Sorry, @tjaalton, took a while (needed to install Ubuntu again). I was
able to test your custom kernel on a freshly installed Ubuntu 19.10.
Results with custom kernel from https://aaltoset.kapsi.fi/lp1826125:
- Screen corruption was gone
- Suspend/resume worked and graphics output was usable after
Hex dump of EDID (without ASCII representation due to line wrapping):
packet@xps:~$ cat
/sys/devices/pci\:00/\:00\:02.0/drm/card0/card0-eDP-1/edid | hexdump
000 ff00 00ff 104d 14ad
010 1c2a 0401 1da5 7811 de0e a350 4c54 2699
020 500f 0054 0101 0101
Decodes to:
packet@xps:~$ cat
/sys/devices/pci\:00/\:00\:02.0/drm/card0/card0-eDP-1/edid |
edid-decode
edid-decode (hex):
00 ff ff ff ff ff ff 00 4d 10 ad 14 00 00 00 00
2a 1c 01 04 a5 1d 11 78 0e de 50 a3 54 4c 99 26
0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01
untu 19.10 live usb thumbdrive then.
@kent-jclin I guess your question for EDID data was already answered. In
case it wasn't, this is what I got from /sys:
packet@xps:~$ cat
/sys/devices/pci\:00/\:00\:02.0/drm/card0/card0-eDP-1/edid | hexdump -C
00 ff ff ff ff ff ff 00 4d 10
With a custom kernel built from Ubuntu linux package 5.3.0-24.26 with
this patch:
https://bugs.freedesktop.org/attachment.cgi?id=144765
(freedesktop.org bug
https://bugs.freedesktop.org/show_bug.cgi?id=110511)
display works as expected: Flickering after first boot and after resume
is gone.
** B
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