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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 radeon |
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> 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 half |
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> the screen. My max resolution is 1920*1080 so I have a big black border |
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> around my screen. I can startx which works but cannot change the |
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> resolution to anything bigger. GRUB splash uses full screen but when the |
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> 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. In |
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> my other set (fglrx) up I have simple framebuffer enabled which works |
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> 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 the |
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> same problem with small resolution but not if I do not boot in UEFI |
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> mode. |
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Hmm ... I don't get such problems here on 3 PCs running different amd/radeon |
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cards and all with radeon drivers. |
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You haven't said which card you're running. If it is a very recent model the |
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radeon drivers may not have caught up with it yet? |
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If you need to compare kernel settings let me know, although there are wiki |
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pages that are quite detailed on this topic. |
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> Anyone come across this or got this to work properly with 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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On PC boots in UEFI (directly boots the efi binary, no boot managers) and it |
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has no such problems on 2 x 1920*1080 monitors. |
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-- |
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Regards, |
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Mick |
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