Device: ThinkPad X1 Yoga with i7-6500U Situation: the screen flash to white on high game loads. The game confirmed to trigger the bug is Minecraft (others not tested). Step to reproduce: Play Minecraft with maximum FPS set over 60 (or VSync) and full screen. The screen flashes frequently. There is no problem if I limit it to 50. Sounds like a overrun for me. I haven't try window mode. It doesn't occur for normal use. Chrome has no problem. No errors are reported in dmesg. OS is Arch Linux.
Please add drm.debug=0x1e module parameter and attach dmesg from boot. You may need to use log_buf_len=4M or bigger to capture everything. Let's see if there's anything there.
Created attachment 124636 [details] The log with the debug options. I have took a log. Please take a look.
log included, removing needinfo status
Sorry Tatsuyuki for this delay until getting on back to you and on this. Due to this delay and since there have been quite a lot code fixes on this area submitted lately, I would appreciate a lot if you can retest this with the latest kernel (preferable drm-tip fromgit://anongit.freedesktop.org/git/drm-tip). If problem still exist then change status to REOPENED and attach dmesg from both working and non-working cases.
Timeout - marking resolved+worksforme. Please reopen the bug if problem still persist with the latest kernels (preferable from drm-tip).
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