Software Support > GroovyMAME
Strange issue with GroovyMame v.146
Calamity:
Well, at least now we know where to look at. you probably need to edit the grub command, that's the menu you see on boot. there's a param in that line that controls the resolution, hopefully it works:
http://forums.opensuse.org/english/get-technical-help-here/install-boot-login/406464-set-post-grub-pre-gui-resolution.html
ves:
Hello mamenewb100 , can you post logs "/var/log/*" and grub.cfg "/boot/grub/" ?
How do you know that the resolution is always 1440x900 on xorg?
mamenewb100:
--- Quote from: ves on July 20, 2012, 11:08:56 am ---Hello mamenewb100 , can you post logs "/var/log/*" and grub.cfg "/boot/grub/" ?
How do you know that the resolution is always 1440x900 on xorg?
--- End quote ---
Hi VES. I've tried just about every basic suggestion I could find on the internet and nothing has worked. Some kind of auto-res change is always applied during boot. I've tried adding the lines "nomodeset" and "vga=***" but it has no effect.
I notice that it starts booting in low-res because the text is big on the LCD screen. Then right around the time it gets to processing UDEV events and setting up user settings it changes to a much higher res. Udev the culprit maybe? If I use my arcade monitor it simply displays "over specification" when it gets halfway through the boot process.
Let me be clear that Xorg is NOT the issue. That works fine and changes res without a problem. It is the GA Setup environment that is in hi-res and can't seem to be changed. Once I get past GASetup screen and Xorg loads the emulator, then all is well but I can't make any changes with my arcade monitor without GAsetup. Is there anyway to use command line while in Xorg environment? Xorg closes whenever I press ESC to get back to GA Setup screen.
I included some logs but they don't seem to mention anything about res changes or any major problems. Tried to include some pics but couldn't because of file size limitation.
mamenewb100:
Ok I just discovered something. If I boot hooked up to my arcade monitor and then switch VGA cable over to my LCD it shows GASetup in 1024x768. Windows 7 also detects my monitor as being capable of 1024x768 when it is not.
Once again I think this an issue with the program trying to auto-detect my monitor and over-riding any manual settings I try to make.
Calamity:
Well, it seems that the card is somehow reading an EDID block from the DVI-0 port so probably your monitor is providing one:
[ 14.185] (II) RADEON(0): EDID vendor "PTS", prod id 1904
The odd thing is that this EDID contains many high resolution modelines that your monitor doesn't support. So the OS is getting fooled by this information. This is strange, but unfortunately many monitors and TVs contain wrong EDID blocks.
Just out of curiosity, have you tried booting with the arcade monitor attached to the VGA output? Why are you using the DVI one?
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