The booting is too long on any kernels =>4.4 (higher than Ubuntu xenial non-hwe versions).
The errors in dmesg output are similar to this:
[drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:41:pipe B] flip_done timed out
[drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [PLANE:35:plane B] flip_done timed out
I tried amd64 and i386 (i686) architectures with the same results. Also I tried Fedora and some other distributions.
The system information was collected by apport and posted there:
Dmesg attached here from Linux version 4.15.0-20-generic, can you try to verify this issue with latest drm-tip?
If the problem persists (with drm-tip) attach the full dmesg from boot with kernel parameters drm.debug=0x1e log_buf_len=4M?
Created attachment 142524 [details]
dmesg 4.20 RC2
Ville, any comments here?
May I use this link for drm-tip?
I tried linux-image-4.20.0-994-lowlatency_4.20.0-994.201811182101_i386 from the link above, but I can't boot it by the normal way. And I don't know how to save dmesg while the system does not respond. But I tried to boot in recovery mode and have got two dmesgs without X and with nomodeset on (and/or something else by recovery mode menu -> resume). I guess it's not useful, but it's all I've got.
If it's distro version related I can install any of them on my old hdd.
And I don't know how to use https://cgit.freedesktop.org/drm-tip/. Should I merge it with the latest kernel sources and then compile? How to merge it?
Created attachment 142525 [details]
dmesg Ubuntu drm-tip 4.20.0-994.201811182101 (recovery mode -> resume (nomodeset(?))
Can you please set kernel parameters drm.debug=0x1e log_buf_len=4M and reproduce this issue and attach the log?
Current logs are without debug parameters.
The dmesg didn't have the debugs enabled so can't see much.
The one important detail I see is
[ 15.130664] ? wait_woken+0x70/0x70
[ 15.130746] intel_get_load_detect_pipe+0x335/0x380 [i915]
[ 15.130801] intel_tv_detect+0x10b/0x480 [i915]
so this is a duplicate.
*** This bug has been marked as a duplicate of bug 93782 ***
Created attachment 142581 [details]
dmesg 4.15 ubuntu 16.04.5 hwe drm.debug=0x1e
I wasn't able to boot 4.20rc2, 4.20rc3 and drm-tip current. I don't know why. I was able to boot 4.20rc2 a day before and now I can't. It looks like it is the same case as was on linux-image-4.20.0-994-lowlatency_4.20.0-994.201811182101_i386.
So I've made the dmesg with drm.debug=0x1e log_buf_len=4M for default Ubuntu Xenial hwe kernel (4.15). I hope it can be helpful.
(In reply to Ville Syrjala from comment #8)
I've attached dmesg with drm.debug recently. Could you please check it to be sure it's a duplicate?
(In reply to Dima from comment #10)
> (In reply to Ville Syrjala from comment #8)
> I've attached dmesg with drm.debug recently. Could you please check it to be
> sure it's a duplicate?
i965gm+tv -> it's a duplicate
Booting with video=SVIDEO-1:d helps. So indeed it's a duplicate. Finally I can update to 18.04. A profound bow to you all. Thank you.