On 2013-08-08 23:55, John Hupp wrote: > On 8/8/2013 2:58 AM, Nio Wiklund wrote: >> On 2013-08-08 03:01, Aere Greenway wrote: >>> On 08/07/2013 05:04 PM, John Hupp wrote: >>>> For what it's worth, I have just found that the workaround detailed in >>>> Comment #1 in the bug report >>>> (http://bugs.launchpad.net/ubuntu/+source/linux/+bug/1178982) does >>>> work. On my system there was no existing /etc/X11/xorg.conf, so I >>>> created it and added the specified lines as the sole content of the file. >>>> >>>> The colors and the proper window size were restored. This Dell has an >>>> Intel 845G chipset, so this workaround may fix this problem on any >>>> motherboard with the same chipset (or even other Intel chipsets that >>>> use the same Intel driver). >>>> >>>> ------------------------------------------------------------------------ >>>> >>>> Verging strictly off-topic, but remaining with the question of getting >>>> Flash to work decently well: >>>> >>>> On this former XP machine with a Celeron 2.4 GHz and 1 GB RAM, YouTube >>>> videos in the default window size and playing at 360p seemed to >>>> perform normally. Likewise, video from Hulu can be set to a lower >>>> quality to help assure continuous play. But video from Vimeo can only >>>> be set to HD-Off (if HD is available). And with video from the >>>> broadcast network sites CBS.com, NBC.com and ABC.com, you can only >>>> change screen size. So it seems that videos from Vimeo, CBS, NBC and >>>> ABC offer very little accommodation for lower-spec setups. And >>>> relatedly, I find that video that plays OK on a Windows PC with a dual >>>> core Intel E2200 @ 2.20 GHz -- even with just 1.3 Mbps download on my >>>> DSL service -- plays badly on the 2.4 GHz Celeron using the same >>>> Internet connection. So in this case processing power is more >>>> important than Internet connection speed. >>>> >>>> 2.4 GHz is the minimum required spec for Flash (the last I knew), but >>>> perhaps that merely means that you'll be able to play *something* >>>> (like YouTube or Hulu videos at a lower-quality setting), not that >>>> you'll be able to play everything. >>>> >>>> Does anyone know if there is a way to lower the quality settings for >>>> sites like Vimeo, CBS, NBC and ABC, even if there is no >>>> quality-setting tool in the player interface? (Or does anyone differ >>>> with the assessment I offer above?) >>> John: >>> >>> Thank you very much for your reply. >>> >>> There's a lot of really good information in it. >>> >>> -- >>> Sincerely, >>> Aere >>> >> +1 >> Thank you very much for describing and discussing this workaround :-) >> >> I was able to get good graphics with Saucy alpha 2 in my old IBM >> Thinkcentre desktop computer, that has suffered from bad graphics since >> Raring. I used your workaround, John, and it worked without issues with >> the log in screen. >> >> My Thinkcentre has the following graphics >> >> VGA compatible controller: Intel Corporation 82865G Integrated Graphics >> Controller (rev 02) >> >> I'll attach two text files for clarity, one with the tips explicitly >> stated, and one with the output of lspci on my Thinkcentre. >> >> I used the installed system for USB according to the following link >> >> https://help.ubuntu.com/community/InstalledSystemFakePAE >> >> I don't notice the bad graphics with my wall-paper (for Saucy alpha2), >> but switch to the default one, and you see it! After adding uxa >> acceleration, the default wallpaper is rendered as it should, without >> the sharp boundaries, 'jagged' as described by Aere concerning the >> Raring wallpaper. >> >> -o- >> >> I found also this link about UXA for Intel graphics >> >> http://task3.cc/135/intel-graphic-cards-linux-xorg-and-uxa-performance-boost/ >> >> -o- >> >> @ Phill: >> >> Where could this workaround be added into the Lubuntu Wiki? >> >> Best regards >> Nio > > I'm trying to find a workaround for the workaround and fix this garbled > login screen. > > But to round out the knowledge of the problem and solution, I observe > that uxa acceleration solved a different problem for Nio than the one I > was first addressing (with Flash content displaying in green and purple > in a compressed window). Nio wrote: > > "I don't notice the bad graphics with my wall-paper (for Saucy alpha2), > but switch to the default one, and you see it! After adding uxa > acceleration, the default wallpaper is rendered as it should, without > the sharp boundaries, 'jagged' as described by Aere concerning the > Raring wallpaper." > > And to pick out another bit worth noting, he observed that uxa causes no > problem with the login screen, but his case deals with Saucy alpha 2 > rather than Raring, so I merely underline those particulars. > > So now I'm wondering how uxa fouls up the LightDM login screen on Raring > but not on Saucy. I'm hanging on by my troubleshooting fingernails here > looking for clues, but https://en.wikipedia.org/wiki/LightDM notes that > LightDM "uses various front-ends to draw login interfaces, so-called > Greeters." > > The apparent Greeter of interest here is the GTK+ Greeter. Following > the the references in the LightDM wiki, I see that 12.04 used > lightdm-gtk-greeter (1.1.5-0ubuntu1). 13.04 uses v 1.5.1-0ubuntu1 of > the Greeter (and v 1.6.0-0ubuntu3 of LightDM). > > What version of the Greeter is Saucy using? > > Are there some LightDM/Greeter settings I can play with to see if any of > them yields a clean login screen? Or can we compare some Raring vs. > Saucy configurations and learn something useful? > > ------------------------------------------------------------------------ > > And closer to the original topic, it seems that no one has refiled the > closed bug. If I can boot with an earlier kernel and the Flash problem > does not appear as noted there (I have not tested this myself), is that > enough to conclude that this bug should be filed against the kernel?
Hi John, You can flash the Saucy 'installed system' directly to a USB drive and run it on your computer. That way you get a direct comparison between Raring and Saucy on the same hardware. You must remember that I have different hardware (probably a similar graphics chip, but if I read your description correctly, they are different). https://help.ubuntu.com/community/InstalledSystemFakePAE This installed system has (as it is without any update/upgrade) lightdm 1.7.7-0ubuntu1 (and the latest version is 1.7.7-0ubuntu2) lightdm-gtk-greeter 1.6.0-0ubuntu1 (also the latest version) Best regards Nio -- Lubuntu-users mailing list Lubuntu-users@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/lubuntu-users
