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  1. #31
    Join Date
    May 2015
    Location
    Spain
    Posts
    3

    Re: distorted graphics

    sumitbhardwaj, thank you very much. It worked for me too. Well, actually we must wait to Fedora team to solve this problem. By the way, if sumitbhardwaj doesnt have any problem, i would like to post his solution in bugzilla and freedesktop cause therea a lot of people with this issue, and wiill be a interesting information to Fedora team.

    Thank U very much!!

  2. #32
    Join Date
    Mar 2011
    Location
    Pune, India
    Posts
    53

    Re: distorted graphics

    You're most welcome @Ankit360, @Dutchman and @gireeshkkm Great to hear this.

    Actually the current Intel driver defaults to SNA (Sandybridge New Acceleration model) for graphics acceleration which I think was introduced with Core i series of processors. Before that, the default was UXA (Unified Acceleration Architecture). Since the GMA X4500 card you guys are using was from that time, I though may be it will work better with UXA, and it did

    Cheers! Have fun!
    Lenovo Thinkpad X240: Intel Core i7 4600U 4th Gen 2.1-3.2 ghz, 8 GB DDR3 PC-12800 RAM, 1 TB Hitachi 7200 RPM HDD, Intel HD4400 Graphics, Intel Wireless 7260+Bluetooth, Intel I218-LM Ethernet, Intel HD Audio.
    Primary OS: Fedora 25 Workstation x86_64
    Secondary OS: Windows 10 Pro x86_64

  3. #33
    Join Date
    Dec 2009
    Location
    India
    Posts
    450

    Re: distorted graphics

    I have on one computer somthing like Intel Corporation Mobile GM945 Integrated Graphics Controller. I have same problem, but alas i have not waited for this solution and instead replaced by linuxmint-xfce-17.1.
    In future, i may try this solution or it might be incorporated in updates. who knows future

  4. #34
    Join Date
    Apr 2012
    Location
    USA
    Posts
    6

    Re: distorted graphics

    @sumitbhardwaj,

    i tried updating the driver (2.99.917-10.20150526) and rebooted...and no joy.

    i then tried the xorg.conf "uxa" suggestion and rebooted...and so far so good.

    add me to the list of grateful ones!

  5. #35
    Join Date
    Mar 2011
    Location
    Pune, India
    Posts
    53

    Re: distorted graphics

    I am thinking of raising an issue with the Intel Open Source Center Team or/and Fedora team to do this detection of older chipsets (release before the SandyBridge architecture) in the driver itself and not default to SNA for every chip. That will resolve the issue at source.

    But the thing is, if this detection was not in place, how this was working in the first place in Fedora 20 or 21? Let me take this up in devel mailing list first.
    Lenovo Thinkpad X240: Intel Core i7 4600U 4th Gen 2.1-3.2 ghz, 8 GB DDR3 PC-12800 RAM, 1 TB Hitachi 7200 RPM HDD, Intel HD4400 Graphics, Intel Wireless 7260+Bluetooth, Intel I218-LM Ethernet, Intel HD Audio.
    Primary OS: Fedora 25 Workstation x86_64
    Secondary OS: Windows 10 Pro x86_64

  6. #36
    Join Date
    Aug 2009
    Posts
    8,464

    Re: distorted graphics

    I believe that SNA was working for the older chips, and something just recently changed.

    Don't know what the deal is, but the same version kernel/drivers works fine on Fedora 21, but has problems on Fedora 22.

    It might possibly be the change to a rootless X server?

  7. #37
    Join Date
    Mar 2011
    Location
    Pune, India
    Posts
    53

    Re: distorted graphics

    @DBelton There are two changes I guess in Fedora 22. First, as you said, the X Server runs rootless now and second is the recompilation of some of the C++ code using GCC5 to match the ABI level. If I am not wrong, the F22 version of intel driver is also compiled with GCC 5 now.

    Any of these could have caused this in my opinion.
    Lenovo Thinkpad X240: Intel Core i7 4600U 4th Gen 2.1-3.2 ghz, 8 GB DDR3 PC-12800 RAM, 1 TB Hitachi 7200 RPM HDD, Intel HD4400 Graphics, Intel Wireless 7260+Bluetooth, Intel I218-LM Ethernet, Intel HD Audio.
    Primary OS: Fedora 25 Workstation x86_64
    Secondary OS: Windows 10 Pro x86_64

  8. #38
    Join Date
    Mar 2011
    Location
    Pune, India
    Posts
    53

    Re: distorted graphics

    Quote Originally Posted by oconnell99
    sumitbhardwaj, thank you very much. It worked for me too. Well, actually we must wait to Fedora team to solve this problem. By the way, if sumitbhardwaj doesnt have any problem, i would like to post his solution in bugzilla and freedesktop cause therea a lot of people with this issue, and wiill be a interesting information to Fedora team.

    Thank U very much!!
    You can post it, no issues. Although I am writing an article for my blog as well. So you can either link this thread or my blog article there, whatever you find preferable.
    Lenovo Thinkpad X240: Intel Core i7 4600U 4th Gen 2.1-3.2 ghz, 8 GB DDR3 PC-12800 RAM, 1 TB Hitachi 7200 RPM HDD, Intel HD4400 Graphics, Intel Wireless 7260+Bluetooth, Intel I218-LM Ethernet, Intel HD Audio.
    Primary OS: Fedora 25 Workstation x86_64
    Secondary OS: Windows 10 Pro x86_64

  9. #39
    Join Date
    May 2015
    Location
    London
    Posts
    2

    Thumbs up Re: distorted graphics

    Quote Originally Posted by sumitbhardwaj
    @Ankit360: Your log shows you are logged in using "liveuser" account. Are you running the system in from live dvd? Have you not been able to install it?

    Anway, if anybody is having this problem on an installed system, please try out below steps :

    Create a new file called /etc/X11/xorg.conf.d/20-intel.conf with below text:

    Code:
    Section "Device"
            Identifier  "card0"
            Driver      "intel"
            Option      "AccelMethod"  "uxa"
    EndSection
    Reboot and see if it resolves your issue. I am not sure whether this can be done on a live dvd. But you can try coz if the live dvd is running from a pen drive, there is some storage space available on it.
    Spot on! Problem solved. Excellent! and big thankyou.

  10. #40
    Join Date
    Mar 2011
    Location
    Pune, India
    Posts
    53

    Re: distorted graphics

    @oconnell99:

    Here is the blog post that describes the problem and solution to this issue. Feel free to link to it anywhere you like :

    http://krazyabouttechnology.blogspot...aphics-in.html
    Lenovo Thinkpad X240: Intel Core i7 4600U 4th Gen 2.1-3.2 ghz, 8 GB DDR3 PC-12800 RAM, 1 TB Hitachi 7200 RPM HDD, Intel HD4400 Graphics, Intel Wireless 7260+Bluetooth, Intel I218-LM Ethernet, Intel HD Audio.
    Primary OS: Fedora 25 Workstation x86_64
    Secondary OS: Windows 10 Pro x86_64

  11. #41
    Join Date
    Jun 2015
    Location
    new zealand
    Posts
    16

    Re: distorted graphics

    Kia ora Sumit,

    Thanks for your work on this issue! Could you please explain your solution more clearly for lay people?

    what text editor?

    how do we create this folder?

    where do we save it?

    Thank you!

    Geoff

  12. #42
    Join Date
    Jun 2015
    Location
    Texas
    Posts
    3

    Re: distorted graphics

    Quote Originally Posted by ankit360
    i m using ubuntu 14.04 on my office desktop . now want to switch to fedora 22

    but i m getting distorted graphics . desktop has intel g41 integrated graphics card

    posting some screenshot

    lspci output

    Code:
    00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM Controller (rev 03)
    00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset Integrated Graphics Controller (rev 03)


    I am having very weird things happen too.. I just installed Feddy ( Clean install ) of F22 yesterday and this keeps happening!

    https://docs.google.com/document/d/1...it?usp=sharing

  13. #43
    Join Date
    Dec 2004
    Location
    Australia
    Posts
    492

    Re: distorted graphics

    Thank you Sumit. Your fix has enabled me to use Fedora 22.

    Question. Are there any notable disadvantages to using UXA over SNA?

    Thanks

  14. #44
    Join Date
    Jun 2015
    Location
    new zealand
    Posts
    16

    Re: distorted graphics

    Hi, could someone explain how to do this fix in simple terms - or is this vital fix reserved for experts only??

  15. #45
    Join Date
    May 2012
    Location
    Texas
    Posts
    17

    Re: distorted graphics

    It's really very simple, not for experts only...just copy and paste the code shown above into a text editor, save it, and place the new file in your etc/X11/xorg.conf.d/ folder, and do this with either sudo or su -. Reboot, and you should be good to go. I hope this helps.

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