On Mon, 14 Dec 2020 14:56:27 +0100, Vinzenz Vietzke wrote:
Hi,
Am 05.12.20 um 17:46 schrieb Michal Kubecek:
We (TUXEDO Computers) are selling laptops and PCs with openSUSE Leap preinstalled. One problem we run into quite often is the relatively old kernel version of Leap. E.g. for our lines of AMD Renoir laptops we would need at least 5.6.x upwards to get everything running. Are you sure neither 15.2 nor upcoming 15.3 kernel support your hardware? We have a lot of hardware enablement in these, both for CPU and GPU.
Yes, kinda. The machines boot and work but there are two major issues with AMD Renoir graphics:
1) Brightness control does not work. The Fn keys for brightness up/down trigger the video port feature from Plasma. Plus it gets triggered on it's own from time to time.
Devs told me it's related to this commit: https://github.com/torvalds/linux/commit/14ed1c908a7a623cc0cbf0203f8201d1b7d...
Hm, do you mean this revert patch may cause another regression, or should this patch fix the reported brightness issue? FWIW, the commit above is already in Leap 15.2 kernel.
2) On machines running kernel 5.6+ glxinfo shows AMDGPU as renderer while on Leap 15.2 stock kernel there's only OpenGL listed as renderer. This leads to a significant performance loss as the hardware capabilities don't get used.
First tests with Intel Tiger Lake (11th Gen) show the same symptoms. This in the end would mean we can't ship stock Leap 15.2 anymore. Which I would wan't to avoid if possible.
I'm afraid that you'll need quite lots of other package upgrades for supporting the new hardware on top of the stock Leap 15.2. e.g. the sound won't work on many recent machines and the upgrades of alsa-* packages are needed. I guess the same applied for the graphics. Takashi