Ted Unangst wrote: > with latest kernel (with the hang warnings fixed) after resume on x1 the > system partially redrew the screen, then seemed hung for a while. switch to > virt console and back to x either fixed it, or just coincidence. > > i notice this in dmesg: > error: [drm:pid20144:i915_context_is_banned] *ERROR* context hanging too fast, > declaring banned!
Some more info about this. A kernel from Sep 30 hangs after resume. It repaints just a little bit of the screen, then it hangs. It appears totally frozen, and does not recover. (Maybe the recovery above was a fluke.) I noticed today that gl wasn't working anymore, after the above happened. Resume was reliable after that first time. But I wanted gl to work, so I rebooted. Now resume seems to never work. I have since reverted to a src tree dated 9/25 and the problem has gone away. Something between the 25th and 27th made things bad, and it hasn't been fixed. 2015 x1 carbon
