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Shutdown Problems and/or Sluggish System w/ AMD Graphics?

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gold_finger:
If you are experiencing shutdown/logout problems and/or are experiencing unusually sluggish performance when trying to perform certain tasks (eg. using "gksu" to run a gui program as root) and have an AMD graphics card, below is a possible solution.  (These types of problem do not apply to all AMD cards -- just a few.  So if you are not having any problems, leave your system alone.)

Big thank you to member N4RPS for finding and posting this solution.  Here is the original post he made while helping someone here on the forum.  Below, I just copy/pasted everything he wrote in that post to here so that people can easily find this if it applies to them.  (If this post helps you thank N4RPS, not me.)


--------------------------------------------------------------------------------------------------------------------------------------------------------


Hello!

With some help from its creator, I was able to successfully complete the procedure documented in the YouTube video.

I created your script on the desktop, and made it executable. So far, it seems to work right away, This is very good, because in an actual install, the action button is just as slow to respond as the Whisker Menu is. Additionally, the gksu/gksudo command, or anything else requiring root password (except terminal sudo/su) takes 30-40 seconds to appear after being called on.
 

--- Quote from: misko_2083 on April 10, 2015, 01:45:26 AM ---Just remembered, it could be the AMD Graphics driver. Are you using propriatary  or free drivers?
--- End quote ---
UPDATE:

It IS a driver issue with certain AMD Radeon HD video cards!. As I see it all, seem AMD, the X11 folks, and XFCE are blame-shifting the whole thing back and forth. Meanwhile....

The Full Story: https://bugs.launchpad.net/ubuntu/+source/xfce4-session/+bug/1319220

Let's see... I had figured out that X11 had something to do with it - specifically, X11 as XFCE uses it. Misko's reference to the video driver was the missing piece of the puzzle.

If you're affected by this in LL and XFCE, creating the following file should fix it. If the fixes the OP's issue, then I guess this one can be flagged as SOLVED.


--- Code: ---sudo mkdir -p /etc/X11/xorg.conf.d/
--- End code ---

--- Code: ---sudo nano /etc/X11/xorg.conf.d/20-radeon.conf
--- End code ---

Copy  the following lines, and paste them into nano with [SHIFT-CTRL-C]:

  Section "Device"
      Identifier "Radeon"
      Driver "radeon"
      Option "AccelMethod" "EXA"
  EndSection

Press [CTRL-O] then [ENTER] to save, and [CTRL-X] to exit. Reboot. For me, LL is now as snappy as it ought to be!

If  anyone doesn't know what kind of video card they have, as you see below, if the output of


--- Code: ---sudo lshw -c video
--- End code ---

says AMD or ATI, please reply with the model number. This way, we can get an idea of which models are affected - and which ones aren't. We already know that Radeon HD 8250 is, but Radeon HD 6320 is not...END UPDATE
Not sure, but it just MIGHT be the issue:
 
[email protected]:~$ sudo lshw -c video
[sudo] password for rob:

30-45 seconds later...

  *-display               
       description: VGA compatible controller
       product: Temash [Radeon HD 8250/8280G]
       vendor: Advanced Micro Devices, Inc. [AMD/ATI]
       physical id: 1
       bus info: [email protected]:00:01.0
       version: 00
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:81 memory:e0000000-efffffff memory:f0800000-f0ffffff ioport:3000(size=256) memory:f0200000-f023ffff memory:f0260000-f027ffff

On my Samsung, which has no latency issues, this report also took a bit of time to generate. IT has a Radeon HD *6320*, and the width is *32 bits*. Same driver  - radeon. (I wonder if THAT could have something to do with it?)

I sure hope an overall solution is out there for this. These long delays are going to drive me to forget about running LL on this particular netbook...

73 DE N4RPS
Rob

Jerry:
Awesome sauce, gold_finger and N4RPS :)

rafa:
APU AMD A4-1200 with Radeon HD 8180

LL 2.6, kernel 3.13 worked with opensorce driver and proprietary
but kernel 4.4 worked only with opensource

P.S.: general system performance was improved

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