Screen corruption

[Thomas Hicks]

Binary package hint: xorg

Screen corruption of a new install of Ubuntu 8.04 (wubuntu, but also affects live cd)

Description of affect.
the screen has horizontal white strips one/two pixels wide, causing a chequerboard effect across the screen with duologue boxes broken up into two parts

like so

-----XXXXX----XXXXX
X ----- X
-----X --- X
X ---- X
-----XXXX----XXXXXX

with white bocks represented by -- and the dialogues pixels X's
[lspci]
01:00.0 VGA compatible controller [0300]: VIA Technologies, Inc. Chrome9 HC IGP [1106:3371] (rev 01)

[Bryce Harrington (bryce)]

Thanks for including all the necessary info. Looks like you're using the -openchrome driver, so setting that as the package.

[Samer Moh'd (techno255)]

I had the same problem with the same version of Ubuntu (both in 32 and 64 bit editions) With the same graphics card (VIA Chrome9 HC IGP), but fixed that by selecting safe graphics mode in the CD main menu.
Also, after finishing the installation I noticed that 3D games that use OpenGL run very slowly, and I couldn't use the visual effects as well (tells me "Desktop effects could not be enabled") ,I think its because of the safe graphics mode.

[Thomas Hicks (hicks-kingtom)]

Just a quick note to say that safe graphics mode dosen't fix the problem and I now have a picture of the lovely screen ;-)

[Raphael Geissert (atomo64)]

Thomas, could you please test the package of intrepid or, even better, jaunty? In case you really need to stay with hardy then this looks like the patch fixing the bug: http://www.openchrome.org/trac/changeset/508/trunk

[Samer Moh'd (techno255)]

My screen was similar to Thomas's, but as I said safe graphics solved it.

Note: now I am back to ubuntu, in Intrepid it didn't work (I had to set the safe graphics thing as in hardy), but under Jaunty (Xubuntu 9.04) it works!!! and I am now waiting for Kubuntu to finish downloading (While using Xubuntu).

Thanks All.

[Bartosz Kosiorek (gang65)]

Hi.
This is the reason why thats happen:

(EE) CHROME(0): Unknown Card-Ids (3371|105B| C87); please report to <email address hidden>

What motherboard/laptop do you have?
Please enter the link to the webpage.

[Bartosz Kosiorek (gang65)]

The motherboard P4M9007MB-8RS2H is not added to src/via_id.c file.
This bug was resolved in Openchrome revision 583, and it is already resolved in Ubuntu 9.04 Jaunty.

Please see
http://openchrome.org/trac/changeset?new=583%40trunk%2Fsrc%2Fvia_id.c&old=581%40trunk%2Fsrc%2Fvia_id.c

[Samer Moh'd (techno255)]

Hi.

(At last) I am buying a new graphics card :D (VIA Chrome 9 integrated graphics doesn't fully support OpenGL under Linux, this is normal because even under windows it runs worse than KDE 4 with XRender compositor(OpenGL doesn't work) with HEAVY effects, and Vista doesn't support VIA Chrome 9 at all).

My motherboard is EliteGroup P4M900T-M2 (http://www.ecs.com.tw/ECSWebSite/Products/ProductsDetail.aspx?DetailID=822&CategoryID=1&DetailName=Feature&MenuID=44&LanID=0).

Thanks all for your time.

[Bartosz Kosiorek (gang65)]

@Samer Moh'd

Could you please attach your Xorg.log from the motherboard EliteGroup P4M900T-M2 on Ubuntu 9.04 ?

I don't know if your motherboard is detected by Openchrome.

[Samer Moh'd (techno255)]

I think it detects my motherboard correctly

[Samer Moh'd (techno255)]

Oh, and it's Kubuntu, but I don't think it matters.

[Thomas Hicks (hicks-kingtom)]

This no longer affects me after upgrading to Ubuntu 9.04.