I can confirm that reverting to linux-firmware:amd64=1.173.12 with
kernel 5.3.0-40-generic on Xubuntu 18.04.4 solved my problem.
Workaround with kernel parameter "radeon.modeset=0
rd.driver.blacklist=radeon" removed error messages but caused fan to
work constantly when watching e. g. youtube in
edit to post #10: my problem was the same as in original posting - just
to avoid confusion
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https://bugs.launchpad.net/bugs/1865130
Title:
[drm:uvd_v1_0_start
I just managed to get the 4.4.0-24-generic kernel to a proper suspend
and resume for several times. As mentioned in the several bugs reported
here, it seems to affect users with Intel/ATI hybrid graphics.
I disabled the ATI part by editing /etc/default/grub line to:
I just managed to get the 4.4.0-24-generic kernel to a proper suspend
and resume for several times. As mentioned in the several bugs reported
here, it seems to affect users with Intel/ATI hybrid graphics.
I disabled the ATI part by editing /etc/default/grub line to:
Same effect here as you described (Samsung Ativbook 7 730U3E with
Intel/ATI graphic). Xubuntu 15.10 with all the updates worked. After
upgrading to 16.04 suspend stopped working.
Due to some issues with systemd during the upgrade I did a fresh install
of 16.04 Xubuntu but ran into the same
Same effect on my Samsung Ativ Book 7 (intel i7 intel/ati hybrid)
neither radeon, nor fglrx is working. Kernels 3.13.0-37, 3.16.0-23/24
don't work. Everything worked unter Xubuntu 14.04 (under 14.04
acpi_backlight=vendor even turned on brightness sensor) Under 14.10 ONLY
brightness sensor works
Another Laptop here (Samsung Ativ Book 7 - type: 730U3E-X04DE). It's not
on the list of hardware known to brick in UEFI mode. So I installed it
in UEFI mode. Samsung-laptop is not loaded here as well so some minimal
things are not working properly (keyboard illumination, fan-control,
WiFi switch).
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