[Bug 41610] Re: Screen Resolution tool fails to switch between MergedFB dualhead and clone modes

** Changed in: control-center (Ubuntu) Sourcepackagename: control-center = xserver-xorg-video-ati Assignee: Ubuntu Desktop Bugs = Ubuntu X SWAT -- Screen Resolution tool fails to switch between MergedFB dualhead and clone modes https://launchpad.net/bugs/41610 -- desktop-bugs mailing list

[Bug 41610] Re: Screen Resolution tool fails to switch between MergedFB dualhead and clone modes

I just found the following in the ChanegLog of xf86-video-ati- X11R7.1-6.6.0 (the ati driver tar ball of the latest x11r7.1 release: 2006-04-01 Alex Deucher [EMAIL PROTECTED] * src/radeon.h: * src/radeon_driver.c: (RADEONPreInitModes), (RADEONPreInit), (RADEONResetDPI),

[Bug 41610] Re: Screen Resolution tool fails to switch between MergedFB dualhead and clone modes

** Bug 41607 has been marked a duplicate of this bug -- Screen Resolution tool fails to switch between MergedFB dualhead and clone modes https://launchpad.net/bugs/41610 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs

[Bug 41610] Re: Screen Resolution tool fails to switch between MergedFB dualhead and clone modes

The issue is xorg returns a BadValue, should the capplet ignore them? How can it know than the call worked if xorg sent a BadValue? When the program gets a BadValue it assumes that the call has not worked. Setting as low priority, it could maybe made robust to xorg errors but most of the issue is

[Bug 41610] Re: Screen Resolution tool fails to switch between MergedFB dualhead and clone modes

I agree it's a xorg bug - but why xrandr tool works (is able to switch the modes even though it shows apparently bad sync values) and gui tool crashes? If the capplet simply calls xrandr there should be no problem - and apparently is. What means a workaround for you? Simply calling xrandr with

[Bug 41610] Re: Screen Resolution tool fails to switch between MergedFB dualhead and clone modes

Seems to be an xorg bug to me. What do you expect from the capplet? Do you want it to workaround the xorg bug somewhat? -- Screen Resolution tool fails to switch between MergedFB dualhead and clone modes https://launchpad.net/bugs/41610 -- desktop-bugs mailing list

[Bug 41610] Re: Screen Resolution tool fails to switch between MergedFB dualhead and clone modes

In a glance: if I use MergedFB for dual monitor setup the Screen resloution tool gets confused about refresh rates (in Hz) and cannot properly run xrandr backend to switch the resolutoins - even though xrandr itself can do it fine. Since all docs are included in description of bug #41607 I

[Bug 41610] Re: Screen Resolution tool fails to switch between MergedFB dualhead and clone modes

since xrandr shows invalid refresh rates I've also reported this as xrandr bug #42321. I'm not sure if the bug is in xrandr or xserver- xorg*. I'll try to investigate further but any help would be welcome. If you wish to receive more informations please tell me what are you interested in and I'll

[Bug 41610] Re: Screen Resolution tool fails to switch between MergedFB dualhead and clone modes

Also see bug #34555 in xorg. -- Screen Resolution tool fails to switch between MergedFB dualhead and clone modes https://launchpad.net/bugs/41610 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs

[Bug 41610] Re: Screen Resolution tool fails to switch between MergedFB dualhead and clone modes

is that about resapplet or gnome-display-properties program? -- Screen Resolution tool fails to switch between MergedFB dualhead and clone modes https://launchpad.net/bugs/41610 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs

[Bug 41610] Re: Screen Resolution tool fails to switch between MergedFB dualhead and clone modes

Thanks for your bug. Your bug has no detail nor useful description. Could you describe what dialog you use, what screen resolution you pick, what happens, what should happen instead, etc? ** Changed in: control-center (Ubuntu) Assignee: (unassigned) = Ubuntu Desktop Bugs Status: