Feisty: Xubuntu + Compiz = Smaller than screen visual.

This is because your max texture size is smaller than your screen resolution. What video card/driver are you using? You may be able to work around with with driconf.

lspci -vnn
---
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE] [1002:5159] (prog-if 00 [VGA])
        Subsystem: ATI Technologies Inc Unknown device [1002:1b8a]
        Flags: bus master, stepping, 66MHz, medium devsel, latency 64, IRQ 16
        Memory at e8000000 (32-bit, prefetchable) [size=128M]
        I/O ports at ec00 [size=256]
        Memory at fcff0000 (32-bit, non-prefetchable) [size=64K]
        Expansion ROM at e0000000 [disabled] [size=128K]
        Capabilities: <access denied>
---

I'm using the xorg-xserver-ati driver.

Simon

Hi,
Actually droping X depth to 16 bit seems to make the problem go away.... however I've manage to stuff the system somehow, in that I don't have a window manager started with Compiz.

I guess I'll have to either have to find what been broken, or re-install (which might be quicker).
Simon.

Hi again.
Just to confirm, dropping screen depth to 16 bits works OK (i.e. full witdth). The window manager problems were due (I think) to a corrupt GCONF.

When in 24bit, I attempted to solve this through DRICONF but was unable to find any settings which prevented the problem occuring.
Simon.

Well it was working.... but after installing Xubuntu Feisty (Release Candidate) I'm back to the same problem regardless of whether X is running 16bit or 24bit.

I did notice that glxinfo is reporting a 32bit visual
---
   visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav
 id dep cl sp sz l ci b ro r g b a bf th cl r g b a ns b eat
----------------------------------------------------------------------
0x23 16 tc 0 16 0 r y . 5 6 5 0 0 16 0 0 0 0 0 0 0 None
0x24 16 tc 0 16 0 r y . 5 6 5 0 0 16 8 0 0 0 0 0 0 Slow
0x25 16 tc 0 16 0 r y . 5 6 5 0 0 16 0 16 16 16 0 0 0 Slow
0x26 16 tc 0 16 0 r y . 5 6 5 0 0 16 8 16 16 16 0 0 0 Slow
0x27 16 tc 0 16 0 r . . 5 6 5 0 0 16 0 0 0 0 0 0 0 None
0x28 16 tc 0 16 0 r . . 5 6 5 0 0 16 8 0 0 0 0 0 0 Slow
0x29 16 tc 0 16 0 r . . 5 6 5 0 0 16 0 16 16 16 0 0 0 Slow
0x2a 16 tc 0 16 0 r . . 5 6 5 0 0 16 8 16 16 16 0 0 0 Slow
0x2b 16 dc 0 16 0 r y . 5 6 5 0 0 16 0 0 0 0 0 0 0 None
0x2c 16 dc 0 16 0 r y . 5 6 5 0 0 16 8 0 0 0 0 0 0 Slow
0x2d 16 dc 0 16 0 r y . 5 6 5 0 0 16 0 16 16 16 0 0 0 Slow
0x2e 16 dc 0 16 0 r y . 5 6 5 0 0 16 8 16 16 16 0 0 0 Slow
0x2f 16 dc 0 16 0 r . . 5 6 5 0 0 16 0 0 0 0 0 0 0 None
0x30 16 dc 0 16 0 r . . 5 6 5 0 0 16 8 0 0 0 0 0 0 Slow
0x31 16 dc 0 16 0 r . . 5 6 5 0 0 16 0 16 16 16 0 0 0 Slow
0x32 16 dc 0 16 0 r . . 5 6 5 0 0 16 8 16 16 16 0 0 0 Slow
0x4b 32 tc 0 32 0 r . . 8 8 8 8 0 0 0 0 0 0 0 0 0 Ncon
---

Anyone have any suggestions?
Simon.

Hi.
I got the same problem. In addition i got no background image at all.
Here's my system:
hardware: ati mobility radeon 7500; 1400x1050 display (notebook: compaq evo N620c)
software: ubuntu, gutsy (newest, daily upgraded), radeon-driver, gnome, compiz
I added a screenshot.
I've no idea how to solve that problem.

I have the same problem as waldschrat. IBM T42 with radeon 7500, LCD 1400x1050. Latest gutsy as of today. Screenshot attached.

With today's update, there was an improvement. I tried to enable "Normal effects" and got the message "Desktop effects could not be enabled". This is much better than the surprising result from before (see my Screenshot attachment), but the message was not particularly helpful.

.xsession-errors has:
No nvidia hardware available
Checking for Xgl: not present.
Detected PCI ID for VGA: 01:00.0 0300: 1002:4c57 (prog-if 00 [VGA])
Checking for texture_from_pixmap: not present.
Trying again with indirect rendering:
Checking for texture_from_pixmap: present.
Checking for non power of two support: present.
Checking for Composite extension: present.
Comparing resolution (1400x1050) to maximum 3D texture size (512): Failed.
aborting and using fallback: /usr/bin/metacity

Thanks for taking the time to report this bug and helping to make Ubuntu better. In the development cycle for Intrepid there have been some vast improvements in the open source ati video driver and we could use your help testing them. Could you please download the latest Alpha CD image of Intrepid and test this particular bug just using the Live CD? You can find the latest image at http://www.ubuntu.com/testing . Your testing can help make Ubuntu and the open source ati driver even better! Thanks in advance.

Hi, it's been some time since we last heard from you two - are either of you still interested in this bug? If so, it'd be great if you could re-test it against intrepid, and provide the info mentioned above. Otherwise, we'll close this as expired.

We're closing this bug since it is has been some time with no response from the original reporter. However, if the issue still exists please feel free to reopen with the requested information. Also, if you could, please test against the latest development version of Ubuntu, since this confirms the bug is one we may be able to pass upstream for help.