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On Mon, 28 Dec 2015 13:41:57 +0000 |
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Mick <michaelkintzios@×××××.com> wrote: |
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> On Monday 28 Dec 2015 09:11:10 john wrote: |
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> > Hello, |
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> > |
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> > I have installed Gentoo on to another partition in order to use |
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> > radeon drivers for desktop instead of fglrx. |
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> > |
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> > When I start my resolution is very small (1280x600) and only uses |
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> > half the screen. My max resolution is 1920*1080 so I have a big |
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> > black border around my screen. I can startx which works but cannot |
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> > change the resolution to anything bigger. GRUB splash uses full |
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> > screen but when the kernel loads it switches to small resolution. |
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> > |
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> > The only thing I can think of which is causing this issue is UEFI. |
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> > In my other set (fglrx) up I have simple framebuffer enabled which |
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> > works when I set up resolution in grub default. |
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> > |
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> > Strangely enough when I start system rescue cd in UEFI mode I get |
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> > the same problem with small resolution but not if I do not boot in |
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> > UEFI mode. |
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> |
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> Hmm ... I don't get such problems here on 3 PCs running different |
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> amd/radeon cards and all with radeon drivers. |
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> |
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> You haven't said which card you're running. If it is a very recent |
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> model the radeon drivers may not have caught up with it yet? |
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> |
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> If you need to compare kernel settings let me know, although there |
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> are wiki pages that are quite detailed on this topic. |
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> |
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> |
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> > Anyone come across this or got this to work properly with |
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> > radeon/UEFI? |
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> > |
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> > Moral, don't use UEFI I guess but that's the future???????!!!!!! |
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> > |
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> > John |
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> |
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> On PC boots in UEFI (directly boots the efi binary, no boot managers) |
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> and it has no such problems on 2 x 1920*1080 monitors. |
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> |
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|
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Hmm, |
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thanks, I have now tried an old monitor and its screen |
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resolution was good (ie 1920x1080) so I think it's the monitor. |
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I have a R9 280 radeon card which is pretty new but the monitor is very |
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new (display port only, acer xb240h model) so I guess it's something do |
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do with that, perhaps EDID but not really sure. The whole graphics |
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stack is pretty bemusing and I would love to make sense of it all. |
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It's good to know you got it running on other monitors which gave me |
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the idea to try it on an older monitor. I will continue to tweak but.... |
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Thanks |
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|
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John |
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