1 |
On Donnerstag 16 Oktober 2008, Hal Martin wrote: |
2 |
> Volker Armin Hemmann wrote: |
3 |
> > On Sunday 28 September 2008, Hal Martin wrote: |
4 |
> >> Hello all, |
5 |
> >> |
6 |
> >> I am contemplating building a new computer with an AMD/ATi graphics |
7 |
> >> card. I've been following the subject of ATi driver quality in linux for |
8 |
> >> a while, but I realize that the experiences I read on Google search |
9 |
> >> results are, shall we say, biased, as many people who have perfectly |
10 |
> >> working cards don't go out and comment on how great their drivers are. |
11 |
> >> |
12 |
> >> So, do any of you have newer (HD series) AMD/ATi graphics cards? |
13 |
> > |
14 |
> > HD3870 |
15 |
> |
16 |
> I just picked up the HD3850, which is a nice card by all measures. |
17 |
> |
18 |
> >> What drivers (AMD closed source, or open source) are you using? |
19 |
> > |
20 |
> > fglrx - the closed source ones. |
21 |
> |
22 |
> I installed these drivers (from portage) and tried them. |
23 |
> |
24 |
> >> Are they stable? |
25 |
> > |
26 |
> > yes. Switching between vt and X works, and restarting X too - but the ati |
27 |
> > scripts in /etc/acpi have to be removed. |
28 |
> > With desktop effects turned off 2d is fast and snappy and video is ok. |
29 |
> > With desktop effects turned on 2d is fast except manually resizing |
30 |
> > windows and xv-video sucks. Luckily kde 4.1 makes it easy to switch ;) - |
31 |
> > and I don't need xv ;) |
32 |
> |
33 |
> I had a horrid time with the fglrx drivers. I use two displays, and |
34 |
> while it was a breeze to setup (even easier than on an NVidia card) the |
35 |
> result was horrid. I can't drag windows from one display to another, the |
36 |
> windows wrap within the display. The fglrx_gears program renders |
37 |
> something that I don't believe heralds from this planet; while glx_gears |
38 |
> renders the same thing I get on my NVidia card only 10% slower (which is |
39 |
> expected given the performance difference between the 7900GTX and the |
40 |
> HD3850.) |
41 |
> |
42 |
> Trying to exit X11 causes a complete system lockup, requiring a hard reset. |
43 |
> |
44 |
> >> How is the performance? |
45 |
> > |
46 |
> > very good. I play ut2004 and vegastrike 0.5. With a but. See above. |
47 |
> |
48 |
> I couldn't get any Wine apps that use 3D to work. Call of Duty 4 refused |
49 |
> to start, citing that the video card didn't support alpha blending. |
50 |
> |
51 |
> >> Any noise issues with your card when it's idle? Under load? |
52 |
> > |
53 |
> > the fan is very quiet in KDE or playing games. Only in the menus of |
54 |
> > ut2004 or on a vt it turns up - but is still very bearable. |
55 |
> > aticonfig --odgt |
56 |
> > |
57 |
> > Default Adapter - ATI Radeon HD 3870 |
58 |
> > Sensor 0: Temperature - 51.00 C |
59 |
> |
60 |
> My card is incredibly, nay, unbelievably loud until you throttle the fan |
61 |
> manually from aticonfig, which, I might add, is absent from the Catalyst |
62 |
> control centre gui. After throttling the fan down to 3% the card settles |
63 |
> around 45.00C and is quiet enough to bare. |
64 |
> |
65 |
> My attempt to uninstall the portage based ATI drivers (which are |
66 |
> slightly dated,) and install the official drivers from ATI proved to |
67 |
> wreck my system beyond comprehension. 'eselect opengl list' no longer |
68 |
> includes ATI, only xorg-x11. I have no ability to start X11 anyone, and |
69 |
> no fan control, meaning I now have a jet engine residing in my computer. |
70 |
|
71 |
never ever install drivers without an ebuild. If you need the latest driver |
72 |
just copy&rename one. That eselect stopped to work is the logical conclusion. |
73 |
Deinstall the driver, change an ebuild, try again. |
74 |
|
75 |
> |
76 |
> There must be something I'm doing wrong. I've heard that ATI drivers |
77 |
> aren't supposed to lock up your system when you exit X11, is this still |
78 |
> the case? Was this ever the case with two monitors? |
79 |
|
80 |
for some people it locks up, for others it doesn't (like with nvidia). I |
81 |
solved the lockup issue for myself by removing the ati scripts from /etc/acpi. |
82 |
|
83 |
|
84 |
> Is there any way to get the ATI driver to automatically set a reasonable |
85 |
> fan speed, or must I do it manually? |
86 |
|
87 |
It does for my card. |