From: Vince S. <hli...@ya...> - 2008-05-18 08:26:06
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Hello Alex and All: Yes! This worked. The OP is very happy: http://forums.fedoraforum.org/forum/showpost.php?p=1012155&postcount=42 I'm not sure which option(s) were the critical one(s), but I know that I told him to put the "Virtual" option in the wrong place the first try. :( This time, where you showed, it must have helped. He used: ________________________________ Section "Device" Identifier "Videocard0" Driver "radeon" Option "DepthBits" "16" <<== EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" DefaultDepth 24 <<== SubSection "Display" Virtual 1024 768 <<== Viewport 0 0 Depth 24 Modes "1024x768" "800x600" "640x480" <<== EndSubSection EndSection ________________________________ Afterwards, we tried some performance tweaks, and found that the following helped greatly: ________________________________ Identifier "Videocard0" Driver "radeon" Option "DepthBits" "16" Option "DisplayPriority" "HIGH" <<== Option "EnablePageFlip" "on" <<== Option "SubPixelOrder" "NONE" <<== EndSection ________________________________ Thank You very much for your quick and kind assistance on this, Alex. Thanx Again and Best Regards, Vince "I may detest what you say, but I will defend to the death your right to say it." EB Hall, "Friends of Voltaire", 1906 ----- Forwarded Message ---- From: Alex Deucher <ale...@gm...> To: Vince Schiavoni <hli...@ya...> Cc: dri...@li... Sent: Friday, May 16, 2008 8:39:0-1 AM Subject: Re: [Dri-users] ATI Radeon Mobility M6 LY w/LVDS panel and DRI On Fri, May 16, 2008 at 2:10 AM, Vince Schiavoni <hli...@ya...> wrote: > > Hello: > > I'm trying to help a guy on fedoraforum.org forums that has an ATI Radeon > Mobility M6 LY chipset to get DRI working. Here's the thread: > http://forum.fedoraforum.org/forum/showthread.php?t=187984 > > That chipset is supported by the DRI 'radeon' driver. The Xorg.0.logs look > good and show that everything is working great - right up until Xorg and/or > the driver(s) try to map enough VRAM to cover the 1400x1050 LVDS panel he's > got, at which point it all chokes because he doesn't have enough VRAM (19800 > KB required, 16000 KB available). We've tried every xorg.conf > option/setting that seems helpful, to reduce the display resolution to > 1280x800 or less, but no matter what, Xorg or the drivers keep adding that > 1400x1050 mode to the list, which inevitably leads to a failed VRAM mapping > and DRI is disabled at that point. Maybe we're missing something obvious, > but I just can't figure out how to set the display resolution to a > reasonable number that the available VRAM could handle, and not have the > software add any more higher values to the list. I'm hoping that someone on > this list has experience with this kind of hardware, or has some > advice/suggestions as to what to try to set/keep the display resolution, > without having it be over-ridden by the drivers. Any help will be greatly > appreciated. > You don't have enough vram for DRI at depth 24. try depth16: Section "Screen" Identifier "Screen0" Device "Videocard0" DefaultDepth 16 SubSection "Display" Viewport 0 0 Depth 16 EndSubSection EndSection if you want to keep depth 24, you'll have to either reduce the size of your front buffer or depth buffer. you can use a 16 bit depth buffer by setting: Option "DepthBits" "16" to reduce the size of your front buffer, adjust the virtual size down: Section "Screen" Identifier "Screen0" Device "Videocard0" DefaultDepth 24 SubSection "Display" Virtual 1024 768 Viewport 0 0 Depth 24 Modes "1024x768" "800x600" "640x480" EndSubSection EndSection Alex |