On Mon, Jul 30, 2007 at 09:16:08AM -0600, Bob Lounsbury wrote: > On 7/30/07, Martin Vermeer <[EMAIL PROTECTED]> wrote: > > On Sun, Jul 29, 2007 at 10:39:49PM +0200, Andre Poenitz wrote: > > > On Sun, Jul 29, 2007 at 09:08:32PM +0300, Martin Vermeer wrote: > > > > On Sun, Jul 29, 2007 at 05:34:14PM +0200, Pavel Sanda wrote: > > > > > > Does this have to do with enabling dri (direct rendering > > > > > > interface? I remember that required 16 bits. > > > > > > > > > > today i accidentaly came to similar problem when upgrading my Xorg and > > > > > drivers of graphic card - dri didnt initialize well and X fall back > > > > > from > > > > > hardware dri to some sofware version of rendering. > > > > > out of curiosity i tried lyx and it is unusable even for typing - > > > > > every > > > > > keystroke turn load to 100% for some 0.5 s or so... > > > > > > > > > > fortunately when dri is turned off, lyx is back to normal (while > > > > > stellarium etc is still unusable.) > > > > > > > > > > pavel > > > > > > > > OK thanks, I think this is significant... so qt + lyx (+X?) > > > > is not handling this case correctly. > > > > > > I just checked, on my machine (Acer notebook with Intel on-board > > > grpahics), recent Ubuntu, dri loaded it doesn't make a difference > > > whether the X server runs at 24 bpp or 16 bpp. > > > > > > Andre' > > > > The problem situation appears to be the one in which X > > enables DRI but the hardware (or driver code) cannot handle > > it and substitutes a software solution (?), which used to > > be the case for Fedora/24 bits. Apparently Ubuntu is > > smarter today. > > > > Question: do Google Earth, Stellarium etc run fast both > > for 24 and 16 bits on your system? > > > > - Martin > > > I have an iBook ppc so Google Earth in unavailable, but I ran > Stellarium under 24 and 16 bit and there is a very very big > difference. The 24 bit setting makes Stellarium unusable, while under > 16 bit it seems to run just fine. > > Bob
Right. Can you turn DRI completely off? Then LyX should work fine again also for 24 bpp. - Martin
