Did anyone refile bug for Flash Player shows green/purple in compressed window?

[John Hupp]

On 8/13/2013 4:47 PM, Nio Wiklund wrote:
> On 2013-08-13 20:46, John Hupp wrote:
>> Here is a fresh summary (with one new result) of the problem on machines
>> with integrated Intel graphics in which Adobe Flash Player 11.2 displays
>> only with shades of purple and green in a horizontally compressed window.
>>
>> (My current example is a Dell Dimension 2400 on Raring.)
>>
>> In my testing with the Intel driver using its default acceleration:
>> - Flash 11.2 works on Quantal with the 3.5 kernel
>> - Flash 11.2 works on Raring with the 3.5 kernel **
>> - Flash 11.8 works on Raring with the 3.8 kernel (in Chrome)
>> - Flash 11.2 fails on Raring with the 3.8 kernel
>> - Flash 11.2 fails on Saucy with its default kernel
>>
>> Disabling Flash *hardware* acceleration altogether (via R-click in the
>> Flash display window: Settings: General tab) did not fix the problem.
>>
>> Setting the Intel driver's acceleration method to UXA rather than its
>> default SNA *always* fixes the Flash problem, but causes a garbled login
>> screen under LightDM that so far has no workaround.
>>
>> I also tried one possible fix for the default Intel SNA acceleration
>> using the TearFree option.   I created
>> /etc/X11/xorg.conf.d/20-intel.conf with contents:
>>      Section "Device"
>>         Identifier  "Intel Graphics"
>>         Driver      "intel"
>>         Option      "AccelMethod"  "sna"
>>         Option      "TearFree"    "true"
>>      EndSection
>> But this had no effect.
>>
>> There was a helpful bug report on file at
>> http://bugs.launchpad.net/ubuntu/+source/linux/+bug/1178982.  (Note that
>> it was filed against Linux.)  Workarounds posted there were to change
>> the Xorg acceleration method to UXA, or boot with an older kernel.  The
>> bug was closed only because the original poster didn't have possession
>> of the machine anymore.
>>
>> ------------------------------------------------------------------------
>>
>> ** Flash sort of works in this case.  The colors and window dimensions
>> are normal.  But there were other odd display-related effects.  Raring
>> booting to a a low-resolution desktop with the mouse pointer locked.  I
>> started Chromium via the keyboard and the flash video played long enough
>> for me to see normal colors/dimensions, but then it locked up the browser.
>>
>> In my interest in testing under Raring with an older kernel, I initially
>> tried to use a Live USB with persistence and follow the instructions at
>> https://wiki.ubuntu.com/Kernel/MainlineBuilds for installing older
>> Mainline kernels.  But this failed to install/run properly with the Live
>> USB.  And besides, I wanted to use Stock rather than Mainline kernels.
>> So I installed a different hard drive, installed Quantal, then upgraded
>> to Raring.  I suppose if I had run Software Update under Quantal, I
>> would have gotten a 3.6 kernel to test as well.  As it was, Raring's
>> Software Update did not install a 3.6 kernel, but only the kernel
>> updates proper to Raring.
>>
>> ------------------------------------------------------------------------
>>
>> Looking at the above behavior of the "black box" without nearly enough
>> technical knowledge, all I can see at this point is that there is an
>> adverse interplay between certain versions of the kernel, the Intel
>> driver, and Flash.  (And I grant that I have not documented the versions
>> of the Intel driver in the various cases, but no one has given me any
>> indication that the Intel driver version is an issue here.)
>>
>>
>>
> Hi John,
>
> If I remember correctly, it does not work to install other kernels in
> persistent live systems. You can update and or install other program
> packages, but not kernels. An installed system on a USB drive will not
> suffer from such problems.
>
> Were you able to use that method to update kernels in Raring?
>
> Best regards
> Nio

Thanks, Nio.

Though I still haven't tried installing other kernels in an installed 
system on a flash drive, today I used the method at 
http://wiki.ubuntu.com/Kernel/MainlineBuilds to test other mainline 
kernels on the temporarily-installed hard drive I describe above.  (I'd 
still like to know if there is a similar archive of stock kernels 
somewhere, though perhaps all the stock kernels are right there, 
identified by 
http://kernel.ubuntu.com/~kernel-ppa/info/kernel-version-map.html 
<http://kernel.ubuntu.com/%7Ekernel-ppa/info/kernel-version-map.html>.)

I found that Flash 11.2 works normally on Raring with the last 3.6 and 
3.7 mainline kernels, but fails with the latest mainline kernel, 
3.11.0-031100rc5.

Together with my earlier test results (above), this seemed to me to 
provide enough indications to file a bug against the kernel, which I 
have just done at 
http://bugs.launchpad.net/ubuntu/+source/linux/+bug/1212455.