Created attachment 136905 [details] dmesg Dear Developers! I have this bug on different Linux kernels. Only with 4.15.0-041500rc8 i am able to boot, but there is no hardware acceleration. https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743427 If you need more informations please let me know. Best regards, Hans
Does radeon.uvd=0 on the kernel command line help?
Can you attach your full dmesg output?
Created attachment 136941 [details] dmesg.log
Created attachment 136942 [details] lspci.log
Created attachment 136943 [details] grub.cfg
Thanks for your replay @Michel Tested but the system crash and the screen becomes only black. @Alex Done
I suspect Alex meant the full dmesg output without nomodeset. :)
Thanks but how can a do this? Without this option in Grub i only see 1 second a few lines, then the monitor switch into a black screen. nothing happens anymore. also am not able to ping the host. i have to press the power button for a few seconds to force a shutdown.
(In reply to hansmatros76 from comment #8) > Thanks but how can a do this? You attached a partial dmesg output in comment 0. Can you just remove the grep so we get the full output?
Is this a regression? Did it work previously? If so, with what kernel?
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