On Mon, Jan 25, 2010 at 12:27:26AM +0100, Xavier Chantry wrote: > On Sun, Jan 24, 2010 at 11:50 PM, <fons@xxxxxxxxxxxxxxx> wrote: > > Hello all, > > > > Today I installed Arch on my desktop which previously had Fedora. > > All works well except > > > > ssh -X zita2 emacs > > > > where zita2 is my laptop. > > > > It works, but it is ex tre me ly slow, I can count > > the lines being displayed when scrolling a page. > > This used to work perfectly before. > > Other apps doing quite intensive X work don't seem > > to be affected. OTOH, the emacs running on the laptop > > is of course the same as before. > > > > Video driver is 'nv', but it doesn't show up in lsmod. > > Some others do: 'drm' and 'ttm' which I haven't seen > > before. As far as I was able to find out, 'drm' is > > related to 3D-acceleration. I don't need nor want this, > > and I'm suspecting it could be related to the problem > > I'm seeing. > > > > Any hints/help will be appreciated ! > > > > Are you sure you were using nv on fedora ? nv is indeed extremely slow. > Fedora 11 apparently used nouveau as default : > http://fedoraproject.org/wiki/Features/NouveauAsDefault > You can also install it easily on Arch, just have a look at > http://wiki.archlinux.org/index.php/Nouveau It is the 'ssh -X zita2 emacs' that is very slow. Running emacs locally is perfectly OK. The previous install was F9, it used nv, and the same 'ssh -X zita2 emacs' worked perfectly. Nothing has changed on zita2. As far as I can see, the Arch installation tries to enable 3D-acceleration by installing 'drm'. I don't want it. How can it be disabled ? Ciao, -- FA O tu, che porte, correndo si ? E guerra e morte !