| Summary: | KDE screen goes black when trying to create SDL window with Xen | ||
|---|---|---|---|
| Product: | kdm | Reporter: | Fernando Chaves <fernando> |
| Component: | general | Assignee: | kdm bugs tracker <kdm-bugs-null> |
| Status: | RESOLVED UNMAINTAINED | ||
| Severity: | normal | ||
| Priority: | NOR | ||
| Version: | unspecified | ||
| Target Milestone: | --- | ||
| Platform: | Arch Linux | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | ||
| Attachments: |
Screenshot showing the SDL window working in fluxbox
Screenshot showing the SDL window working in pure X - just xterm |
||
Created attachment 76608 [details]
Screenshot showing the SDL window working in fluxbox
Created attachment 76609 [details]
Screenshot showing the SDL window working in pure X - just xterm
UPDATE: Starting the session "fluxbox" from KDM and starting the VM, the problem happens. Starting fluxbox by editing .xinitrc or something, everything works normally. KDM is unmaintained and not used in KDE Plasma 5. SDDM is the login manager used in KDE Plasma 5. If you still have this same issue with SDDM, please file an issue on the SDDM bugtracker (after doing a search for existing issues first!): https://github.com/sddm/sddm/issues/ |
Normally, when you start a Xen domU virtual machine with sdl=1 in his configuration file in Xen, a window pops up with the screen framebuffer of the virtual machine, so you can control it with mouse and keyboard (just like VNC - also there is a "vnc=1" option in Xen). Note: If you close this window, the virtual machine is destroyed (hard shutdown). Reproducible: Always Steps to Reproduce: 1. Login normally in KDE 2. Create a Xen config file with "sdl = 1" in it. Let's call it "myxen.txt" Example: name = "myxen" builder = "hvm" memory = 128 vcpus = 1 disk = [ ] vnc = 0 sdl = 1 3. Start the domU with "xl create myxen.txt" 3. See a black screen. Done. Actual Results: - The screen goes black, with a freezed mouse cursor and a static "_" in the top left corner of the screen. I must press Ctrl + Alt + F1 then Ctrl + Alt + F7 to bring KDE back. - Sometimes it swaps to tty1 (sometimes tty2), showing a login prompt. I must press Ctrl + Alt + F7 to bring KDE back. - My SDL window is not created. VM does not start. The VM can't start, since the SDL window have not been created. xl says: "libxl: error: libxl_dm.c:1245:libxl__destroy_device_model: Device Model already exited" Expected Results: Create a SDL window so I can view/control the Virtual Machine. Hardware tested: MB: Striker II Formula CPU: Core 2 Quad Q9650 VGA: Quadro FX580 (with Nouveau driver) MB: G31-based motherboard (don't know the manufacturer) CPU: Pentuim D E5300 VGA: GeForce 9800GT (tested both with nvidia and nouveau drivers)