shadowfb doesn't work on Thinkpad 600E
Posted: 9. Dec 2011, 02:45
I just set up a spare Thinkpad 600E with Salix LXDE. It works, but is ludicrously slow even for a 400 MHz machine. A bit of investigation revealed that the vesa driver does not have its shadow framebuffer enabled, which probably explains the problem.
So I create a xorg.conf and set ShadowFB on. To my surprise and annoyance, X would not start, claiming that it couldn't find any configurable screens.
I also tried the neomagic accelerated driver (at 16 bit color, so the acceleration actually works). It's (unsurprisingly) slower than vesa. I tried disabling its acceleration and enabling the shadow framebuffer... Bam, hard lock, had to use Alt+SysRq.
I would have tried the fbdev driver as well, but unfortunately Salix doesn't ship it.
Anyway... Any ideas re the shadow framebuffers not working?
So I create a xorg.conf and set ShadowFB on. To my surprise and annoyance, X would not start, claiming that it couldn't find any configurable screens.
I also tried the neomagic accelerated driver (at 16 bit color, so the acceleration actually works). It's (unsurprisingly) slower than vesa. I tried disabling its acceleration and enabling the shadow framebuffer... Bam, hard lock, had to use Alt+SysRq.
I would have tried the fbdev driver as well, but unfortunately Salix doesn't ship it.
Anyway... Any ideas re the shadow framebuffers not working?