Extending VGA ram?
Hi!
I'd like to use screen resolutions of 1920x1200 to 2560x1600 at 32bpp. So far I managed to raise the pixel limit, but not the memory size, and 8MB is a bit low for what I want. 1920x1200@24bpp works fine, but 32bpp results in a segfault. Increasing VGA_RAM_SIZE in qemu/vl.h doesn't help. What else does this depend on?
MfG, Ulrich
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Quoted 9 lines · Heinz Ulrich Stille
Hi!
I'd like to use screen resolutions of 1920x1200 to 2560x1600 at 32bpp. So far I managed to raise the pixel limit, but not the memory size, and 8MB is a bit low for what I want. 1920x1200@24bpp works fine, but 32bpp results in a segfault. Increasing
VGA_RAM_SIZEinqemu/vl.hdoesn't help. What else does this depend on?
You'll need to emulate a card that supports these resolutions. I don't think cirrus does. The vmware vga display in qemu-cvs probably does, but it hasn't been ported to kvm yet. You might try that.
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Quoted 11 lines · Avi Kivity
Quoted 9 lines · Heinz Ulrich Stille
Hi!
I'd like to use screen resolutions of 1920x1200 to 2560x1600 at 32bpp. So far I managed to raise the pixel limit, but not the memory size, and 8MB is a bit low for what I want. 1920x1200@24bpp works fine, but 32bpp results in a segfault. Increasing
VGA_RAM_SIZEinqemu/vl.hdoesn't help. What else does this depend on?
Quoted 3 lines
You'll need to emulate a card that supports these resolutions. I don't think cirrus does. The vmware vga display in qemu-cvs probably does, but it hasn't been ported to kvm yet. You might try that.
BTW, what is your politic about qemu: do you update qemu inside kvm on qemu release only ?
Laurent
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Quoted 4 lines · Laurent Vivier
BTW, what is your politic about qemu: do you update qemu inside kvm on qemu release only ?
I plan to do a merge soon (if things become too stable), but if qemu releases before that, I'd be much happier.
Merging soon has the benefits of bringing in all the good stuff and making future merges easier; on the other hand it can bring in unstable code. On the balance I think a merge would be helpful now.
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Quoted 3 lines · Avi Kivity
You'll need to emulate a card that supports these resolutions. I don't think cirrus does. The vmware vga display in qemu-cvs probably does, but it hasn't been ported to kvm yet. You might try that.
I use Windows XP on std-vga. I tried hacking vgabios to report higher resolutions and memory, but that doesn't seem to make any difference. Windows lists 32bpp even if memory is insufficient for that. So where is the catch? Would it be possible to make std vga support large resolutions without too much effort?
MfG, Ulrich
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Heinz Ulrich Stille / Tel.: +49-541-9400473 / Fax: +49-541-9400450 design_d gmbh / Wilhelmstr. 16 / 49076 Osnabrück / www.design-d.de Osnabrück HRB 19116 / Geschäftsführer: Günter Tammen, Rolf Tammen ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
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Quoted 7 lines · Heinz Ulrich Stille
Quoted 4 lines · Avi Kivity
You'll need to emulate a card that supports these resolutions. I don't think cirrus does. The vmware vga display in qemu-cvs probably does, but it hasn't been ported to kvm yet. You might try that.
Quoted 7 lines
I use Windows XP on std-vga. I tried hacking vgabios to report higher resolutions and memory, but that doesn't seem to make any difference. Windows lists 32bpp even if memory is insufficient for that. So where is the catch? Would it be possible to make std vga support large resolutions without too much effort?
I don't really know. The vga bios, qemu device model, memory size, and guest driver all have to cooperate for this to work.
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