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F-0_ICE
l33t
Joined: 06 Dec 2004
Posts: 679
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 Posted: Sun Mar 05, 2006 3:11 am Post subject: lcd trouble with amd64 framebuffer |
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hey i have been trying to address alot of problems with my new amd64 machine. drivers,X,kernel tweaking,etc. and since i am troubleshooting in the console i need a fairly decent resolution for scrollback purposes and to make things easier to read  problem is this when i set the vga statement in grub my HPvs17 lcd monitorgets a sync problem and i end up with a blank screen unless i remove the statement. since i thinks this is something to do with the refesh rate and i can't specify it since vesafb-tng isn't on amd64. i use this lcd with 1280x1024@60Hz but some thing is going arwy. so can anyone please help me?
NOTE: i apologize if this thread already exists.
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~AMD64
AMD: Athlon64 X2 3800+
2G PC3200
ATI: RADEON HD 4350
Linksys: WMP54G
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Pse
Apprentice
Joined: 01 Mar 2005
Posts: 188
Location: by the plate river
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| Posted: Sun Mar 05, 2006 10:01 am Post subject: |
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| Try passing "vga=ask" as a kernel parameter. Find a mode that works and suits you, and you're set =). |
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F-0_ICE
l33t
Joined: 06 Dec 2004
Posts: 679
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| Posted: Sun Mar 05, 2006 8:16 pm Post subject: |
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sigh not a single mode worked for me they would just mess up the text display. thanks for they reply
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~AMD64
AMD: Athlon64 X2 3800+
2G PC3200
ATI: RADEON HD 4350
Linksys: WMP54G
True Knowledge is Best Acquired Through Experience. |
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Pse
Apprentice
Joined: 01 Mar 2005
Posts: 188
Location: by the plate river
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| Posted: Mon Mar 06, 2006 5:21 am Post subject: |
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| Seems like some sort of problem with the framebuffer device... Have your tried using the radeon framebuffer? (not sure whether it'll work in your system, since you have onboard graphics, but worth a try). |
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F-0_ICE
l33t
Joined: 06 Dec 2004
Posts: 679
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| Posted: Mon Mar 06, 2006 1:32 pm Post subject: |
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no. how is that configured like vseafb or vesafb-tng? eg. use the vga=xxx or hrezxvrez-cd@rr
_________________
~AMD64
AMD: Athlon64 X2 3800+
2G PC3200
ATI: RADEON HD 4350
Linksys: WMP54G
True Knowledge is Best Acquired Through Experience. |
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Pse
Apprentice
Joined: 01 Mar 2005
Posts: 188
Location: by the plate river
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| Posted: Tue Mar 07, 2006 2:47 am Post subject: |
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Yes, but you'll probably have to recompile your kernel. You can enable support for radeonfb here:
| Code: | Device Drivers > Graphics support:
[*] Support for frame buffer devices
<*> ATI Radeon display support |
You'll also have to add this to your kernel params:
| Code: | | video=radeonfb:1400x1050-32@60 |
(change the resolution and refresh rate to suit your needs and take out anything related to vesa or vesa-tng) |
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F-0_ICE
l33t
Joined: 06 Dec 2004
Posts: 679
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| Posted: Tue Mar 07, 2006 8:18 pm Post subject: |
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ok so don't use the mtrr or ywrap right? and if you know. does the radeon framebuffer interferes ati-drivers package do you? just asking cuz i know nvidia-kernel driver wouldn't accept kernel support for it's framebuffer drivers on my x86 box. come this weekend i'll test it and thanks for helping 
_________________
~AMD64
AMD: Athlon64 X2 3800+
2G PC3200
ATI: RADEON HD 4350
Linksys: WMP54G
True Knowledge is Best Acquired Through Experience. |
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Pse
Apprentice
Joined: 01 Mar 2005
Posts: 188
Location: by the plate river
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| Posted: Tue Mar 07, 2006 8:32 pm Post subject: |
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As far as I know, "ywrap" and "mtrr" are options for vesa. There must be other options for radeonfb, but I didn't need to use any.
FWIW, I did have some problems using radeonfb and ATI's driver, but I think they are solved now... I think it was a rare problem anyways. Switching between a VT and Xorg caused serious screen corruption in X, so I had to restart it, argh. It's a minor issue, if you're not constantly switching between VTs and X. I don't think many people had that problem, though; so yeah, go ahead and try radeonfb. |
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F-0_ICE
l33t
Joined: 06 Dec 2004
Posts: 679
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| Posted: Fri Mar 17, 2006 2:53 am Post subject: |
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strange nothing happens no change what so ever.
heres my grub setup
| Code: |
video=radeonfb:1280x1024-24@60
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i am thinking it might be that the video chipset i have isn't yet supported by then radeonfb driver. since dmesg has no output on radeonfb and the fact that there is no *click* or video mode change. makes sense it is pretty new since its build on the PCI Express bridge.
| Code: |
01:05.0 VGA compatible controller: ATI Technologies Inc RS480 [Radeon Xpress 200G Series] (prog-if 00 [VGA])
Subsystem: Hewlett-Packard Company Unknown device 2a24
Flags: bus master, 66MHz, medium devsel, latency 255, IRQ 201
Memory at d8000000 (32-bit, prefetchable) [size=128M]
I/O ports at ef00 [size=256]
Memory at fddf0000 (32-bit, non-prefetchable) [size=64K]
[virtual] Expansion ROM at fdd00000 [disabled] [size=128K]
Capabilities: [50] Power Management version 2
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what do you think?
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~AMD64
AMD: Athlon64 X2 3800+
2G PC3200
ATI: RADEON HD 4350
Linksys: WMP54G
True Knowledge is Best Acquired Through Experience. |
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Kernel & Hardware
