desktop-packages team mailing list archive

[Timothy Arceri <775089@xxxxxxxxxxxxxxxxxx>]

Hi Ave,
            I'm not 100% familiar with the ATI drivers as I have alway had a nvidia card myself, but my suspicion is this is something to do with the KMS (Kernal Mode Setting). I believe KMS is only implemented in the open source ATI drivers but you have said the proprietary Catalyt drivers have the same issue so maybe they do implement KMS. Another reason I suspect this may be the case is you said you could get around this before 9.10 which is when KMS was first supported for the ATI driver. 

Can you try disabling KMS an see if that makes a difference? See:
https://wiki.ubuntu.com/X/KernelModeSetting not sure if the settings on
that page are still valid for turning it off or not so you may need to
do more research if that doesn't work.

If that works then we can try reassign this bug to the right project.
Good luck.

FYI anyone reading this: Kernel mode-setting (KMS) shifts responsibility
for selecting and setting up the graphics mode from X.org to the kernel.
When X.org is started, it then detects and uses the mode without any
further mode changes. This promises to make booting faster, more
graphical, and less flickery.

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https://bugs.launchpad.net/bugs/775089

Title:
  selecting resolution in monitors doesnt change resolution in log in
  screen etc

Status in One Hundred Paper Cuts:
  Incomplete
Status in Light Display Manager:
  New
Status in “gdm” package in Ubuntu:
  New

Bug description:
  Ubuntu doesnt always select the correct/desired resolution for your monitor. When you choose the correct resolution using the monitors application, it corrects the resolution for the system, but not for the log in screen, grub menu or boot up screen. 
  what happens then, in my case, is that my monitor doesnt support the detected resolution, and so I am unable to use the log in screens, or view the splash screen etc.

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