Comment # 7
on bug 106671
from Alan W. Irwin
Please remove the resolution of this bug as FIXED. The reason for this request is subsequent kernel-4.16.x use after the initial success I reported continued to show lock ups whenever this graphics card was used. Yesterday, I tried kernel-4.17.17-1 from Debian Buster (the first time I had tried any kernel-4.17.x version) in great anticipation these kernel lockups would be fixed (since kernel-4.17.x apparently contains lots of AMD graphics fixes). But when I used this graphics card for ordinary direct desktop use (as opposed to accessing my desktop on the new computer via an X-terminal which is so far the only stable way I can use my new computer), I got a lockup within a half hour or so followed by one roughly 8 hours later. For what it is worth, I have also installed mesa-8.1.6-1 and version 20180518-1 of the firmware-amd-graphics package from Debian Buster before performing this failing experiment. So it appears the substantial number of AMD graphics fixes in kernel-4.17.x and mesa-18.1.y and installation of the relatively recent (from May) Debian Buster firmware-amd-graphics package are not sufficient to stabilize use of this AMD RX 550 graphics card. That is a big disappointment since this card should no longer be considered cutting-edge hardware (i.e. it was first offered for sale at least 16 months ago) and this delay in fixing it cannot be attributed to non-cooperation from AMD since they appear to have a good open-source record. Because of these on-going issues with direct use of this card, I am going back to using the X-terminal method with this kernel which experience with kernel-4.16.x shows is much more stable since it avoids using this graphics card completely (except for the direct display of the Linux console login prompt). I plan to again try the experiment of attempting to use this card directly when kernel-4.18.x is promoted to Buster. But meanwhile, if you have any other suggestions I could try, please let me know.
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