate bug available.
What's the possible next step here?