lydell - debian wheezy that is 7.8 stable with only the main repo (without
the non free repositories - so no non-free drivers) works great with my new
laptop. I see it says on boot error - non free driver for radeon 600 not
loaded or something like that but when I enter the xfce session the
I think I can finally sum things up here.
Video drivers do something called mode-setting. There are two ways of doing
that: User-space mode-setting (UMS) and Kernel mode-setting (KMS).
KMS is apparently technically superior over UMS. UMS requires _a lot_ of code
in the video driver.
According to https://tracker.debian.org/pkg/xserver-xorg-video-ati, the
stable version used in Debian is 1:6.14.4-8 -- that is, basically the same
version as Trisquel 6. So it seems like Debian uses older software than
Trisquel 7 -- more like Trisquel 6. Then, why not just use Trisquel 6? :)
What would be the easiest of those three, do you think?
Trisquel 6 and 7: it's correct. (I think maybe 4.0 had KMS enabled,
4.0.1 disabled it.)
Unblacklisting works on pre-R600 cards. (R600 was released in 2006.)
R600 and some newer cards worked with some kernel versions, but not the
current ones.
The firmware are various blobs included with Linux
Have I understood the above correctly?
The radeon driver used in Trisquel 6 supports both UMS and KMS. The version
used in Trisquel 7 only supports KMS. The radeon kernel module is disabled in
both Trisquel 6 and 7. In Trisquel 6, that means that UMS is used instead of
KMS. In Trisquel 7,
Based on later comments in this thread I can now answer this myself:
Downgrade to a version with UMS support.
Thank you so much for explaining, I really appreciate it!
The radeon driver worked in Trisquel 6, so it supported 1366x768. The
vesa driver supports only modes specified by the VGA BIOS, usually
1024x768 is the largest. (Radeon kernel mode setting works with
pre-R600 cards only, while the X driver requires it in the version used
in Trisquel 7.)
Seems like I confused things after all.
You're right, the radeon driver _is_ used in Trisquel 6. I just tried
removing it in Trisquel 6. What happens then is that I get worse screen
resolution, and Details under System Settings says VESA MADISON instead
of fallback.
So my idea of
See
e.g.
https://trisquel.info/en/forum/trisquel-70-flash-disk-and-amd-raedonlimited-resolution
for how to make the radeon kernel module load.
To make it really work, this needs downgrading the driver to a version
with user space modesetting, fixing the current kernel driver to work
without
1366x768 is the native res . I get 1024x768. I tried to solve it. Was reading
some old post here and apparently the old vesa driver in trisqul 6 displayed
the native resolution. But that changed with the new versions, the point
release and the 7.
Just in case it is useful to someone else:
A few days ago I felt motivated to try out Trisquel 7 again.
This time I tried to do what was suggested in
http://trisquel.info/en/forum/trisquel-70-flash-disk-and-amd-raedonlimited-resolution:
Commenting the line in
I recently installed Trisquel 7 on an acer lappy with a radeon 4570. I know
there can't be video acceleration and I don't care about it. But the
resolution limited to 1024*768 is really annoying!
can the laptop display a higher res normally?
Typical low resolutions for laptops are 1366x768, or 1280x800 for older ones.
Whatever it is, it's pretty much universally widescreen.
I ran into a very similar problem on a laptop and I found that I had to
remove the radeon drivers from the kernel module blacklist. Once I did that
it loaded everything up the way it used to in Toutatis.
Here's the thread I started about the issue:
What alucardx said works only for older Radeon cards. For newer ones, you'll
have to downgrade something (not the kernel, maybe X.org or libdrm).
So you mean that my Radeon card actually *is* used in Trisquel 6—just in a
different way? If so, it should be possible to downgrade some package in
Trisquel 7 to get the optimal screen resolution, again, shouldn’t it?
It was automatically removed when I removed xserver-xorg-video-ati.
Thanks for explaining!
I booted Trisquel 6 in live mode from a CD, to compare things with Trisquel
7. The same xserver-xorg-video-* packages were installed (but perhaps using
different versions; I didn’t check that). `/etc/modprobe.d/` includes the
same files with the same contents.
For the free software movement it would be a big win if somebody could come
up with a way to ignore “bad” graphics cards in favor of better built-in
graphics.
Unfortunately, I don't think it's possible to solve this in software.
The ['Trisquel 7.0 does not have amd display driver'][1] thread is very
similar to this one:
My graphic card is amd radeon hd 7470. [...] Trisquel 7.0 [...] has
no amd radeon graphic driver.
You can usually use these GPUs in unaccelerated 2-D mode, though.
It didn,t display proper
If it's possible to do so, it would be a BIOS option, but I don't think it
usually is.
Opening a laptop up can certainly be intimidating. Just don't pull on
anything too forcefully, and take your time. It might also help to do some
research, or ask the manufacturer for help.
I have never made any changes to the BIOS on this computer. Since I didn’t
have the issue on Trisquel 6, it can’t be a BIOS option, can it?
No, I mean, there might be an option in the BIOS to disable the Radeon card
so you don't have to physically remove it. But probably not.
Try removing xserver-xorg-video-radeon
Thanks, but that appears to make no difference at all.
I also tried removing xserver-xorg-video-vesa, but then I got no graphical
user interface when I rebooted the computer; instead I got straight into some
command-line mode. So I re-installed that package.
Does removing xserver-xorg-video-ati work?
There are near zero laptops with removable graphics cards (unless integrated
graphics in the CPU count). Unless you have a 2 thick gaming laptop it's
integrated on the motherboard and removing it isn't possible.
It's unfortunate, but it might be time for an upgrade. This time around look
You have to have *some* driver set and if its detecting that you have a given
chip and then you remove the driver for that chip it's not going to work.
It's being auto-detected on the fly in modern distributions.
If there was another driver available in 6 and its been removed from the
Hi! I've happily been using Trisquel (version 6) for about a year now.
Yesterday I upgraded to Trisquel 7, and now I have a display issue.
I use a laptop computer with an ATI Mobility Radeon HD 5650 graphics card. As
far as I understand, there are no free drivers for AMD cards, but it is
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