Screen corruption with Ubuntu 7.10 Gutsy AMD64 host + Compiz + WinXP Pro Client

[Edwin Floyd]

Minimizing, then restoring a running Win XP client window results in screen corruption - "hash" or total darkness on the screen. Pieces of the screen come back if/as they are referenced. The screen image can be restored completely by forcing Win XP to set its screen resolution, either by resizing the client window or by changing Display Properties Settings in the client. Terminal server (RDPv5) access is unaffected. Screen shots attached.

Host system is AMD 64 smp 2.6.22-14-server with Ubuntu Desktop installed and Compiz enabled. H/W is 2 x Opteron dual-core cpus, 8GB ram, 3TB s/w raid array, nVidia GeForce 7300 SE with Envy-installed driver.

Client is Win XP Professional with all MS patches installed and with 1.5.4 Guest Additions installed, ACPI disabled, APIC disabled, memory 768MB and also occurs with memory 1024MB. Video memory doesn't seem to make any difference either - occurs with 8MB and with 128MB.

Virtual Box is 1.5.4 Ubuntu Gutsy amd64, upgraded from 1.5.2 via Synaptic, after adding the appropriate source and signature.

[Edwin Floyd]

Initial XP VM window immediately after start-up

[Edwin Floyd]

VM Window after minimizing and restoring

[Edwin Floyd]

Corrupted window hitting arrow keys and clicking start button

[umoeller]

Thanks for the report. It does appear that we have not sufficiently tested Seamless Windows with the compiz window manager. This problem seems very related to what was reported in #820, so please follow updates there. We're looking into this.