On 2019-07-04 8:56 p.m., user...@yahoo.com wrote: > Package: xorg-server > Version: 1.20 > > After installing Debian sid on a PowerBook G3 Wallstreet > (292 MHz, 512 MB memory) and selecting the default Debian > desktop and Xfce, I noticed that the desktop is unusably > slow. Just moving or resizing windows on the desktop is > painfully slow compared to Debian 7.8 (which is usable) and > Debian 8.11 (which is still usable but slower than 7.8). > > It is difficult to quantify the subjective slowness of > the graphics performance in Debian sid on the Wallstreet. > In an attempt to quantify the slowness, X11 performance > was tested and compared in Debian 7.8, Debian 8.11 and > Debian sid using the x11perf program. > > Each x11perf test was run by booting to single-user mode. > > For each test (Debian 7.8, Debian 8.11 and Debian sid), > there are four files: > > 1) Serial console log. > 2) dmesg output. > 3) Xorg log from /var/log/Xorg.0.log. > 4) "x11perf -all" output.
One obvious issue is that xserver-xorg-video-mach64 was built without any hardware acceleration support, because the check for EXA support spuriously failed. https://gitlab.freedesktop.org/xorg/driver/xf86-video-mach64/merge_requests/1 fixes this. Meanwhile, you can try enabling Option "shadow_fb", or using xserver-xorg-video-fbdev instead of xserver-xorg-video-mach64 (as was the case with Debian 8). -- Earthling Michel Dänzer | https://www.amd.com Libre software enthusiast | Mesa and X developer
