From: ludo@gnu.org (Ludovic Courtès)
To: Dmitry Nikolaev <cameltheman@gmail.com>
Cc: guix-devel <guix-devel@gnu.org>
Subject: Re: Set screen resolution in X.
Date: Tue, 01 Sep 2015 23:18:30 +0200 [thread overview]
Message-ID: <87io7tet3t.fsf@gnu.org> (raw)
In-Reply-To: <CAH3JXcFbrEUY+U3y4wiX3as7JC-EiPUFuUJiJmH+7HvyVz15-Q@mail.gmail.com> (Dmitry Nikolaev's message of "Mon, 31 Aug 2015 14:46:13 +0300")
Dmitry Nikolaev <cameltheman@gmail.com> skribis:
>>> I've tried everything. Please help me. I want to help Guix, write new
>>> packages and patches, but I can't. My eyes hurts because of wrong
>>> resolution. Here is my full config.scm:
>
>> Are you sure the resolution you want is supported in your X session?
>> Please post the output of "xrandr".
>
> $ xrandr
> xrandr: Failed to get size of gamma for output default
> Screen 0: minimum 1024 x 768, current 1024 x 768, maximum 1024 x 768
> default connected 1024x768+0+0 0mm x 0mm
> 1024x768 0.00*
>
> Here is some of my lspci. As you can see I have Radeon card:
>
> $ lspci | grep -i radeon
> 01:05.0 VGA compatible controller: AMD/ATI [Advanced Micro Devices,
> Inc.] RS880M [Mobility Radeon HD 4225/4250]
> 01:05.1 Audio device: AMD/ATI [Advanced Micro Devices, Inc.] RS880
> HDMI Audio [Radeon HD 4200 Series]
>
> And here is the answer to the topic question. How to set screen
> resolutions? Like this:
>
> (define (my-slim-service)
> (mlet* %store-monad ((config (xorg-configuration-file
> ;; #:drivers '("radeon" "vesa")
> #:resolutions '((1366 768) (1024 768))
> ))
> (startx (xorg-start-command
> #:configuration-file config)))
> (slim-service #:startx startx)))
>
> But it won't work for me, because of non-free radeon microcode. If I
> uncomment #:drivers line I'll get error like this on X startup:
>
> Missing Free firmware
> Failed to load firmware "/*(DEBLOBBED)*/"
It looks like Xorg falls back to VESA, which may be why ‘xrandr’ gives
you no choice. So it’s probably not a GuixSD-specific problem.
I don’t know the status of free drivers for these Radeon cards. Maybe
http://h-node.org or similar sites have more info?
Thanks,
Ludo’.
next prev parent reply other threads:[~2015-09-01 21:18 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-18 8:26 Set screen resolution in X Dmitry Nikolaev
2015-08-19 19:20 ` Alex Kost
2015-08-31 11:46 ` Dmitry Nikolaev
2015-09-01 21:18 ` Ludovic Courtès [this message]
2015-08-23 21:45 ` Ludovic Courtès
-- strict thread matches above, loose matches on Subject: below --
2015-08-14 9:27 Camel
2015-08-13 7:12 Camel
2015-08-13 9:23 ` Andy Wingo
2015-08-13 12:32 ` Thompson, David
2015-08-20 13:06 ` 宋文武
2015-08-12 7:08 Camel
2015-08-10 18:16 Camel
2015-08-10 20:16 ` Thompson, David
2015-08-11 20:06 ` Camel
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