I don't own this laptop anymore. I don't see anything productive about
having this bug open in debian, since there's a few reports about this
matter in kernel and freedesktop's bugzilla.
Just upgraded to firmware-amd-graphics-20190114/stretch-backports and
nothing changed, therefore lightdm might be working with testing branch
because of lightdm's version or something unrelated to linux itself
(maybe mesa?), still, it used to work correctly with stretch until linux
4.18.20 (at
Today I tested this laptop with testing and unstable branch, all
defaults, no personalized parameters or configurations.
About lightdm graphical glitches: Couldn't reproduce any hang, frozen
frame, or 'black screen' when using testing or unstable branch.
(firmware seems to be related, will
Few things about using 'amdgpu.dc=0' as a workaround for graphical
glitches.
I can't get any HDMI audio output (works correctly with the default
parameters).
On the other hand, redshift doesn't seem to be working correctly with
'amdgpu.dc=0' (cursor temperature remains at 6500K). This works
A workaround for this bug it's using 'amdgpu.dc=0'. No more glitches
for wallpapers, screensaver, or lightdm.
Some details on the lightdm/lockscreen issue.
I just noticed that if I switch to tty1 and go back to lightdm
everything is displayed properly, or well, that's what I thought at
first, because when I tried to click something or even type, it was
unresponsive, it's like a frozen frame,
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