Description of problem: When the GNOME app for adjusting display resolution is used within a Xen paravirtualized guest, the refresh rate is reported as -7203 HZ which is rather odd! Version-Release number of selected component (if applicable): control-center-2.17.1-1.fc7 How reproducible: Always Steps to Reproduce: 1. Created a Xen paravirtualized guest running FC6 2. Open virt-manager 3. Connect to the guest console 4. Login to X in the guest 5. Run System -> preferences -> resolution menu Actual results: Refresh rate is -7203 HZ Expected results: Refresh rate is 0 HZ ? or disabled altogether ? Additional info: Since this is a virtual framebuffer with no real display attached, the whole question of refresh rate is rather irrelevant. So if there is a sensible way to detect this, I think it'd make sense to either disable the refresh rate widget, or fix it at zero.
Created attachment 140620 [details] Screenshot of guest console
It looks like xrandr also reports the wrong refresh rate (see screenshot), so quite possibly this bug component needs to be changed to belong to Xorg instead.
Yea, looks like it. Reassigning...
Created attachment 140660 [details] xdpyinfo -ext XFree86-VidModeExtension
XFree86-VidModeExtension version 2.2 opcode: 134, base error: 130 Monitor Information: Vendor: , Model: Num hsync: 0, Num vsync: 0 Tee hee. Pretty sure that's not going to work well.
Dan, can you retest this now? In particular with Xorg 1.3.0.0-5 or later. The magic number fix we put in for making X start up properly in F7 xen should at least make this fail in a new way.
It now reports a refresh rate of 0HZ, which sounds reasonable to me, given that there isn't really any real refresh rate for the Xen paravirt framebuffer.
Looks like this was resolved....closing out as CURRENTRELEASE