Hello again, I've since upgraded to Ubuntu 10.04 and the problem persists: rotating the screen really bogs the system down.
(Probably) relevant packages are: xserver-xorg-core 1.7.6 xserver-xorg-video-intel 2.9.1 Some excerpts from Xorg.0.log: (==) intel(0): Depth 24, (--) framebuffer bpp 32 (==) intel(0): RGB weight 888 (==) intel(0): Default visual is TrueColor (II) intel(0): Integrated Graphics Chipset: Intel(R) Pineview GM (--) intel(0): Chipset: "Pineview GM" [...] (II) intel(0): [DRI2] Setup complete (**) intel(0): Framebuffer compression disabled (**) intel(0): Tiling enabled (**) intel(0): SwapBuffers wait enabled (==) intel(0): VideoRam: 262144 KB (II) intel(0): Attempting memory allocation with tiled buffers. (II) intel(0): Tiled allocation successful. (II) UXA(0): Driver registered support for the following operations: (II) solid (II) copy (II) composite (RENDER acceleration) (==) intel(0): Backing store disabled (==) intel(0): Silken mouse enabled (II) intel(0): Initializing HW Cursor (II) intel(0): No memory allocations (II) intel(0): RandR 1.2 enabled, ignore the following RandR disabled message. (==) intel(0): DPMS enabled (==) intel(0): Intel XvMC decoder disabled (II) intel(0): Set up textured video (II) intel(0): Set up overlay video (II) intel(0): direct rendering: DRI2 Enabled (--) RandR disabled Is there any tweak I could attempt, or is a rotated screen simply supposed to be slow? > I've got a new netbook with an Intel Atom N450 and a Pineview integrated > GFX controller. I'm running Ubuntu 9.10 with Xorg 1.6.4. As it's a > tablet/convertible, I'd like to be able to switch the screen orientation > from time to time. This does work find with xrandr, however, any > rotation except "normal" (i.e., "left","right", and "inverted") is very > slow (e.g, Firefox is barely usable anymore). An entirely non-scientific > test with glxgears gives a framerate of 1190 FPS in normal mode and > around 250 in any rotated mode. > Is this to be expected, or is there a glitch somewhere? Florian _______________________________________________ [email protected]: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.freedesktop.org/mailman/listinfo/xorg
